Tools Required:

Scan Tool

Important: 

1. Connect a Scan Tool to the Data Link Connector in the vehicle.
2. Input all of the required data when prompted by the Scan Tool .
3. Turn the ignition switch to the RUN position.
4. Select SPECIAL FUNCTIONS at the MAIN MENU screen.
5. Select SETUP NEW BCM at the SPECIAL FUNCTION MAIN MENU screen.

Important: If the wrong Vehicle Identification Number (VIN) information is entered, the BCM may need to be replaced. The Scan Tool alone is not capable of removing the BCM from the secured mode.

6. Input the correct VIN information when prompted by the Scan Tool .

Important: Perform the Setup New BCM Service Programming System Method procedure if the Scan Tool indicates that the Setup New BCM procedure is unable to be completed.

7. After you have answered the VIN fifth digit inquiry, the Scan Tool displays the following messages in order:

7.1.	NOW SETTING UP THE NEW BODY CONTROL MODULE (for 3-4 seconds)

7.2.	BODY CONTROL MODULE SETUP IS COMPLETE

8. Inspect for BCM DTCs.
9. Erase the BCM DTCs.
10. Press EXIT repeatedly until the APPLICATION MENU screen is viewed.
11. Disconnect the Scan Tool from the DLC.
12. Turn the ignition switch to the LOCK position.

Important: The vehicle will not operate properly if the Theft Deterrent Re-Learn procedure is not performed.

13. Perform the Theft Deterrent Re-Learn procedure.

Tools Required:

Important: Perform this procedure ONLY when the Scan Tool is unable to complete the Setup New BCM procedure. Do not perform this procedure without attempting to perform the Setup New BCM procedure using a Scan Tool first.

Use one of the following service programming system methods, depending on the type of Techline equipment available:

1. Direct Programming: The Techline equipment is directly connected to the vehicle's DLC.
2. Indirect Programming: The Techline equipment uses a Scan Tool in order to access the vehicle's DLC.

Read both procedures carefully and completely before proceeding. Perform only ONE of the procedures. Do not perform both procedures.

Important: Perform the Theft Deterrent Re-Learn procedure after successfully finishing the Setup New BCM Procedure. If the Theft Deterrent Re-Learn procedure is not performed after a BCM replacement, the following conditions may occur:

•	The vehicle will not be protected against theft by the PASS-Key® II system.

•	The engine will not crank or start.

1. Select SERVICE PROGRAMMING SYSTEM from the Techline Navigator or by selecting F2 on the Information Menu.
2. Select SPS/EEPROM on the Diagnostic Menu.
3. Select TERMINAL TO VEHICLE for the programming method.
4. Select NEW VEHICLE. Follow the screen instructions.
5. Connect the Data Link Connector (DLC) cable to the vehicle.
6. Turn the ignition switch to the RUN position.
7. Select OK.
8. The Vehicle Identification Number (VIN) will be read. If the VIN cannot be read, enter the VIN manually.
9. Select SPECIAL.
10. Select PROGRAM BY VCI.
11. Enter 1008 for the VCI number.
12. Select DONE.
13. Verify the following conditions:

•	The DLC cable is connected to the vehicle.

•	The ignition switch is in the RUN position.

14. A summary of selected calibrations is displayed with the BCM calibrations. Ensure that the correct calibration based on the vehicle features is selected.
15. Select PROGRAM.
16. Select YES in order to confirm programming.

1. Connect a Scan Tool to the vehicle DLC.
2. Select VEHICLE YEAR and TYPE.
3. Select REQUEST INFORMATION soft key.
4. Connect the Scan Tool to the terminal.
5. Select SERVICE PROGRAMMING SYSTEM from the Techline Navigator or by selecting F2 on the Information Menu.
6. Select SPS/EEPROM on the Diagnostic Menu.
7. Select NEW VEHICLE.
8. The VIN will be read. If the VIN cannot be read, enter the VIN manually.
9. Select SPECIAL.
10. Select PROGRAM BY VCI.
11. Enter 1008 for the VCI number.
12. Select DONE.
13. The summary of selected calibrations is displayed with BCM calibrations. Ensure that the correct calibration based on the vehicle features is selected.
14. Select PROGRAM.
15. Select YES in order to confirm programming. Calibration is downloaded to the Scan Tool .
16. Connect the Scan Tool to the vehicle DLC.
17. Select VEHICLE YEAR and TYPE.
18. The VIN and end model part number is displayed on the Scan Tool .
19. Select PROGRAM soft key in order to setup or program the BCM.

