For 1990-2009 cars

### Diagnostic Instructions

• | Perform the Diagnostic System Check - Vehicle prior to using the 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

This diagnostic procedure supports the following DTC:

DTC B1015-Vehicle Identification Number (VIN) Information Not Programmed

### Circuit Description

The internal fault detection is handled inside the control module. No external circuits are involved.

### Conditions for Running the DTC

The only requirements are voltage and ground.

### Conditions for Setting the DTC

The module has detected that the VIN is not programmed.

### Conditions for Clearing the DTC

• | A current DTC clears when the malfunction is no longer present.

• | A history DTC clears when the module ignition cycle counter reaches the reset threshold, without a repeat of the malfunction.

### Circuit/System Verification

• | Program the VIN information to the body control module (BCM).

• | Turn the ignition OFF, wait several seconds and then turn the ignition ON.

• | Retrieve DTCs from the BCM. DTC B1016 should change to a history DTC. If this DTC is retrieved as a current DTC, replace the module that set the DTC.

### Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

• | Refer to Section 9A, Body Wiring System

• | Refer to the related module and the non-communicating module replacement, setup and programming