For 1990-2009 cars

### 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 Descriptor

DTC C0565 47: VIN Not Programmed (Vehicle Identification Number)
DTC C0565 71: VIN Mismatch (Vehicle Identification Number)

### Circuit/System Description

The electronic brake control module (EBCM) learns the model it is installed in, by using the vehicle ID information via the serial data line. Each time the vehicle is in the RUN position or the instrument panel cluster (IPC) communicates this information the EBCM internally compares the VIN information with the information stored. If the VIN is incorrect, the EBCM will indicate a VIN information error is present.

When the EBCM is replaced, software and calibrations are flash programmed into the EBCM. The EBCM receives the vehicle identification number information from the vehicle in order for the EBCM to automatically calibrate to the vehicle.

### Conditions for Running the DTC

• | The ignition is ON.

• | Ignition voltage is greater than 8 volts.

### Conditions for Setting the DTC

• | The incorrect EBCM is installed on the vehicle.

• | 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 EBCM disables the Antilock Brake System (ABS)/Traction Control System (TCS)/Electronic Stability Control (ESP) for the duration of the ignition cycle.

• | The multi function display (MFD) displays the ABS Fault message.

• | The multi function display (MFD) displays the Traction Ctrl Off message.

• | The multi function display (MFD) displays the Stability Ctrl Off message.

### Conditions for Clearing the DTC

#### C0565 47

• | The condition for setting the DTC is no longer present.

• | The VIN information transmitted from the instrument cluster matches the information stored in the EBCM

#### C0565 71

• | The condition for setting the DTC is no longer present.

• | The VIN information transmitted from the instrument cluster matches is stored in the EBCM.

### Reference Information

#### Schematic Reference

Antilock Brake System Schematics

#### Connector End View Reference

Component Connector End Views

#### Electrical Information Reference

• | Circuit Testing

• | Connector Repairs

• | Testing for Intermittent Conditions and Poor Connections

• | Wiring Repairs

#### Scan Tool Reference

Control Module References

### Circuit/System Testing

1. Using a scan tool, view "Signals" Data Display list under EBCM.
2. Refer to the appropriate module for diagnosing any "invalid" signals.
3. If no invalid signals are present, view "Signal Fault" data in "Enhanced DTC Data"
4. Refer to the appropriate module for diagnosing an intermittent faulted signal

### Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.