2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 874
* Ignition voltage is greater than 9.5 volts.
* No wheel speed sensor faults exist.
* Brake is not applied.
* Vehicle is not cornering.
* No wheel spinning is detected.
Conditions for Setting the DTC
Wheel speed differences between one wheel and the others is greater than 25 percent.
Action Taken When the DTC Sets
* Antilock brake system (ABS), traction control system (TCS) and vehicle stability enhancement system (VSES) are disabled for the remainder
of the ignition cycle.
* The ABS and Stabilitrak indicator turns ON.
* The service Traction Control and Stabilitrak displays on the DIC.
Conditions for Clearing the DTC
* The DTC becomes history when the conditions for setting the DTC are no longer present.
* The history DTC clears after 100 malfunction-free ignition cycles.
* The EBCM receives a clear code command from the scan tool.
Diagnostic Aids
* Faulty wheel speed sensor will not set this DTC.
* A vehicle using a space saver spare will not set this code.
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
Circuit/System Verification
Inspect for one tire that has improper air pressure or improper size.
C0252
DTC C0252
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Showing posts with label * Ignition voltage is greater than 9.5 volts.. Show all posts
Showing posts with label * Ignition voltage is greater than 9.5 volts.. Show all posts
Sunday, November 17, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 831
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 831
* Ignition voltage is greater than 9.5 volts.
* The brake pedal is not pressed.
* A DTC is not set for the other wheel speed sensor on the same axle.
Conditions for Setting the DTC
C0035 00-C0050 00
* A short to ground, or an open/high resistance is detected on the wheel speed sensor 12-volt reference circuit.
* A short to voltage, short to ground or an open/high resistance is detected on the signal circuit.
* Wheel speed sensor power supply is less than 7.6 volts.
* A missing wheel speed sensor signal
C0035 5A-C0050 5A
An erratic signal output of the wheel speed sensor is detected.
Actions Taken when the DTC Sets
* The EBCM disables the antilock brake system (ABS)/traction control system and vehicle stability enhancement system (VSES) for the
duration of the ignition cycle.
* The ABS indicator illuminates.
* The StabiliTrak indicator illuminates.
* The EBCM disables the voltage to the wheel speed sensor the fault is detected on.
Conditions for Clearing the DTC
* A current DTC clears when the diagnostic runs and passes.
* A history DTC clears after 100 consecutive ignition cycles, if no failures are reported by this diagnostic.
Diagnostic Aids
* Inspect the back of the wheel bearing on the encoder surface for metal debris that could cause an erratic reading with the sensor. Do not use a
magnet to clean the debris, or damage to the encoder ring may occur.
* If 2 or more wheel speed sensors are inoperative diagnose each wheel speed sensor individually.
* An ECE 13 response may be required, after repairs are made, and DTCs are cleared, operate the vehicle at speeds greater than 15 km/h (10
mph) to complete the self test, and the EBCM will turn off the ABS indicator.
If the customer comments that the ABS indicator is ON only during moist environmental conditions: rain, snow, vehicle wash, etc., inspect the
wheel speed sensor wiring for signs of water intrusion. If the DTC is not current, clear all DTCs and simulate the effects of water intrusion by using
the following procedure:
1. Spray the suspected area with a 5 percent saltwater solution. To create a 5 percent saltwater solution, add 2 teaspoons of salt to 8 fl oz of
water (10 g of salt to 200 ml of water).
2. Test drive the vehicle over various road surfaces: bumps, turns, above 40 km/h (25 mph) for at least 30 seconds.
3. Rinse the area thoroughly when completed.
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)
* Ignition voltage is greater than 9.5 volts.
* The brake pedal is not pressed.
* A DTC is not set for the other wheel speed sensor on the same axle.
Conditions for Setting the DTC
C0035 00-C0050 00
* A short to ground, or an open/high resistance is detected on the wheel speed sensor 12-volt reference circuit.
* A short to voltage, short to ground or an open/high resistance is detected on the signal circuit.
* Wheel speed sensor power supply is less than 7.6 volts.
* A missing wheel speed sensor signal
C0035 5A-C0050 5A
An erratic signal output of the wheel speed sensor is detected.
Actions Taken when the DTC Sets
* The EBCM disables the antilock brake system (ABS)/traction control system and vehicle stability enhancement system (VSES) for the
duration of the ignition cycle.
* The ABS indicator illuminates.
* The StabiliTrak indicator illuminates.
* The EBCM disables the voltage to the wheel speed sensor the fault is detected on.
Conditions for Clearing the DTC
* A current DTC clears when the diagnostic runs and passes.
* A history DTC clears after 100 consecutive ignition cycles, if no failures are reported by this diagnostic.
Diagnostic Aids
* Inspect the back of the wheel bearing on the encoder surface for metal debris that could cause an erratic reading with the sensor. Do not use a
magnet to clean the debris, or damage to the encoder ring may occur.
* If 2 or more wheel speed sensors are inoperative diagnose each wheel speed sensor individually.
* An ECE 13 response may be required, after repairs are made, and DTCs are cleared, operate the vehicle at speeds greater than 15 km/h (10
mph) to complete the self test, and the EBCM will turn off the ABS indicator.
