2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 979
DTC Descriptors
DTC C056D 00
- ECU Hardware Performance
DTC C056D 3C
- ECU Hardware Performance Internal Communications Failure
DTC C056D 59
- ECU Hardware Performance
DTC C120C
- Brake Pedal Position Sensor 4 Plausibility
DTC C121C
- EBCM Internal Communication Error
DTC C121E
- EBCM Unimplemented Interrupt
DTC C121F
- EBCM Unexpected Exception
DTC C123A
- EBCM High End Timer Watchdog
DTC C123B
- EBCM High End Timer Program Overflow
DTC C123C
- EBCM High End Timer RAM Fault
DTC C123D
- EBCM Solenoid Timeout
DTC C123E
- EBCM High End Timer Periodic Interrupt
DTC C123F
- EBCM Serial Peripheral Interface Inoperative
DTC C1255
- Electronic Control Unit Performance
DTC C1256
- Program ROM Checksum Error
DTC C126E
- EBCM Stack Overrun
DTC C126F
- EBCM Serial Peripheral Interface Performance
DTC C127C
- EBCM Self Test Failed
DTC C127E
- EBCM Module High Temperature
DTC C12A7
- ABS Boost Valve Solenoid Circuit Performance
DTC C12C2
- ABS Left Front Isolation Solenoid Valve Driver Shorted
DTC C12C5
- ABS Right Front Isolation Solenoid Valve Diver Shorted
Showing posts with label DTC Descriptors. Show all posts
Showing posts with label DTC Descriptors. Show all posts
Thursday, December 19, 2019
Sunday, December 15, 2019
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 894
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 894
DTC Descriptors
DTC C012E 00
- Hydraulic Brake Boost Pressure Loss
DTC C12FE 00
- ABS Pump Pressure Loss
Circuit/System Description
The electronic brake control module (EBCM) uses input from the boost pressure sensor for more accurate control during brake and vehicle stability
enhancement system event. The boost pressure sensor is internal to the brake pressure modulator valve. The boost control function will keep
operating amongst conditions that cause the boost pressure to be limited to less than commanded. The boost control continues to apply until the
boost pressure available is no greater than the master cylinder pressure the driver is applying.
Conditions for Running the DTC
* Engine Running
* Ignition voltage is greater than 10 volts.
* Transmission in Park
* Brake pedal was applied.
Conditions for Setting the DTC
* Boost pressure command greater than boost pressure +1500 kPa (217 psi) for 250 ms.
* Master cylinder pressure greater than boost pressure -200 kPa (29 psi) for 250 ms.
* Accumulator pressure greater than 16,000 kPa (2320 psi) for 250 ms.
* DTCs C12BC, C12BD, C12BE, C128A, C128D, C127D, C12E4, C1255, C1256, C126E, C123C, or C127C not set.
Action Taken When the DTC Sets
* The EBCM disables the ABS, traction control system and the vehicle stability enhancement system for the duration of the ignition cycle.
* A driver information center message and/or a warning indicator may be displayed.
Conditions for Clearing the DTC
* The condition for setting the DTC is no longer present.
* The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.
Diagnostic Aids
* Excessive brake pedal applies (10 or more applies in 30 seconds) can cause the DTC to set.
* The DTC can set if the ignition key is in the Accessory position, the brake pedal is applied and then the ignition key is turned ON.
Reference Information
Schematic Reference
Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and Operation/ABS
Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
DTC Descriptors
DTC C012E 00
- Hydraulic Brake Boost Pressure Loss
DTC C12FE 00
- ABS Pump Pressure Loss
Circuit/System Description
The electronic brake control module (EBCM) uses input from the boost pressure sensor for more accurate control during brake and vehicle stability
enhancement system event. The boost pressure sensor is internal to the brake pressure modulator valve. The boost control function will keep
operating amongst conditions that cause the boost pressure to be limited to less than commanded. The boost control continues to apply until the
boost pressure available is no greater than the master cylinder pressure the driver is applying.
Conditions for Running the DTC
* Engine Running
* Ignition voltage is greater than 10 volts.
* Transmission in Park
* Brake pedal was applied.
Conditions for Setting the DTC
* Boost pressure command greater than boost pressure +1500 kPa (217 psi) for 250 ms.
* Master cylinder pressure greater than boost pressure -200 kPa (29 psi) for 250 ms.
* Accumulator pressure greater than 16,000 kPa (2320 psi) for 250 ms.
* DTCs C12BC, C12BD, C12BE, C128A, C128D, C127D, C12E4, C1255, C1256, C126E, C123C, or C127C not set.
Action Taken When the DTC Sets
* The EBCM disables the ABS, traction control system and the vehicle stability enhancement system for the duration of the ignition cycle.
* A driver information center message and/or a warning indicator may be displayed.
Conditions for Clearing the DTC
* The condition for setting the DTC is no longer present.
* The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.
Diagnostic Aids
* Excessive brake pedal applies (10 or more applies in 30 seconds) can cause the DTC to set.
* The DTC can set if the ignition key is in the Accessory position, the brake pedal is applied and then the ignition key is turned ON.
Reference Information
Schematic Reference
Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and Operation/ABS
Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Thursday, December 12, 2019
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 836
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 836
DTC Descriptors
DTC C056D 00
- ECU Hardware Performance
DTC C056D 3C
- ECU Hardware Performance Internal Communications Failure
DTC C056D 59
- ECU Hardware Performance
DTC C120C
- Brake Pedal Position Sensor 4 Plausibility
DTC C121C
- EBCM Internal Communication Error
DTC C121E
- EBCM Unimplemented Interrupt
DTC C121F
- EBCM Unexpected Exception
DTC C123A
- EBCM High End Timer Watchdog
DTC C123B
- EBCM High End Timer Program Overflow
DTC C123C
- EBCM High End Timer RAM Fault
DTC C123D
- EBCM Solenoid Timeout
DTC C123E
- EBCM High End Timer Periodic Interrupt
DTC C123F
- EBCM Serial Peripheral Interface Inoperative
DTC C1255
- Electronic Control Unit Performance
DTC C1256
- Program ROM Checksum Error
DTC C126E
- EBCM Stack Overrun
DTC C126F
- EBCM Serial Peripheral Interface Performance
DTC C127C
- EBCM Self Test Failed
DTC C127E
- EBCM Module High Temperature
DTC C12A7
- ABS Boost Valve Solenoid Circuit Performance
DTC C12C2
- ABS Left Front Isolation Solenoid Valve Driver Shorted
DTC C12C5
- ABS Right Front Isolation Solenoid Valve Diver Shorted
DTC Descriptors
DTC C056D 00
- ECU Hardware Performance
DTC C056D 3C
- ECU Hardware Performance Internal Communications Failure
DTC C056D 59
- ECU Hardware Performance
DTC C120C
- Brake Pedal Position Sensor 4 Plausibility
DTC C121C
- EBCM Internal Communication Error
DTC C121E
- EBCM Unimplemented Interrupt
DTC C121F
- EBCM Unexpected Exception
DTC C123A
- EBCM High End Timer Watchdog
DTC C123B
- EBCM High End Timer Program Overflow
DTC C123C
- EBCM High End Timer RAM Fault
DTC C123D
- EBCM Solenoid Timeout
DTC C123E
- EBCM High End Timer Periodic Interrupt
DTC C123F
- EBCM Serial Peripheral Interface Inoperative
DTC C1255
- Electronic Control Unit Performance
DTC C1256
- Program ROM Checksum Error
DTC C126E
- EBCM Stack Overrun
DTC C126F
- EBCM Serial Peripheral Interface Performance
DTC C127C
- EBCM Self Test Failed
DTC C127E
- EBCM Module High Temperature
DTC C12A7
- ABS Boost Valve Solenoid Circuit Performance
DTC C12C2
- ABS Left Front Isolation Solenoid Valve Driver Shorted
DTC C12C5
- ABS Right Front Isolation Solenoid Valve Diver Shorted
Saturday, December 7, 2019
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2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 728
DTC Descriptors
DTC B3821 00
- Left Rear Window Relay Power Circuit
DTC B3824 00
- Right Rear Window Relay Power Circuit
Diagnostic Fault Information
Circuit/System Description
The body control module (BCM) monitors the window lockout command from the driver door switch (DDS). When the rear window switch
operation is authorized, the the BCM signal voltage drops approximately 5 volts to the rear window switches allowing for normal window
operation from the rear switches. If the rear window lockout function is commanded, the BCM signal voltage is at B+ voltage which disables the
rear window switches and the rear windows will only operate when the BCM receives a command from the driver master control.
