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 C0551 45: Option Configuration Error/Variant Not ProgrammedDTC C0551 47: Option Configuration Error/VIN Not Programmed
Circuit/System Description
When the electronic brake control module (EBCM) is replaced, software and calibrations are flash programmed into the EBCM.
Conditions for Running the DTC
The ignition switch is in the ON position.
Conditions for Setting the DTC
C0551 45
The option configuration has not been programmed into the EBCM.
C0551 47
The incorrect EBCM has been installed in the vehicle.
Action Taken When the DTC Sets
One or more of the following actions may occur:
| • | The antilock brake system (ABS)/Engine Traction System (ETS) are disabled. |
| • | The ABS/ETS indicators illuminate. |
Conditions for Clearing the DTC
The correct calibration must be programmed into the EBCM.
Diagnostic Aids
If the DTC was set after EBCM replacement, verify that the replacement EBCM and software are correct for the vehicle.
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 DTC C0551 programming is not set.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for EBCM replacement, setup, and programming
