For 1990-2009 cars only
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 4B: ECU Software Performance Calibration Not LearnedCircuit/System Description
The power steering control module (PSCM) monitors the learned or unlearned status of the steering angle sensor. The steering angle sensor must be learned or the power steering control module will not function.
Conditions for Running the DTC
The ignition is ON. Engine running.
Conditions for Setting the DTC
The steering angle sensor neutral position has not been learned.
Action Taken When the DTC Sets
| • | Active Steering is disabled. |
| • | SERVICE STEERING SYS and/or STABILITY SECURE MODE is displayed on the DIC. |
Conditions for Clearing the DTC
A current DTC will clear when a valid steering actuator neutral position has been learned.
Reference Information
Schematic Reference
Connector End View Reference
Description and Operation
Active Front Steering Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
Verify DTC C056E 4B is not set.
| ⇒ | If the DTC is set, perform the scan tool PSCM Calibration Procedure. Refer to Power Steering Control Module Programming and Setup . |
