For 1990-2009 cars

1. The body control module (BCM) must be programmed with the proper RPO configurations. The BCM stores the information regarding the vehicle options and if the BCM is not properly configured with the correct RPO codes the BCM will not control the features properly. Ensure that the following conditions exist in order to prepare for BCM programming:

• | The battery is fully charged.

• | The ignition switch is in the ON position.

• | The data link connector (DLC) is accessible.

2. Follow the instructions on the Techline Terminal and scan tool to program the BCM.
3. If the BCM fails to accept the program, perform the following steps:

• | Inspect all BCM connections.

• | Verify that the Techline Terminal and scan tool have the latest software version.

### Passlock Learn Procedures

#### Requirements for Using Any Learn Procedure

Perform the Learn Procedure if any of the following components have been replaced:

Important: If any module is replaced, programming the module must be done prior to performing the Passlock Learn procedure.

• | The Passlock sensor

• | The body control module (BCM)

• | The powertrain control module (PCM)

#### Passlock Learn Procedure -- Using the Techline Terminal and the Scan Tool

Follow the instructions displayed on the Techline Terminal in Service Programming System (SPS) and the scan tool for this reprogramming procedure.

#### Auto Learn Passlock Procedure

1. Turn the ignition switch to the ON position (NOT the CRANK position).
2. Turn the ignition switch to the CRANK position, then release to the ON position (Do NOT start the vehicle).
3. Observe the security telltale for approximately 10 minutes.
4. After the ignition switch has been in the ON position for approximately 10 minutes, the security telltale will transition from ON, then to OFF.
5. Clear the DTCs using a scan tool.