Diagnostic Instructions
DTC Descriptors
DTC C0561 71: System Disabled Information Stored, Invalid Serial Data Received: Electronic Brake Control Module, Suspension Control Module, Power Steering Control Module, Steering Wheel Position Sensor, and Inertial
Sensor
Circuit/System Description
The vehicle stability control module (VSCM) disables stability control and or traction control when other electronic control module and components set DTCs for components that affect the operation stability control system.
Conditions for Running the DTC
| • | Ignition voltage is greater than 9 volts. |
Conditions for Setting the DTC
The engine control module (ECM), power steering control module (PSCM), electronic brake control module (EBCM), magneto-rheological, real time damping (MR-RTD) module, inertial measurement unit (yaw rate, lateral, and longitudinal sensor), or steering wheel
position sensor (SWPS) diagnoses a condition which prevents the stability control system from performing correctly. The source module will typically set a DTC and the VSCM will set DTC C0561.
Action Taken When the DTC Sets
| • | The VSCM disables suspension and steering stability control or all VSES for the ignition cycle when the DTC is set. |
| • | Either stability secure mode or service stability message is displayed. |
| • | The antilock brake system (ABS) remains functional. |
Conditions for Clearing the DTC
| • | The condition for setting the DTC is no longer present. |
| • | The EBCM automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles. |
Diagnostic Aids
The DTC provides an indication that the stability control function is disabled because of a fault in another component. All power steering control module (PSCM), electronic brake control module (EBCM) and magneto-rheological, real time damping (MR-RTD)
codes should be addressed first.
Reference Information
Schematic Reference
Antilock Brake System Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
ABS Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References
Circuit/System Verification
Verify that no DTCs are set in the PSCM, VSCM, MR-RTD, and EBCM. Also review ABS wheel speed sensor, steering angle sensor parameters for correct readings.
Repair Instructions
Perform the
Diagnostic Repair Verification
after completing the diagnostic procedure.
