Symptom 42

DTC C056E (Symptom 42)

Diagnostic Instructions

* 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.



DTC Descriptor
DTC C056E 42
- ECU Hardware Performance Calibration Data Set Not Programmed




Circuit/System Description

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).


Conditions for Running the DTC

The ignition is ON.


Conditions for Setting the DTC

This DTC will set if the PSCM has not undergone SPS reprogramming.


Actions Taken When DTC Sets

* DTC C056E 42 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

* A current DTC will clear after the PSCM has been configured with the proper tuning profile.
* A history DTC will clear after 100 consecutive malfunction-free ignition cycles from when the PSCM has been configured with the proper tuning profile.



Reference Information
Schematic Reference

Power Steering Schematics (Electrical Diagrams)
Connector End View Reference

Component Connector End Views
Description and Operation

Power Steering System Description and Operation (with EPS) (Power Steering System Description and Operation (with EPS))Power Steering System Description and Operation (with HPS) (Power Steering System Description and Operation (with HPS))
Electrical Information Reference

* Circuit Testing
* Connector Repairs
* Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information


Circuit/System Verification

Verify DTC C056E 42 is not set.

If DTC is set, program the PSCM. If DTC resets, replace the PSCM.



Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.


Control Module References for PSCM replacement, setup, and programming