2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 950
Actions Taken When DTC Sets
* DTC is stored in memory.
* The driver information center (DIC) displays the SERVICE POWER STEERING warning message.
* Steering assist is set to a default level.
Conditions for Clearing the DTC
DTC C056E 42
A current or history DTC will clear after the PSCM has been configured with the proper tuning profile.
DTC C056E 4B
A current or history DTC will clear after the steering position/torque sensor calibration procedure has been performed.
Reference Information
Schematic Reference
Power Steering Schematics (See: Steering and Suspension/Steering/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Power Steering System Description and Operation (Hydraulic Power Steering) (See: Steering and Suspension/Steering/Description and
Operation/Power Steering System Description and Operation (Hydraulic Power Steering))Power Steering System Description and Operation (EPS)
(See: Steering and Suspension/Steering/Description and Operation/Power Steering System Description and Operation (EPS))
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
1. Verify DTC C056E 42 is not set.
瀚慖f DTC C056E 42 is set, perform the PSCM programming and setup procedures. If DTC C056E 42 resets, replace the PSCM.
2. Verify DTC C056E 4B is not set.
瀚慖f DTC C056E 4B is set, perform the steering position/torque sensor calibration. If DTC C056E 4B resets, replace the PSCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for PSCM replacement, setup, and programming
C0110
DTC C0110, C12E0, C12E8, or C12E9
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
