• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provide an overview of each diagnostic category. |
After replacement of the power steering control module (PSCM), the PSCM must be configured with the proper tuning profile using the service programming system (SPS).
After replacement of the PSCM, power steering motor, or steering gear, the steering position/torque sensor calibration procedure must be performed.
Ignition ON.
This DTC will set if the PSCM has not undergone SPS programming.
This DTC will set if the PSCM, motor or torque sensor has not been calibrated using the steering position / torque sensor calibration procedure.
• | 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. |
A current or history DTC will clear after the PSCM has been configured with the proper tuning profile.
A current or history DTC will clear after the steering position/torque sensor calibration procedure has been performed.
Power Steering System Description and Operation
Control Module References for scan tool information
⇒ | If DTC C056E 42 is set, perform the PSCM programming and setup procedures. If DTC C056E 42 resets, replace the PSCM. |
⇒ | If DTC C056E 4B is set, perform the steering position/torque sensor calibration. If DTC C056E 4B resets, replace the PSCM. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for PSCM replacement, setup, and programming