For 1990-2009 cars

A new body control module (BCM) must be programmed with the proper regular production option (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 all of the features properly. The Tech 2 software will automatically prompt you with the various RPOs available for the vehicle. Ensure that the following conditions exist in order to prepare for BCM programming:

1. This entire procedure has been reviewed before starting
2. The battery is fully charged.
3. A CANdi module is installed between the vehicle and the scan tool.
4. The ignition switch is in the ON position.
5. The data link connector (DLC) is accessible.
6. All disconnected modules and devices are reconnected before programming.

### BCM Programming

Important: Use extreme care when verifying both the VIN and Odometer reading that is set in the service BCM. Once the VIN and Odometer are set in the replacement BCM it is impossible to change them, and if there is a mismatch, the part will be rendered useless.

To setup a new replacement BCM select Vehicle Control Systems, then select the applicable options, then select Module Setup, then select Body Control Module, then select BCM Setup on the scan tool. After the setup procedure it is necessary to perform the Remote Start setup procedure, if equipped. Refer to the Importants below for further information.

If the BCM fails to accept the program, perform the following steps:

• | Inspect all BCM connections.

• | Verify that the scan tool has the latest software version.

### Remote Start Calibration, (if equipped)

In order to setup the remote start feature a Techline Terminal using the Pass-Thru routine must be used. With the scan tool powered down, attach it to the vehicle then connect the Techline Terminal's RS-232 cable to the scan tool. Select Service Programming System from the Techline Terminal main screen. Select the Pass-Thru procedure from the Techline Terminal's menu selections and follow all on-screen directions. Ensure the correct programming procedure is selected based on the component being replaced or programmed. Configure the remote start feature to match the original RPO content on the vehicle.

### SDM Part Number Learn Procedure

If the SDM is replaced the SDM part number must be learned by the BCM. Using a scan tool navigate to Vehicle Control Systems, Module Setup, Supplemental Inflatable Restraints then select Setup SDM Part Number In BCM. Follow the on screen directions.

Important: After programming, perform the following to avoid future misdiagnosis:

1. Turn the ignition OFF for 10 seconds.
2. Connect the scan tool to the data link connector.
3. Turn the ignition ON with the engine OFF.
4. Use the scan tool in order to retrieve history DTCs from all modules.
5. Clear all history DTCs.