Conditions for Running the DTC
* Battery voltage is between 9-16 volts.
* The ignition is ON.
Conditions for Setting the DTC
B3821 00
The BCM detects a fault in the left rear window lockout circuit.
B3824 00
The BCM detects a fault in the right rear window lockout circuit.
Action Taken When the DTC Sets
The left or right rear power window will be inoperative.
Conditions for Clearing the DTC
DTC Descriptors
DTC B3821 00
- Left Rear Window Relay Power Circuit
DTC B3824 00
- Right Rear Window Relay Power Circuit
Diagnostic Fault Information
Circuit/System Description
The body control module (BCM) monitors the window lockout command from the driver door switch (DDS). When the rear window switch
operation is authorized, the the BCM signal voltage drops approximately 5 volts to the rear window switches allowing for normal window
operation from the rear switches. If the rear window lockout function is commanded, the BCM signal voltage is at B+ voltage which disables the
rear window switches and the rear windows will only operate when the BCM receives a command from the driver master control.
Conditions for Running the DTC
* Battery voltage is between 9-16 volts.
* The ignition is ON.
Conditions for Setting the DTC
B3821 00
The BCM detects a fault in the left rear window lockout circuit.
B3824 00
The BCM detects a fault in the right rear window lockout circuit.
Action Taken When the DTC Sets
The left or right rear power window will be inoperative.
Conditions for Clearing the DTC
Thursday, December 5, 2019
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2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 682
DTC Descriptors
DTC B3205 00
- Window Inactive Over Current Fault
DTC B3205 0B
- Window Motor Fast Over Current Fault
Diagnostic Fault Information
Circuit/System Description
The driver door switch (DDS) and passenger door switch (PDS) control the power window functions through the power window motor up and
down control circuits. The door switches monitor the control circuits for fault conditions when up or down operation is requested prior to activating
the function and during operation.
Conditions for Running the DTC
* Battery voltage must be between 9-16 volts.
* The ignition is ON.
Conditions for Setting the DTC
B3205 00
The DDS or PDS detects a short to ground or short to voltage on their respective window motor control circuit.
B3205 0B
The DDS or PDS has detected excessive current flow on their respective window motor control circuit.
Action Taken When the DTC Sets
The affected power window will be inoperative.
Conditions for Clearing the DTC
* The DTC will be current for as long as the fault is present.
DTC Descriptors
DTC B3205 00
- Window Inactive Over Current Fault
DTC B3205 0B
- Window Motor Fast Over Current Fault
Diagnostic Fault Information
Circuit/System Description
The driver door switch (DDS) and passenger door switch (PDS) control the power window functions through the power window motor up and
down control circuits. The door switches monitor the control circuits for fault conditions when up or down operation is requested prior to activating
the function and during operation.
Conditions for Running the DTC
* Battery voltage must be between 9-16 volts.
* The ignition is ON.
Conditions for Setting the DTC
B3205 00
The DDS or PDS detects a short to ground or short to voltage on their respective window motor control circuit.
B3205 0B
The DDS or PDS has detected excessive current flow on their respective window motor control circuit.
Action Taken When the DTC Sets
The affected power window will be inoperative.
Conditions for Clearing the DTC
* The DTC will be current for as long as the fault is present.
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 674
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 674
DTC Descriptors
DTC B3109 00
- Keyless Entry Transmitter 1 Low Battery
DTC B3110 00
- Keyless Entry Transmitter 2 Low Battery
DTC B3111 00
- Keyless Entry Transmitter 3 Low Battery
DTC B3112 00
- Keyless Entry Transmitter 4 Low Battery
Circuit/System Description
With each press of a keyless entry transmitter button, a message containing the current battery state of the transmitter is sent to the remote control
door lock receiver (RCDLR) along with the commanded keyless entry function.
Conditions for Running the DTC
A keyless transmitter button is pressed.
Conditions for Setting the DTC
The DTC sets after 3 consecutive low battery signals from the same programmed transmitter.
Action Taken When the DTC Sets
The keyless entry system is inoperative.
Conditions for Clearing the DTC
The DTC is cleared when a normal transmitter voltage signal is received from the programmed transmitter that set the DTC.
Diagnostic Aids
The keyless entry transmitter used in the 2-Way Advanced Remote Start System is unique to the system. When servicing or replacing a transmitter,
ensure that the correct transmitter is used. The correct transmitter part number can be found in the Accessory section of the parts catalog.
Attempting to replace a 2-Way Advanced Remote Start transmitter with a regular service part may result in a failure to program the transmitter.
Reference Information
Schematic Reference
Remote Function Schematics (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Keyless Entry/Keyless Entry
Transmitter/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Keyless Entry System Description and Operation (Without Accessory 2 Way Remote) (See: Accessories and Optional Equipment/Antitheft and
Alarm Systems/Keyless Entry/Description and Operation/Keyless Entry System Description and Operation (Without Accessory 2 Way Remote)
)Keyless Entry System Description and Operation (With Accessory 2 Way Remote) (See: Accessories and Optional Equipment/Antitheft and
Alarm Systems/Keyless Entry/Description and Operation/Keyless Entry System Description and Operation (With Accessory 2 Way Remote))
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
DTC Descriptors
DTC B3109 00
- Keyless Entry Transmitter 1 Low Battery
DTC B3110 00
- Keyless Entry Transmitter 2 Low Battery
DTC B3111 00
- Keyless Entry Transmitter 3 Low Battery
DTC B3112 00
- Keyless Entry Transmitter 4 Low Battery
Circuit/System Description
With each press of a keyless entry transmitter button, a message containing the current battery state of the transmitter is sent to the remote control
door lock receiver (RCDLR) along with the commanded keyless entry function.
Conditions for Running the DTC
A keyless transmitter button is pressed.
Conditions for Setting the DTC
The DTC sets after 3 consecutive low battery signals from the same programmed transmitter.
Action Taken When the DTC Sets
The keyless entry system is inoperative.
Conditions for Clearing the DTC
The DTC is cleared when a normal transmitter voltage signal is received from the programmed transmitter that set the DTC.
Diagnostic Aids
The keyless entry transmitter used in the 2-Way Advanced Remote Start System is unique to the system. When servicing or replacing a transmitter,
ensure that the correct transmitter is used. The correct transmitter part number can be found in the Accessory section of the parts catalog.
