C0551

DTC C0551
DTC Descriptor
DTC C0551 45
Option Configuration Error/Variant not programmed
DTC C0551 47
Option Configuration Error/VIN not programmed

Diagnostic Fault Information

Important: Always perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Initial Inspection and Diagnostic Overview

Circuit/System Description
When the electronic brake control module (EBCM) is replaced, software and calibrations are flash programmed into the EBCM. The EBCM receives the vehicle power-train options information from the power-train control module (PCM) in order for the EBCM to automatically calibrate to the vehicle.

Conditions for Running the DTC
The ignition switch is in the ON position.

Conditions for Setting the DTC
C0551 45
The incorrect EBCM is installed on the vehicle.
C0551 47
The incorrect software or calibrations have been flash programmed into the EBCM.

Action Taken When the DTC Sets
One or more of the following actions may occur:
^ The Antilock Brake System (ABS) /Traction Control System (TCS)/dynamic rear proportion (DRP) are disabled.
^ The ABS/TCS indicators turn ON.
^ The red BRAKE Warning indicator turns ON.

Conditions for Clearing the DTC
^ The condition for the DTC is no longer present and the DTC is cleared with a scan tool.
^ The EBCM automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.

Circuit/System Verification
1. Verify that the EBCM is the correct module for the vehicle.
^ If the EBCM is not correct, replace the EBCM.
^ Reprogram the EBCM.

Repair Instructions

Important: Always perform the Diagnostic Repair Verification after completing the diagnostic procedure. Verification Tests

Control Module References for EBCM

Repair Verification
Diagnostic Repair Verification