If the customer comments that the ABS indicator is ON only during moist environmental conditions: rain, snow, vehicle wash, etc., inspect the
wheel speed sensor wiring for signs of water intrusion. If the DTC is not current, clear all DTCs and simulate the effects of water intrusion by using
the following procedure:
1. Spray the suspected area with a 5 percent saltwater solution. To create a 5 percent saltwater solution, add 2 teaspoons of salt to 8 fl oz of
water (10 g of salt to 200 ml of water).
2. Test drive the vehicle over various road surfaces: bumps, turns, above 40 km/h (25 mph) for at least 30 seconds.
3. Rinse the area thoroughly when completed.
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)
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 816
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 816
* Ignition voltage is greater than 9.5 volts.
* The brake pedal is not pressed.
* A DTC is not set for the other wheel speed sensor on the same axle.
Conditions for Setting the DTC
C0035 00-C0050 00
* A short to ground, or an open/high resistance is detected on the wheel speed sensor 12-volt reference circuit.
* A short to voltage, short to ground or an open/high resistance is detected on the signal circuit.
* Wheel speed sensor power supply is less than 7.6 volts.
* A missing wheel speed sensor signal
C0035 5A-C0050 5A
An erratic signal output of the wheel speed sensor is detected.
Actions Taken when the DTC Sets
* The EBCM disables the antilock brake system (ABS)/traction control system and vehicle stability enhancement system (VSES) for the
duration of the ignition cycle.
* The ABS indicator illuminates.
* The StabiliTrak indicator illuminates.
* The EBCM disables the voltage to the wheel speed sensor the fault is detected on.
Conditions for Clearing the DTC
* A current DTC clears when the diagnostic runs and passes.
* A history DTC clears after 100 consecutive ignition cycles, if no failures are reported by this diagnostic.
Diagnostic Aids
* Inspect the back of the wheel bearing on the encoder surface for metal debris that could cause an erratic reading with the sensor. Do not use a
magnet to clean the debris, or damage to the encoder ring may occur.
* If 2 or more wheel speed sensors are inoperative diagnose each wheel speed sensor individually.
* An ECE 13 response may be required, after repairs are made, and DTCs are cleared, operate the vehicle at speeds greater than 15 km/h (10
mph) to complete the self test, and the EBCM will turn off the ABS indicator.
If the customer comments that the ABS indicator is ON only during moist environmental conditions: rain, snow, vehicle wash, etc., inspect the
wheel speed sensor wiring for signs of water intrusion. If the DTC is not current, clear all DTCs and simulate the effects of water intrusion by using
the following procedure:
1. Spray the suspected area with a 5 percent saltwater solution. To create a 5 percent saltwater solution, add 2 teaspoons of salt to 8 fl oz of
water (10 g of salt to 200 ml of water).
2. Test drive the vehicle over various road surfaces: bumps, turns, above 40 km/h (25 mph) for at least 30 seconds.
3. Rinse the area thoroughly when completed.
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)
* Ignition voltage is greater than 9.5 volts.
* The brake pedal is not pressed.
* A DTC is not set for the other wheel speed sensor on the same axle.
Conditions for Setting the DTC
C0035 00-C0050 00
* A short to ground, or an open/high resistance is detected on the wheel speed sensor 12-volt reference circuit.
* A short to voltage, short to ground or an open/high resistance is detected on the signal circuit.
* Wheel speed sensor power supply is less than 7.6 volts.
* A missing wheel speed sensor signal
C0035 5A-C0050 5A
An erratic signal output of the wheel speed sensor is detected.
Actions Taken when the DTC Sets
* The EBCM disables the antilock brake system (ABS)/traction control system and vehicle stability enhancement system (VSES) for the
duration of the ignition cycle.
* The ABS indicator illuminates.
* The StabiliTrak indicator illuminates.
* The EBCM disables the voltage to the wheel speed sensor the fault is detected on.
Conditions for Clearing the DTC
* A current DTC clears when the diagnostic runs and passes.
* A history DTC clears after 100 consecutive ignition cycles, if no failures are reported by this diagnostic.
Diagnostic Aids
* Inspect the back of the wheel bearing on the encoder surface for metal debris that could cause an erratic reading with the sensor. Do not use a
magnet to clean the debris, or damage to the encoder ring may occur.
* If 2 or more wheel speed sensors are inoperative diagnose each wheel speed sensor individually.
* An ECE 13 response may be required, after repairs are made, and DTCs are cleared, operate the vehicle at speeds greater than 15 km/h (10
mph) to complete the self test, and the EBCM will turn off the ABS indicator.
If the customer comments that the ABS indicator is ON only during moist environmental conditions: rain, snow, vehicle wash, etc., inspect the
wheel speed sensor wiring for signs of water intrusion. If the DTC is not current, clear all DTCs and simulate the effects of water intrusion by using
the following procedure:
1. Spray the suspected area with a 5 percent saltwater solution. To create a 5 percent saltwater solution, add 2 teaspoons of salt to 8 fl oz of
water (10 g of salt to 200 ml of water).
2. Test drive the vehicle over various road surfaces: bumps, turns, above 40 km/h (25 mph) for at least 30 seconds.
3. Rinse the area thoroughly when completed.
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)
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