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 C0561 71: System Disabled Information Stored Invalid Serial Data ReceivedCircuit/System Description
The power steering control module (PSCM) monitors validity faults from the steering angle sensor and vehicle stability control module (VSCM) via serial data.
Conditions for Running the DTC
Engine running.
Conditions for Setting the DTC
The PSCM does not receive vehicle speed message or receives an invalid vehicle speed message from the VSCM or steering angle sensor.
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 on the next malfunction free ignition cycle. |
| • | A history DTC will clear after 100 consecutive malfunction free ignition cycles. |
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
Important: This DTC will set as a result of fault conditions caused by other modules or components on the serial data circuit.
Verify that no DTCs are set in the TCM, VSCM, or EBCM. Also review wheel speed sensor and steering angle sensor parameters to verify correct readings.
| ⇒ | If DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle . |
