Body Function Controller Reprogramming Procedure

IMPORTANT
When removing the Body Function Controller (BFC) disconnect connector C3 FIRST, then disconnect the remaining connectors. When installing the Body Function Controller (BFC) connect connectors C1 and C2 first. ALWAYS connect connector C3 LAST.

USING A SCAN TOOL AND TECHLINE TERMINAL TO CONFIGURE THE BODY FUNCTION CONTROLLER
1. Connect the scan tool to vehicle diagnostic connector, and choose Service Programming from the scan tool Main Menu.
2. After entering the vehicle information, choose the Request Info soft key on the scan tool.
3. Disconnect the scan tool from the vehicle and connect the scan tool to the Techline Terminal.
4. At the Techline Terminal, select Service Programming System (SPS).
5. Select Terminal to scan tool programming method.
6. Select Done and follow instructions on the Communications Setup screen.
7. Select Program Body Function Controller.
8. Select Program at the Summary screen. The terminal will download in formation to the Scan tool.
9. Return to the vehicle and connect the scan tool to the diagnostic connector.
10. Select Service Programming from the scan tool Main Menu.
11. Answer the prompts regarding model year and vehicle type. Press the Body Function Controller soft key on scan tool. The Body Function Controller will be programmed with the configuration file stored in the scan tool.
12. Reprogram the Theft Deterrent System.
13. Reprogram the Powertrain Control Module (PCM).
14. Verify the repair.

TROUBLESHOOTING HINTS:
^ Make the following checks before beginning system diagnosis.
1. Check all fuses by visual inspection.
2. Ensure that all connectors in system are mated correctly.
3. Check for open in Class 2 serial data link (CKT 1807).
4. Check for an open in the Serial Peripheral Interface (SPI) serial data link (CKT 1321, 1322, 1323).
5. Do NOT replace the Body Function Controller (BFC) with only History Codes set.
^ Check for a broken (or partially broken) wire inside of the insulation which could cause system failure but prove GOOD in a continuity/voltage check.
^ Check for proper installation of aftermarket electronic equipment which may affect the integrity of their systems.
^ Check that all grounds are tight and clean.
^ Refer to System Diagnosis.

SYSTEM DIAGNOSIS
^ Perform the Body Function Controller (BFC) Diagnostic System Check and refer to the Symptom Table for the appropriate diagnostic procedures.