Symptom 42

DTC C056E (Symptom 42)

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Initial Inspection and Diagnostic Overview
* 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

Connector End View Reference

Power Steering Connector End Views

Description and Operation

Power Steering System Description and Operation

Electrical Information Reference

* Testing for Intermittent Conditions and Poor Connections
* Circuit Testing

Scan Tool Reference

* Scan Tool Data List
* Scan Tool Data Definitions

Circuit/System Verification

Program the PSCM.

If DTC C056E 42 resets after programming, replace the PSCM.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Verification Tests

Service Programming System (SPS)