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 provides an overview of each diagnostic category. |
DTC Descriptors
DTC C0561 71: System Disabled Information Stored Invalid Serial Data RecievedDTC C0561 72: System Disabled Information Stored Alive Counter Incorrect/Not Updated
DTC C0561 74: System Disabled Information Stored Value of Signal Protection Calculation Incorrect
DTC C0561 75: System Disabled Information Stored Value of Signal Above Allowable Range
DTC C0561 7F: System Disabled Information Stored Value of Signal Erratic
Circuit/System Description
The electronic brake control module (EBCM) receives serial data messages from the body control module (BCM), engine control module (ECM), instrument panel cluster (IPC), and the transmission control module (TCM) which are needed to perform antilock brake system (ABS), vehicle stability enhancement system (VSES), or traction control system (TCS) functions.
Conditions for Running the DTC
| • | Ignition ON. |
| • | Ignition voltage is greater than 10 volts. |
Conditions for Setting the DTC
The EBCM receives an invalid serial data message from another module.
Actions Taken when the DTC Sets
| • | The EBCM disables the antilock brake system (ABS), traction control and StabiliTrak for the duration of the ignition cycle. |
| • | A DIC message and/or a warning indicator may be displayed. |
Conditions for Clearing the DTC
| • | The condition for setting the DTC is no longer present. |
| • | The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles. |
Diagnostic Aids
This DTC indicates that there are no problems in the EBCM. The BCM, ECM, IPC, and the TCM should be checked for a possible fault.
Reference Information
Schematic Reference
Antilock Brake System Schematics
Connector End View Reference
Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
Verify that no DTCs are set in the BCM, ECM, IPC and the TCM.
| ⇒ | If DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle. |