Attempting to replace a 2-Way Advanced Remote Start transmitter with a regular service part may result in a failure to program the transmitter.
Reference Information
Schematic Reference
Remote Function Schematics (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Keyless Entry/Keyless Entry
Transmitter/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Keyless Entry System Description and Operation (Without Accessory 2 Way Remote) (See: Accessories and Optional Equipment/Antitheft and
Alarm Systems/Keyless Entry/Description and Operation/Keyless Entry System Description and Operation (Without Accessory 2 Way Remote)
)Keyless Entry System Description and Operation (With Accessory 2 Way Remote) (See: Accessories and Optional Equipment/Antitheft and
Alarm Systems/Keyless Entry/Description and Operation/Keyless Entry System Description and Operation (With Accessory 2 Way Remote))
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Monday, December 2, 2019
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2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 612
DTC Descriptors
DTC B2508 01
- Seat Heater Relay Circuit Short to Battery
DTC B2508 02
- Seat Heater Relay Circuit Short to Ground
Diagnostic Fault Information
Circuit/System Description
The front seat heating elements are controlled by a common high current relay internal to the heated seat module (HSM) and on the low side by
individual element control circuits. The HSM connects the seat heater element supply voltage circuits to a common reference point. This reference
point is biased to approximately 2.5 V. Before the HSM will allow heated seat operation, it checks to see if the heating element supply voltage
circuits and control circuits are shorted to ground or battery voltage. Once the HSM verifies that it is not closing to a shorted heating element, it
allows heated seat operation. After which it continues to monitor for a shorted circuit.
Conditions for Running the DTC
The HSM must be powered.
Conditions for Setting the DTC
B2508 02
Before the heated seats are activated, the HSM detects a short to ground on the seat heating element supply voltage circuit or control circuit.
B2508 01
Before the heated seats are activated, the HSM detects a short to battery voltage on the seat heating element supply voltage circuit or control circuit.
DTC Descriptors
DTC B2508 01
- Seat Heater Relay Circuit Short to Battery
DTC B2508 02
- Seat Heater Relay Circuit Short to Ground
Diagnostic Fault Information
Circuit/System Description
The front seat heating elements are controlled by a common high current relay internal to the heated seat module (HSM) and on the low side by
individual element control circuits. The HSM connects the seat heater element supply voltage circuits to a common reference point. This reference
point is biased to approximately 2.5 V. Before the HSM will allow heated seat operation, it checks to see if the heating element supply voltage
circuits and control circuits are shorted to ground or battery voltage. Once the HSM verifies that it is not closing to a shorted heating element, it
allows heated seat operation. After which it continues to monitor for a shorted circuit.
Conditions for Running the DTC
The HSM must be powered.
Conditions for Setting the DTC
B2508 02
Before the heated seats are activated, the HSM detects a short to ground on the seat heating element supply voltage circuit or control circuit.
B2508 01
Before the heated seats are activated, the HSM detects a short to battery voltage on the seat heating element supply voltage circuit or control circuit.
Sunday, November 24, 2019
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2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 435
DTC Descriptors
DTC B1395 03
- Device Voltage Reference Output 1 Circuit Voltage Below Threshold
DTC B1395 07
- Device Voltage Reference Output 1 Circuit Voltage Above Threshold
Diagnostic Fault Information
Circuit/System Description
Voltage for the interior backlighting components and stop lamp switch activation signal is supplied from the body control module (BCM). The
BCM applies a voltage reference through the instrument panel (I/P) dimming voltage reference circuit to the interior lamp dimming switch, which is
part of the headlamp switch. When the dimming switch is placed in the desired position, the dimmed voltage setting is applied from the interior
lamp dimming switch through the I/P dimming control circuit to the BCM. The BCM then applies the dimmed voltage to the I/P lamps supply
voltage circuit and they dim to the correct level.
The stop lamp switch is also supplied voltage on the same circuit for a stop lamp OFF signal to the BCM. When the stop lamp switch is activated
the voltage signal circuit to the BCM is opened prompting the BCM to illuminate the stop lamps.
Conditions for Running the DTC
* Battery voltage must be between 9-16 V.
* Ignition must be ON.
DTC Descriptors
DTC B1395 03
- Device Voltage Reference Output 1 Circuit Voltage Below Threshold
DTC B1395 07
- Device Voltage Reference Output 1 Circuit Voltage Above Threshold
Diagnostic Fault Information
Circuit/System Description
Voltage for the interior backlighting components and stop lamp switch activation signal is supplied from the body control module (BCM). The
BCM applies a voltage reference through the instrument panel (I/P) dimming voltage reference circuit to the interior lamp dimming switch, which is
part of the headlamp switch. When the dimming switch is placed in the desired position, the dimmed voltage setting is applied from the interior
lamp dimming switch through the I/P dimming control circuit to the BCM. The BCM then applies the dimmed voltage to the I/P lamps supply
voltage circuit and they dim to the correct level.
The stop lamp switch is also supplied voltage on the same circuit for a stop lamp OFF signal to the BCM. When the stop lamp switch is activated
the voltage signal circuit to the BCM is opened prompting the BCM to illuminate the stop lamps.
Conditions for Running the DTC
* Battery voltage must be between 9-16 V.
* Ignition must be ON.
Saturday, November 23, 2019
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 419
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 419
DTC Descriptors
DTC B1289 01
- Video Display Brightness Control Signal Short to Battery
DTC B1289 02
- Video Display Brightness Control Signal Short to Ground
DTC B1289 04
- Video Display Brightness Control Signal Open Circuit
Diagnostic Fault Information
Circuit/System Description
The radio can control the video display brightness on vehicles equipped with rear seat entertainment (RSE) video. The radio varies a pulse with
modulated (PWM) signal to the rear entertainment video screen to command the screen brightness to the desired level.
Conditions for Running the DTC
* Ignition ON.
* Battery voltage must be between 9-16 volts.
Conditions for Setting the DTC
The DTC will set when the radio detects a short to voltage, short to ground, or an open/high resistance in the video display brightness control
circuit 400 ms after the radio activates the remote enable circuit.
Action Taken When the DTC Sets
The radio sets the DTC and defaults the video display to full brightness.
Conditions for Clearing the DTC
* The condition responsible for setting the DTC no longer exists.
* A history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred.
Reference Information
Schematic Reference
Video System Schematics (See: Accessories and Optional Equipment/Diagrams/Electrical Diagrams/Video System Schematics)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Video Entertainment System Description and Operation (Non-Headrest DVD Systems) (See: Accessories and Optional Equipment/Description
and Operation/Video Entertainment System Description and Operation (Non-Headrest DVD Systems))Video Entertainment System Description
and Operation (Dual Headrest DVD Systems) (See: Accessories and Optional Equipment/Description and Operation/Video Entertainment System
Description and Operation (Dual Headrest DVD Systems))
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
DTC Descriptors
DTC B1289 01
- Video Display Brightness Control Signal Short to Battery
DTC B1289 02
- Video Display Brightness Control Signal Short to Ground
DTC B1289 04
- Video Display Brightness Control Signal Open Circuit
Diagnostic Fault Information
Circuit/System Description
The radio can control the video display brightness on vehicles equipped with rear seat entertainment (RSE) video. The radio varies a pulse with
modulated (PWM) signal to the rear entertainment video screen to command the screen brightness to the desired level.
