Power Steering System

DTC C0551

Circuit Description
After replacement of the electric power steering (EPS) assembly, the power steering control module (PSCM) must be configured with the proper tuning profile using the service programming system.

DTC Descriptor
This diagnostic procedure supports the following DTC:

DTC C0551 Option Configuration Error

Conditions for Running the DTC
The ignition is ON.

Conditions for Setting the DTC
The PSCM has not been configured with the proper tuning profile.

Action Taken When the DTC Sets
^ DTC C0551 is stored in memory.
^ The instrument panel cluster (IPC) displays the SERVICE VEHICLE SOON warning indicator.
^ 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 after the PSCM has been configured.

Diagnostic Aids
A newly replaced EPS assembly will set DTC C0551 on it's initial ignition ON cycle.

Test Description

Step 1 - Step 4:

The numbers below refer to the step numbers on the diagnostic table.
2. Tests if the condition is current.