2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 2011
* The ignition is ON
* DTCs P181C-P181F, P1824, P182A-P182F, P183A-P183E, P1838, P1839, P184A, or P184B are not set.
Conditions for Setting the DTC
The IMS Direction State does not match the IMS Range State.
Action Taken When the DTC Sets
DTC P183F is a Type A DTC.
Conditions for Clearing the DTC
DTC P183F is a Type A DTC.
Diagnostic Aids
* The direction IMS assembly can be damaged by electric current exceeding 25 mA. Test the IMS assembly for an open condition whenever a
short to voltage condition is observed.
* The direction IMS is a non-serviceable part of the manual shift shaft position switch.
Reference Information
Schematic Reference
Hybrid Controls Schematics ()
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
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 Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code
(DTC) Type Definitions)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Special Tools
* DT-47825-10 Jumper Harness
* DT-48493 Jumper Harness
Circuit/System Verification
1. Clear the DTC information.
2. Turn the ignition OFF for 1 minute.
3. Turn the ignition ON.
4. Test for correct operation of the direction and range IMS switch circuits in every gear selection. Hold the selector in each gear position for at
least 2 seconds. Refer to Typical Scan Tool Data.
瀚慖f the Direction IMS operation does not match the logic table proceed with Circuit/System Testing.
瀚慖f the IMS A/B/C/P operation does not match the logic table proceed to DTC P1824, P182A-P182F, P1838, or P1839 ( See: P Code
Charts/P1824).
5. Retest for DTC P183F
瀚慖f the DTC resets, program the PIM with the latest software version and recheck for DTCs. If the DTC resets after programming or if the
PIM already contains the latest software version, replace the PIM.
Circuit/System Testing