Conditions for Running the DTC
* Ignition ON.
* Battery voltage must be between 9-16 volts.
Conditions for Setting the DTC
The DTC will set when the radio detects a short to voltage, short to ground, or an open/high resistance in the video display brightness control
circuit 400 ms after the radio activates the remote enable circuit.
Action Taken When the DTC Sets
The radio sets the DTC and defaults the video display to full brightness.
Conditions for Clearing the DTC
* The condition responsible for setting the DTC no longer exists.
* A history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred.
Reference Information
Schematic Reference
Video System Schematics (See: Accessories and Optional Equipment/Diagrams/Electrical Diagrams/Video System Schematics)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Video Entertainment System Description and Operation (Non-Headrest DVD Systems) (See: Accessories and Optional Equipment/Description
and Operation/Video Entertainment System Description and Operation (Non-Headrest DVD Systems))Video Entertainment System Description
and Operation (Dual Headrest DVD Systems) (See: Accessories and Optional Equipment/Description and Operation/Video Entertainment System
Description and Operation (Dual Headrest DVD Systems))
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Thursday, November 21, 2019
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 379
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 379
DTC Descriptors
DTC B1025 01
- Audio Output 1 Left Front Circuit Short to Battery
DTC B1025 02
- Audio Output 1 Left Front Circuit Short to Ground
DTC B1025 04
- Audio Output 1 Left Front Circuit Open
DTC B1035 01
- Audio Output 2 Right Front Circuit Short to Battery
DTC B1035 02
- Audio Output 2 Right Front Circuit Short to Ground
DTC B1035 04
- Audio Output 2 Right Front Circuit Open
DTC B1045 01
- Audio Output 3 Left Rear Circuit Short to Battery
DTC B1045 02
- Audio Output 3 Left Rear Circuit Short to Ground
DTC B1045 04
- Audio Output 3 Left Rear Circuit Open
DTC B1055 01
- Audio Output 4 Right Rear Circuit Short to Battery
DTC B1055 02
- Audio Output 4 Right Rear Circuit Short to Ground
DTC B1055 04
- Audio Output 4 Right Rear Circuit Open
DTC B1065 01
- Audio Output 5 Circuit Short to Battery (Center IP)
DTC B1065 02
- Audio Output 5 Circuit Short to Ground (Center IP)
DTC B1065 04
- Audio Output 5 Circuit Open (Center IP)
DTC B1075 01
- Audio Output 6 Circuit Short to Battery (Subwoofer)
DTC B1075 02
- Audio Output 6 Circuit Short to Ground (Subwoofer)
DTC B1075 04
- Audio Output 6 Circuit Open (Subwoofer)
DTC B1085 01
- Audio Output 7 Circuit Short to Battery (LR D-Pillar)
DTC B1085 02
- Audio Output 7 Circuit Short to Ground (LR D-Pillar)
DTC B1085 04
- Audio Output 7 Circuit Open (LR D-Pillar)
DTC B1095 01
- Audio Output 8 Circuit Short to Battery (RR D-Pillar)
DTC Descriptors
DTC B1025 01
- Audio Output 1 Left Front Circuit Short to Battery
DTC B1025 02
- Audio Output 1 Left Front Circuit Short to Ground
DTC B1025 04
- Audio Output 1 Left Front Circuit Open
DTC B1035 01
- Audio Output 2 Right Front Circuit Short to Battery
DTC B1035 02
- Audio Output 2 Right Front Circuit Short to Ground
DTC B1035 04
- Audio Output 2 Right Front Circuit Open
DTC B1045 01
- Audio Output 3 Left Rear Circuit Short to Battery
DTC B1045 02
- Audio Output 3 Left Rear Circuit Short to Ground
DTC B1045 04
- Audio Output 3 Left Rear Circuit Open
DTC B1055 01
- Audio Output 4 Right Rear Circuit Short to Battery
DTC B1055 02
- Audio Output 4 Right Rear Circuit Short to Ground
DTC B1055 04
- Audio Output 4 Right Rear Circuit Open
DTC B1065 01
- Audio Output 5 Circuit Short to Battery (Center IP)
DTC B1065 02
- Audio Output 5 Circuit Short to Ground (Center IP)
DTC B1065 04
- Audio Output 5 Circuit Open (Center IP)
DTC B1075 01
- Audio Output 6 Circuit Short to Battery (Subwoofer)
DTC B1075 02
- Audio Output 6 Circuit Short to Ground (Subwoofer)
DTC B1075 04
- Audio Output 6 Circuit Open (Subwoofer)
DTC B1085 01
- Audio Output 7 Circuit Short to Battery (LR D-Pillar)
DTC B1085 02
- Audio Output 7 Circuit Short to Ground (LR D-Pillar)
DTC B1085 04
- Audio Output 7 Circuit Open (LR D-Pillar)
DTC B1095 01
- Audio Output 8 Circuit Short to Battery (RR D-Pillar)
Monday, November 18, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 969
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 969
DTC Descriptors
DTC C0575 01
- Left Front Actuator Circuit - Short To Battery
DTC C0575 02
- Left Front Actuator Circuit - Short To Ground
DTC C0575 04
- Left Front Actuator Circuit - Open Circuit
DTC C0580 01
- Right Front Actuator Circuit - Short To Battery
DTC C0580 02
- Right Front Actuator Circuit - Short To Ground
DTC C0580 04
- Right Front Actuator Circuit - Open Circuit
DTC C0585 01
- Left Rear Actuator Circuit - Short To Battery
DTC C0585 02
- Left Rear Actuator Circuit - Short To Ground
DTC C0585 04
- Left Rear Actuator Circuit - Open Circuit
DTC C0590 01
- Right Rear Actuator Circuit - Short To Battery
DTC C0590 02
- Right Rear Actuator Circuit - Short To Ground
DTC C0590 04
- Right Rear Actuator Circuit - Open Circuit
Diagnostic Fault Information
Circuit/System Description
The electronic suspension control module (ESCM) commands variable levels of pulse width modulated current to each damper in response to rough
road, or abrupt steering maneuver driving conditions. The ESC module continuously compares each dampers command state with the state of their
feedback circuits to ensure they agree.
Conditions for Running the DTC
* Battery voltage is between 9-16 volts.
* Ignition ON for 30 seconds
Conditions for Setting the DTC
DTC Descriptors
DTC C0575 01
- Left Front Actuator Circuit - Short To Battery
DTC C0575 02
- Left Front Actuator Circuit - Short To Ground
DTC C0575 04
- Left Front Actuator Circuit - Open Circuit
DTC C0580 01
- Right Front Actuator Circuit - Short To Battery
DTC C0580 02
- Right Front Actuator Circuit - Short To Ground
DTC C0580 04
- Right Front Actuator Circuit - Open Circuit
DTC C0585 01
- Left Rear Actuator Circuit - Short To Battery
DTC C0585 02
- Left Rear Actuator Circuit - Short To Ground
DTC C0585 04
- Left Rear Actuator Circuit - Open Circuit
DTC C0590 01
- Right Rear Actuator Circuit - Short To Battery
DTC C0590 02
- Right Rear Actuator Circuit - Short To Ground
DTC C0590 04
- Right Rear Actuator Circuit - Open Circuit
Diagnostic Fault Information
Circuit/System Description
The electronic suspension control module (ESCM) commands variable levels of pulse width modulated current to each damper in response to rough
road, or abrupt steering maneuver driving conditions. The ESC module continuously compares each dampers command state with the state of their
feedback circuits to ensure they agree.
