C0551

Refer to Programing and Relearning

DTC C0551

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Initial Inspection and Diagnostic Overview
* Review Strategy Based Diagnosis for an overview of the diagnostic approach. Initial Inspection and Diagnostic Overview
* Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptor

DTC C0551 45

- Option Configuration Error/Variant not programmed

DTC 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. 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) dynamic rear proportion (DRP) are disabled.
* The ABS indicators turn ON.
* The red BRAKE Warning indicator turns ON.

Conditions for Clearing the DTC

* The condition for 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.

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

Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Verification Tests

Refer to Programing and Relearning Programming and Relearning


Repair Verification

Diagnostic Repair Verification