For 1990-2009 cars

### DTC Descriptors

DTC B1001 4B: Option Configuration Error Calibration not Learned
DTC B1001 45: Option Configuration Error Variant Not Programmed

### Diagnostic Fault Information

Perform the Diagnostic System Check - Vehicle , prior to using this diagnostic procedure.

### Circuit/System 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

#### DTC B1001 4B

The module has detected that the axle ID number is not programmed.

#### DTC B1001 45

The module has detected that the restraints ID number 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

#### DTC B1001 45

1. Program the restraints ID into the BCM.
2. Retrieve DTCs from the BCM. DTC B1001 45 should change to a history DTC.

⇒ | If the DTC remains current, replace the BCM.

### Repair Instructions

Perform the Diagnostic Repair Verification , after completing the repair.

Refer to Control Module References , for BCM replacement, setup, and programming.