Conditions for Running the DTC
* Battery voltage is between 9-16 volts.
* Ignition ON for 30 seconds
Conditions for Setting the DTC
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 925
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 925
DTC Descriptors
DTC C0396 01
- Incremental Sensor Circuit Short to Battery
DTC C0396 02
- Incremental Sensor Circuit Short to Ground
DTC C0396 04
- Incremental Sensor Open Circuit
DTC C0396 05
- Incremental Sensor Circuit Short to Battery or Open
Diagnostic Fault Information
Circuit/System Description
The transfer case incremental position sensor (IPS) and the transfer case rotational position sensor (RPS) both send current transfer case
mode/range position to the transfer case shift control module (TCCM). Both sensors send this information as voltage signals which are converted to
degrees and rotational direction by the TCCM software. If the two sensors disagree by greater than a predetermined amount, the DTC will set.
The IPS receives an 8 volt reference signal from the TCCM and sends back a transfer case incremental position signal and an encoder rotational
direction signal.
The RPS (also known as the transfer case two/four wheel drive actuator position sensor) receives a 5 volt reference signal from the TCCM and
sends back a continuously variable pulse width modulated signal to the TCCM. This continuously variable signal indicates the position of the
transfer case actuator.
The IPS is more sensitive than the RPS, but needs to reference the RPS value at key-up and mode changes. The RPS is an absolute sensor. The
TCCM syncs the IPS with the RPS at key-up and mode changes.
The IPS is an integral part of the transfer case actuator and cannot be replaced independently.
The RPS is an independently replaceable part.
Conditions for Running the DTC
* Ignition ON.
* System voltage 10.5-18 V.
Conditions for Setting the DTC
C0396 01
Voltage on incremental encoder sensor 8 V supply circuit greater than 9.0 V.
C0396 02
Incremental encoder sensor 8 V supply circuit less than 1.5 V, or voltage on incremental encoder impulse signal circuit or incremental encoder
direction signal circuit less than 0.5 V.
C0396 04
Voltage on encoder 8 V supply circuit is 1.5-9.0 V and voltage read by low reference circuit less than 0.3 V.
C0396 05
Voltage on encoder signal circuits less than 0.3 V or greater than 4.6 V.
Action Taken When the DTC Sets
DTC Descriptors
DTC C0396 01
- Incremental Sensor Circuit Short to Battery
DTC C0396 02
- Incremental Sensor Circuit Short to Ground
DTC C0396 04
- Incremental Sensor Open Circuit
DTC C0396 05
- Incremental Sensor Circuit Short to Battery or Open
Diagnostic Fault Information
Circuit/System Description
The transfer case incremental position sensor (IPS) and the transfer case rotational position sensor (RPS) both send current transfer case
mode/range position to the transfer case shift control module (TCCM). Both sensors send this information as voltage signals which are converted to
degrees and rotational direction by the TCCM software. If the two sensors disagree by greater than a predetermined amount, the DTC will set.
The IPS receives an 8 volt reference signal from the TCCM and sends back a transfer case incremental position signal and an encoder rotational
direction signal.
The RPS (also known as the transfer case two/four wheel drive actuator position sensor) receives a 5 volt reference signal from the TCCM and
sends back a continuously variable pulse width modulated signal to the TCCM. This continuously variable signal indicates the position of the
transfer case actuator.
The IPS is more sensitive than the RPS, but needs to reference the RPS value at key-up and mode changes. The RPS is an absolute sensor. The
TCCM syncs the IPS with the RPS at key-up and mode changes.
The IPS is an integral part of the transfer case actuator and cannot be replaced independently.
The RPS is an independently replaceable part.
Conditions for Running the DTC
* Ignition ON.
* System voltage 10.5-18 V.
Conditions for Setting the DTC
C0396 01
Voltage on incremental encoder sensor 8 V supply circuit greater than 9.0 V.
C0396 02
Incremental encoder sensor 8 V supply circuit less than 1.5 V, or voltage on incremental encoder impulse signal circuit or incremental encoder
direction signal circuit less than 0.5 V.
C0396 04
Voltage on encoder 8 V supply circuit is 1.5-9.0 V and voltage read by low reference circuit less than 0.3 V.
C0396 05
Voltage on encoder signal circuits less than 0.3 V or greater than 4.6 V.
Action Taken When the DTC Sets
Saturday, November 16, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 771
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 771
DTC Descriptors
DTC B3821 00
- Left Rear Window Relay Power Circuit
DTC B3824 00
- Right Rear Window Relay Power Circuit
Diagnostic Fault Information
Circuit/System Description
The body control module (BCM) monitors the window lockout command from the driver door switch (DDS). When the rear window switch
operation is authorized, the the BCM signal voltage drops approximately 5 volts to the rear window switches allowing for normal window
operation from the rear switches. If the rear window lockout function is commanded, the BCM signal voltage is at B+ voltage which disables the
rear window switches and the rear windows will only operate when the BCM receives a command from the driver master control.
Conditions for Running the DTC
* Battery voltage is between 9-16 volts.
* The ignition is ON.
Conditions for Setting the DTC
B3821 00
The BCM detects a fault in the left rear window lockout circuit.
B3824 00
The BCM detects a fault in the right rear window lockout circuit.
Action Taken When the DTC Sets
The left or right rear power window will be inoperative.
Conditions for Clearing the DTC
DTC Descriptors
DTC B3821 00
- Left Rear Window Relay Power Circuit
DTC B3824 00
- Right Rear Window Relay Power Circuit
Diagnostic Fault Information
Circuit/System Description
The body control module (BCM) monitors the window lockout command from the driver door switch (DDS). When the rear window switch
operation is authorized, the the BCM signal voltage drops approximately 5 volts to the rear window switches allowing for normal window
operation from the rear switches. If the rear window lockout function is commanded, the BCM signal voltage is at B+ voltage which disables the
rear window switches and the rear windows will only operate when the BCM receives a command from the driver master control.
Conditions for Running the DTC
* Battery voltage is between 9-16 volts.
* The ignition is ON.
Conditions for Setting the DTC
B3821 00
The BCM detects a fault in the left rear window lockout circuit.
B3824 00
The BCM detects a fault in the right rear window lockout circuit.
Action Taken When the DTC Sets
The left or right rear power window will be inoperative.
Conditions for Clearing the DTC
Friday, November 15, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 659
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 659
DTC Descriptors
DTC B2540 02
- Rear Fog Lamp Control Circuit Short to Ground
DTC B2540 05
- Rear Fog Lamp Control Circuit Short to Battery or Open
Diagnostic Fault Information
Circuit/System Description
When the rear fog lamp switch is placed in the ON position, ground is applied to the auxiliary body control module (XBCM) through the rear fog
lamp switch circuit. The XBCM then applies voltage to the rear fog lamp control circuit to the rear fog lamp.
Conditions for Running the DTC
* Battery voltage must be between 9-16 V.
* Rear fog lamps ON.
Conditions for Setting the DTC
B2540 02
The BCM detects a short to ground in the rear fog lamp switch signal circuit.
B2540 05
The BCM detects a short to voltage or an open/high resistance in the rear fog lamp switch signal circuit.
Action Taken When the DTC Sets
The rear fog lamps will not operate when the park lamps are ON and the rear fog lamp switch is active.
