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 00: Option Configuration Error
DTC B1001 45: Option Configuration Error Variant Not Programmed
DTC B1001 46: Option Configuration Error
DTC B1001 4B: Option Configuration Error Calibration Not Learned

### Circuit/System Description

Some control modules must be configured with serial numbers, vehicle options, or other information. If a control module was not properly configured after installation, that module may set DTC B1001.

### Conditions for Running the DTC

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

### Conditions for Setting the DTC

The control module is not configured properly.

### 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

1. Program or configure the module or related module that set DTC B1001. The module should successfully configure.

⇒ | If the module will not configure, replace the module that set the DTC.

2. With a scan tool, clear the DTC.
3. Ignition OFF, remove the scan tool, open and close the drivers door.
4. Wait 60 seconds, then recheck for DTCs. DTC B1001 should not set.

⇒ | If DTC B1001 sets, replace the module.

### Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for control module replacement, setup, and programming