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 B1001: Option Configuration Error

### Circuit/System Description

The body control module (BCM) stores the last 4 digits of the sensing and diagnostic module (SDM) part number, also called restraints ID. After the BCM is reprogrammed the restraints ID is set to zero. A restraints ID relearn must be performed for the BCM to learn the restraints ID.

### Conditions for Running the DTC

Battery voltage is between 9-16 volts and data link communications operate normally.

### Conditions for Setting the DTC

The restraints ID stored in the BCM memory is zero.

### Conditions for Clearing the DTC

• | A current DTC clears when the condition 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 body control module (BCM). Refer to Body Control Module Programming and Setup .

⇒ | If the DTC remains current, replace the BCM. Refer to Repair Instructions.

### Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for BCM replacement, setup, and programming