Conditions for Clearing the DTC
* The condition responsible for setting the DTC no longer exists.
* A history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred.
Reference Information
Schematic Reference
Fog Lights Schematics (See: Diagrams/Electrical Diagrams/Lighting and Horns/System Diagram/Fog Lights Schematics)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Exterior Lighting Systems Description and Operation (See: Lighting and Horns/Description and Operation/Exterior Lighting Systems Description
and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
DTC Descriptors
DTC B2540 02
- Rear Fog Lamp Control Circuit Short to Ground
DTC B2540 05
- Rear Fog Lamp Control Circuit Short to Battery or Open
Diagnostic Fault Information
Circuit/System Description
When the rear fog lamp switch is placed in the ON position, ground is applied to the auxiliary body control module (XBCM) through the rear fog
lamp switch circuit. The XBCM then applies voltage to the rear fog lamp control circuit to the rear fog lamp.
Conditions for Running the DTC
* Battery voltage must be between 9-16 V.
* Rear fog lamps ON.
Conditions for Setting the DTC
B2540 02
The BCM detects a short to ground in the rear fog lamp switch signal circuit.
B2540 05
The BCM detects a short to voltage or an open/high resistance in the rear fog lamp switch signal circuit.
Action Taken When the DTC Sets
The rear fog lamps will not operate when the park lamps are ON and the rear fog lamp switch is active.
Conditions for Clearing the DTC
* The condition responsible for setting the DTC no longer exists.
* A history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred.
Reference Information
Schematic Reference
Fog Lights Schematics (See: Diagrams/Electrical Diagrams/Lighting and Horns/System Diagram/Fog Lights Schematics)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Exterior Lighting Systems Description and Operation (See: Lighting and Horns/Description and Operation/Exterior Lighting Systems Description
and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Wednesday, November 13, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 461
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 461
DTC Descriptors
DTC B1395 03
- Device Voltage Reference Output 1 Circuit Voltage Below Threshold
DTC B1395 07
- Device Voltage Reference Output 1 Circuit Voltage Above Threshold
Diagnostic Fault Information
Circuit/System Description
Voltage for the interior backlighting components and stop lamp switch activation signal is supplied from the body control module (BCM). The
BCM applies a voltage reference through the instrument panel (I/P) dimming voltage reference circuit to the interior lamp dimming switch, which is
part of the headlamp switch. When the dimming switch is placed in the desired position, the dimmed voltage setting is applied from the interior
lamp dimming switch through the I/P dimming control circuit to the BCM. The BCM then applies the dimmed voltage to the I/P lamps supply
voltage circuit and they dim to the correct level.
The stop lamp switch is also supplied voltage on the same circuit for a stop lamp OFF signal to the BCM. When the stop lamp switch is activated
the voltage signal circuit to the BCM is opened prompting the BCM to illuminate the stop lamps.
Conditions for Running the DTC
* Battery voltage must be between 9-16 V.
* Ignition must be ON.
DTC Descriptors
DTC B1395 03
- Device Voltage Reference Output 1 Circuit Voltage Below Threshold
DTC B1395 07
- Device Voltage Reference Output 1 Circuit Voltage Above Threshold
Diagnostic Fault Information
Circuit/System Description
Voltage for the interior backlighting components and stop lamp switch activation signal is supplied from the body control module (BCM). The
BCM applies a voltage reference through the instrument panel (I/P) dimming voltage reference circuit to the interior lamp dimming switch, which is
part of the headlamp switch. When the dimming switch is placed in the desired position, the dimmed voltage setting is applied from the interior
lamp dimming switch through the I/P dimming control circuit to the BCM. The BCM then applies the dimmed voltage to the I/P lamps supply
voltage circuit and they dim to the correct level.
The stop lamp switch is also supplied voltage on the same circuit for a stop lamp OFF signal to the BCM. When the stop lamp switch is activated
the voltage signal circuit to the BCM is opened prompting the BCM to illuminate the stop lamps.
Conditions for Running the DTC
* Battery voltage must be between 9-16 V.
* Ignition must be ON.
Sunday, November 10, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 254
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 254
DTC Descriptors
DTC B153E 02
- Liftgate Position Sensor Signal Circuit Short to Ground
DTC B153E 05
- Liftgate Position Sensor Signal Circuit Short to Battery or Open
DTC B153E 08
- Liftgate Position Sensor Signal Circuit Signal Invalid
Diagnostic Fault Information
Circuit/System Description
The liftgate control module (LGM) continuously monitors power liftgate operation and calculates its location and direction of travel using 2 Hall
effect sensors that are part of the gear motor assembly. The Hall effect sensors are 5-volt 3-wire sensors and are supplied with a 5-volt power,
ground and signal circuits from the LGM. The Hall effect sensor signal circuits are referenced from voltage within the LGM and pulsed low by the
Hall effect sensors.
Conditions for Running the DTC
The system voltage is 9-16 volts.
Conditions for Setting the DTC
B153E 02
The LGM detects a short to ground in the liftgate motor assembly position sensor circuit.
B153E 05
The LGM detects a short to voltage or an open/high resistance in the liftgate motor assembly position sensor circuit.
DTC Descriptors
DTC B153E 02
- Liftgate Position Sensor Signal Circuit Short to Ground
DTC B153E 05
- Liftgate Position Sensor Signal Circuit Short to Battery or Open
DTC B153E 08
- Liftgate Position Sensor Signal Circuit Signal Invalid
Diagnostic Fault Information
Circuit/System Description
The liftgate control module (LGM) continuously monitors power liftgate operation and calculates its location and direction of travel using 2 Hall
effect sensors that are part of the gear motor assembly. The Hall effect sensors are 5-volt 3-wire sensors and are supplied with a 5-volt power,
ground and signal circuits from the LGM. The Hall effect sensor signal circuits are referenced from voltage within the LGM and pulsed low by the
Hall effect sensors.
Conditions for Running the DTC
The system voltage is 9-16 volts.
Conditions for Setting the DTC
B153E 02
The LGM detects a short to ground in the liftgate motor assembly position sensor circuit.
B153E 05
The LGM detects a short to voltage or an open/high resistance in the liftgate motor assembly position sensor circuit.
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 245
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 245
DTC Descriptors
DTC B137A 01
- Hybrid Accessory Wake Up Circuit - Short to Battery
DTC B137A 06
- Hybrid Accessory Wake Up Circuit - Short to Ground or Open
Diagnostic Fault Information
Circuit/System Description
Modules connected to the high and low speed GMLAN serial data circuits monitor for serial data communications during normal vehicle operation.
Operating information and commands are exchanged among the modules. The modules have prerecorded information about what messages are
needed to be exchanged on the serial data circuits, for each virtual network. The messages are supervised and also, some periodic messages are
used by the receiver module as an availability indication of the transmitter module. Each message contains the identification number of the
transmitter module.
The wake up signal circuit is energized by the serial data gateway (SDG) module to activate the drive motor generator power inverter module
(PIM) and the drive motor generator battery control module. If the wake up signal is not responded to by all three modules, this DTC sets in the
SDG module.
Conditions for Running the DTC
* The system voltage is between 9-16 volts.
* The vehicle power mode master requires serial data communication to occur.
Conditions for Setting the DTC
A short circuit exists on the wake up signal circuit of the SDG module.
Action Taken When the DTC Sets
The malfunction indicator lamp (MIL) illuminates and the driver information center (DIC) displays the message Service Hybrid System.
Conditions for Clearing the DTC
* A current DTC clears when the malfunction is no longer present.
* A history DTC clears when the module ignition cycle counter reaches the reset threshold of 50, without a repeat of the malfunction.
Reference Information
Schematic Reference
* Data Communication Schematics (See: Powertrain Management/Computers and Control Systems/Information Bus/Diagrams/Electrical
Diagrams)
* Hybrid Controls Schematics ()
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Data Link Communications Description and Operation (See: Powertrain Management/Computers and Control Systems/Information
Bus/Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
DTC Descriptors
DTC B137A 01
- Hybrid Accessory Wake Up Circuit - Short to Battery
DTC B137A 06
- Hybrid Accessory Wake Up Circuit - Short to Ground or Open
Diagnostic Fault Information
Circuit/System Description
Modules connected to the high and low speed GMLAN serial data circuits monitor for serial data communications during normal vehicle operation.
Operating information and commands are exchanged among the modules. The modules have prerecorded information about what messages are
needed to be exchanged on the serial data circuits, for each virtual network. The messages are supervised and also, some periodic messages are
used by the receiver module as an availability indication of the transmitter module. Each message contains the identification number of the
transmitter module.
The wake up signal circuit is energized by the serial data gateway (SDG) module to activate the drive motor generator power inverter module
(PIM) and the drive motor generator battery control module. If the wake up signal is not responded to by all three modules, this DTC sets in the
SDG module.
Conditions for Running the DTC
* The system voltage is between 9-16 volts.
* The vehicle power mode master requires serial data communication to occur.
Conditions for Setting the DTC
A short circuit exists on the wake up signal circuit of the SDG module.
Action Taken When the DTC Sets
The malfunction indicator lamp (MIL) illuminates and the driver information center (DIC) displays the message Service Hybrid System.
Conditions for Clearing the DTC
* A current DTC clears when the malfunction is no longer present.
* A history DTC clears when the module ignition cycle counter reaches the reset threshold of 50, without a repeat of the malfunction.
Reference Information
Schematic Reference
* Data Communication Schematics (See: Powertrain Management/Computers and Control Systems/Information Bus/Diagrams/Electrical
Diagrams)
* Hybrid Controls Schematics ()
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Data Link Communications Description and Operation (See: Powertrain Management/Computers and Control Systems/Information
Bus/Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Saturday, November 9, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1480
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1480
DTC Descriptors
DTC P0B3D
- Hybrid Battery 1 Circuit Low Voltage
DTC P0B42
- Hybrid Battery 2 Circuit Low Voltage
DTC P0B47
- Hybrid Battery 3 Circuit Low Voltage
DTC P0B4C
- Hybrid Battery 4 Circuit Low Voltage
DTC P0B51
- Hybrid Battery 5 Circuit Low Voltage
DTC P0B56
- Hybrid Battery 6 Circuit Low Voltage
DTC P0B5B
- Hybrid Battery 7 Circuit Low Voltage
DTC P0B60
- Hybrid Battery 8 Circuit Low Voltage
DTC P0B65
- Hybrid Battery 9 Circuit Low Voltage
DTC P0B6A
- Hybrid Battery 10 Circuit Low Voltage
DTC P0B6F
- Hybrid Battery 11 Circuit Low Voltage
DTC P0B74
- Hybrid Battery 12 Circuit Low Voltage
DTC P0B79
- Hybrid Battery 13 Circuit Low Voltage
DTC P0B7E
- Hybrid Battery 14 Circuit Low Voltage
DTC P0B83
- Hybrid Battery 15 Circuit Low Voltage
DTC P0B88
- Hybrid Battery 16 Circuit Low Voltage
DTC P0B8D
- Hybrid Battery 17 Circuit Low Voltage
DTC P0B92
- Hybrid Battery 18 Circuit Low Voltage
DTC P0B97
- Hybrid Battery 19 Circuit Low Voltage
DTC P0B9C
- Hybrid Battery 20 Circuit Low Voltage
Circuit/System Description
The system contains twenty battery modules. Each module contains two 7.2 V cells for a total nominal system voltage of 288 V. Each battery
module is rated at 14.4 V direct current (DC) and all the modules are connected together in series. The drive motor generator battery is also referred
to as the hybrid battery. The drive motor generator battery control module is also referred to as the battery energy control module (BECM). The
drive motor generator battery control module monitors the hybrid battery voltage on the twenty battery modules. The drive motor generator battery
control module determines the actual terminal voltage by monitoring the output voltage from the high voltage contactors.
DTC Descriptors
DTC P0B3D
- Hybrid Battery 1 Circuit Low Voltage
DTC P0B42
- Hybrid Battery 2 Circuit Low Voltage
DTC P0B47
- Hybrid Battery 3 Circuit Low Voltage
DTC P0B4C
- Hybrid Battery 4 Circuit Low Voltage
DTC P0B51
- Hybrid Battery 5 Circuit Low Voltage
DTC P0B56
- Hybrid Battery 6 Circuit Low Voltage
DTC P0B5B
- Hybrid Battery 7 Circuit Low Voltage
DTC P0B60
- Hybrid Battery 8 Circuit Low Voltage
DTC P0B65
- Hybrid Battery 9 Circuit Low Voltage
DTC P0B6A
- Hybrid Battery 10 Circuit Low Voltage
DTC P0B6F
- Hybrid Battery 11 Circuit Low Voltage
DTC P0B74
- Hybrid Battery 12 Circuit Low Voltage
DTC P0B79
- Hybrid Battery 13 Circuit Low Voltage
DTC P0B7E
- Hybrid Battery 14 Circuit Low Voltage
DTC P0B83
- Hybrid Battery 15 Circuit Low Voltage
DTC P0B88
- Hybrid Battery 16 Circuit Low Voltage
DTC P0B8D
- Hybrid Battery 17 Circuit Low Voltage
DTC P0B92
- Hybrid Battery 18 Circuit Low Voltage
DTC P0B97
- Hybrid Battery 19 Circuit Low Voltage
DTC P0B9C
- Hybrid Battery 20 Circuit Low Voltage
Circuit/System Description
The system contains twenty battery modules. Each module contains two 7.2 V cells for a total nominal system voltage of 288 V. Each battery
module is rated at 14.4 V direct current (DC) and all the modules are connected together in series. The drive motor generator battery is also referred
to as the hybrid battery. The drive motor generator battery control module is also referred to as the battery energy control module (BECM). The
drive motor generator battery control module monitors the hybrid battery voltage on the twenty battery modules. The drive motor generator battery
control module determines the actual terminal voltage by monitoring the output voltage from the high voltage contactors.
Thursday, November 7, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1332
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1332
DTC Descriptors
DTC P0B3D
- Hybrid Battery 1 Circuit Low Voltage
DTC P0B42
- Hybrid Battery 2 Circuit Low Voltage
DTC P0B47
- Hybrid Battery 3 Circuit Low Voltage
DTC P0B4C
- Hybrid Battery 4 Circuit Low Voltage
DTC P0B51
- Hybrid Battery 5 Circuit Low Voltage
DTC P0B56
- Hybrid Battery 6 Circuit Low Voltage
DTC P0B5B
- Hybrid Battery 7 Circuit Low Voltage
DTC P0B60
- Hybrid Battery 8 Circuit Low Voltage
DTC P0B65
- Hybrid Battery 9 Circuit Low Voltage
DTC P0B6A
- Hybrid Battery 10 Circuit Low Voltage
DTC P0B6F
- Hybrid Battery 11 Circuit Low Voltage
DTC P0B74
- Hybrid Battery 12 Circuit Low Voltage
DTC P0B79
- Hybrid Battery 13 Circuit Low Voltage
DTC P0B7E
- Hybrid Battery 14 Circuit Low Voltage
DTC P0B83
- Hybrid Battery 15 Circuit Low Voltage
DTC P0B88
- Hybrid Battery 16 Circuit Low Voltage
DTC P0B8D
- Hybrid Battery 17 Circuit Low Voltage
DTC P0B92
- Hybrid Battery 18 Circuit Low Voltage
DTC P0B97
- Hybrid Battery 19 Circuit Low Voltage
DTC P0B9C
- Hybrid Battery 20 Circuit Low Voltage
Circuit/System Description
The system contains twenty battery modules. Each module contains two 7.2 V cells for a total nominal system voltage of 288 V. Each battery
module is rated at 14.4 V direct current (DC) and all the modules are connected together in series. The drive motor generator battery is also referred
to as the hybrid battery. The drive motor generator battery control module is also referred to as the battery energy control module (BECM). The
drive motor generator battery control module monitors the hybrid battery voltage on the twenty battery modules. The drive motor generator battery
control module determines the actual terminal voltage by monitoring the output voltage from the high voltage contactors.
DTC Descriptors
DTC P0B3D
- Hybrid Battery 1 Circuit Low Voltage
DTC P0B42
- Hybrid Battery 2 Circuit Low Voltage
DTC P0B47
- Hybrid Battery 3 Circuit Low Voltage
DTC P0B4C
- Hybrid Battery 4 Circuit Low Voltage
DTC P0B51
- Hybrid Battery 5 Circuit Low Voltage
DTC P0B56
- Hybrid Battery 6 Circuit Low Voltage
DTC P0B5B
- Hybrid Battery 7 Circuit Low Voltage
DTC P0B60
- Hybrid Battery 8 Circuit Low Voltage
DTC P0B65
- Hybrid Battery 9 Circuit Low Voltage
DTC P0B6A
- Hybrid Battery 10 Circuit Low Voltage
DTC P0B6F
- Hybrid Battery 11 Circuit Low Voltage
DTC P0B74
- Hybrid Battery 12 Circuit Low Voltage
DTC P0B79
- Hybrid Battery 13 Circuit Low Voltage
DTC P0B7E
- Hybrid Battery 14 Circuit Low Voltage
DTC P0B83
- Hybrid Battery 15 Circuit Low Voltage
DTC P0B88
- Hybrid Battery 16 Circuit Low Voltage
DTC P0B8D
- Hybrid Battery 17 Circuit Low Voltage
DTC P0B92
- Hybrid Battery 18 Circuit Low Voltage
DTC P0B97
- Hybrid Battery 19 Circuit Low Voltage
DTC P0B9C
- Hybrid Battery 20 Circuit Low Voltage
Circuit/System Description
The system contains twenty battery modules. Each module contains two 7.2 V cells for a total nominal system voltage of 288 V. Each battery
module is rated at 14.4 V direct current (DC) and all the modules are connected together in series. The drive motor generator battery is also referred
to as the hybrid battery. The drive motor generator battery control module is also referred to as the battery energy control module (BECM). The
drive motor generator battery control module monitors the hybrid battery voltage on the twenty battery modules. The drive motor generator battery
control module determines the actual terminal voltage by monitoring the output voltage from the high voltage contactors.
Wednesday, November 6, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1248
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1248
DTC Descriptors
DTC P0A81
- Hybrid Battery Pack Cooling Fan Control Circuit
DTC P0BC1
- Hybrid Battery Pack Cooling Fan Positive Voltage Control Circuit High Voltage
Diagnostic Fault Information
Circuit/System Description
The drive motor generator battery is cooled by a drive motor battery vent fan motor. The battery vent fan motor and battery vent fan relay are
located inside the drive motor generator battery assembly. B+ to the battery vent fan is provided from the battery vent fan relay when the drive
motor generator battery control module (BECM) supplies a ground to the battery vent fan relay. A ground wire from the battery vent fan motor
assembly completes the path to case ground. A 5 V circuit is provided from the battery vent fan motor assembly, to the drive motor generator
battery control module. The drive motor generator battery control module uses a pulse width modulated (PWM) signal on the 5 V circuit to control
the battery vent fan motor duty cycle. The drive motor generator battery control module uses 4 battery temperature sensors, one air inlet duct and
one air outlet temperature sensor to control battery vent fan motor operation and speed.
Conditions for Running the DTC
P0A81
* The ignition is ON.
* Battery voltage is 9-18 V.
* The fan speed is commanded 35 percent or greater.
P0BC1
* The ignition is ON.
* Battery voltage is 9-18 V.
* The fan has transitioned from either ON to OFF or from OFF to ON.
Conditions for Setting the DTC
P0A81
Fan control signal monitor voltage to the drive motor generator battery control module is greater than 2.3 V or less than 0.5 V for 5 seconds.
P0BC1
The fan speed control circuit is greater than 0.9 V for 1 second.
Action Taken When the DTC Sets
DTCs P0A81 and P0BC1 are type B DTCs.
Conditions for Clearing the DTC
DTCs P0A81 and P0BC1 are type B DTCs.
Reference Information
Schematic Reference
Hybrid Cooling Schematics ()
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Drive Motor Generator Battery Cooling Description ()
DTC Descriptors
DTC P0A81
- Hybrid Battery Pack Cooling Fan Control Circuit
DTC P0BC1
- Hybrid Battery Pack Cooling Fan Positive Voltage Control Circuit High Voltage
Diagnostic Fault Information
Circuit/System Description
The drive motor generator battery is cooled by a drive motor battery vent fan motor. The battery vent fan motor and battery vent fan relay are
located inside the drive motor generator battery assembly. B+ to the battery vent fan is provided from the battery vent fan relay when the drive
motor generator battery control module (BECM) supplies a ground to the battery vent fan relay. A ground wire from the battery vent fan motor
assembly completes the path to case ground. A 5 V circuit is provided from the battery vent fan motor assembly, to the drive motor generator
battery control module. The drive motor generator battery control module uses a pulse width modulated (PWM) signal on the 5 V circuit to control
the battery vent fan motor duty cycle. The drive motor generator battery control module uses 4 battery temperature sensors, one air inlet duct and
one air outlet temperature sensor to control battery vent fan motor operation and speed.
Conditions for Running the DTC
P0A81
* The ignition is ON.
* Battery voltage is 9-18 V.
* The fan speed is commanded 35 percent or greater.
P0BC1
* The ignition is ON.
* Battery voltage is 9-18 V.
* The fan has transitioned from either ON to OFF or from OFF to ON.
Conditions for Setting the DTC
P0A81
Fan control signal monitor voltage to the drive motor generator battery control module is greater than 2.3 V or less than 0.5 V for 5 seconds.
P0BC1
The fan speed control circuit is greater than 0.9 V for 1 second.
Action Taken When the DTC Sets
DTCs P0A81 and P0BC1 are type B DTCs.
Conditions for Clearing the DTC
DTCs P0A81 and P0BC1 are type B DTCs.
Reference Information
Schematic Reference
Hybrid Cooling Schematics ()
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Drive Motor Generator Battery Cooling Description ()
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