Perform this procedure under the following conditions:

Use one of the following three Theft Deterrent Re-Learn procedures, depending on the type of Techline equipment available:

1. Techline terminal and a Scan Tool (the quickest method)
2. T-50 or T-60
3. Re-Learn without a Scan Tool or Techline equipment (the slowest method)

1. Connect the Scan Tool to the DLC on the vehicle.
2. At the Scan Tool main menu, select SERVICE PROGRAMMING.
3. Enter the requested information.
4. Select REQUEST INFO.
5. Disconnect the Scan Tool from the vehicle.
6. Connect the Scan Tool to the Techline terminal.
7. Select SERVICE PROGRAMMING SYSTEM (SPS).
8. Select TERMINAL TO TECH 2 PROGRAMMING.
9. Select DONE.
10. Follow the instructions on the Techline terminal to Handheld Communications Setup screen.
11. Select THEFT MODULE RE-LEARN.
12. Select PROGRAM at the summary screen.

The terminal will download information to the Scan Tool .

13. Disconnect the Scan Tool from the Techline terminal.
14. Connect the Scan Tool to the DLC on the vehicle.
15. At the Scan Tool main menu, select SERVICE PROGRAMMING.
16. Answer the question prompted by the Scan Tool .
17. Select RE-LEARN.
18. The Powertrain Control Module (PCM) and the BCM will be prepared for re-learn.
19. A security timer will turn on for approximately 10 minutes. During the 10 minute wait period, ensure that the Scan Tool remains connected to the vehicle.
20. Turn the ignition switch to the OFF position when the PCM and the BCM are prepared to re-learn.
21. Turn the ignition switch to the START position.

The engine should start when the ignition key is turned to the START position.

22. Disconnect the Scan Tool from the DLC.

1. Enter the T-50 or T-60 Service Programming System (SPS).
2. Select TERMINAL TO VEHICLE PROGRAMMING.
3. Select DONE.
4. Follow the instructions on the VEHICLE SETUP screen.
5. Select THEFT MODULE RE-LEARN.
6. Follow the instructions on the remaining screens.
7. The PCM and the BCM will be prepared for re-learn.
8. A security timer will turn on for approximately 10 minutes. During the 10 minute wait period, ensure that the T-50 or T-60 terminal remains connected to the vehicle.
9. When the PCM and the BCM are prepared to re-learn, turn the ignition switch to the OFF position.
10. Turn the ignition switch to START position.

The vehicle should now start.

The duration of this procedure is approximately 30 minutes. Ensure that the battery is fully charged before proceeding. Refer to Engine Electrical for more information.

1. Turn the ignition switch to the LOCK position
2. Turn the ignition switch to the RUN position.
3. SECURITY will turn on and remain on for at least 10 minutes.
4. Turn the ignition switch to the LOCK position for five seconds.
5. Turn the ignition switch to the RUN position.
6. SECURITY will turn on and remain on for at least 10 minutes.
7. Turn the ignition switch to the LOCK position for five seconds.
8. Turn the ignition switch to the RUN position.
9. SECURITY will turn on and remain on for at least 10 minutes.
10. Turn the ignition switch to the LOCK position for five seconds.
11. Turn the ignition switch to the LOCK position
12. Turn the ignition switch all the way to the START position.

The engine should now start.

13. Inspect for BCM Diagnostic Trouble Codes (DTCs).

This vehicle is equipped with a Body Control Module (BCM). The BCM performs multiple body and engine control functions. The following vehicle systems are directly connected to the BCM:

This vehicle also has the following systems:

These vehicle systems communicate with each other on an interconnecting bus, known as the Class 2 serial data link.

Some electrical components are directly connected and controlled by their system module. Other systems accomplish this feature by sharing data information with other systems on the Class 2 serial data link in order to execute various vehicle functions. All of the system data information (sensors, switches, etc.) may be monitored by any system module that completes the computer system.

All systems on the Class 2 serial data link use a communication process similar to a telephone system. Large amounts of information may be exchanged on a single data wire.

Communications between each system is accomplished by sending a digitally coded message. The digitally coded message consists of specific information a system module must follow. Each system module is assigned a recognition code (address). When a message is sent out on the Class 2 serial data link, the BCM provides more accurate and reliable computer system control functions. The BCM uses information from other systems in order to execute some functions. Before further diagnosis, review the following general information:

Review this information in order to gain the following benefits:

The Body Control Module (BCM) is capable of accomplishing multiple body control functions Components directly connected to the BCM are controlled by the BCM's outputs. The BCM controls the outputs based on the following information:

The BCM evaluates this information and controls the certain body systems by commanding an output on or off.

The BCM is also capable of commanding other vehicle systems to control functions that are not directly wired and/or controlled by the BCM. The BCM accomplishes this task by sending specific messages on the Class 2 serial data link. The vehicle system capable of performing such function will respond to the BCM message.

The BCM performs the following functions:

Retained Accessory Power (RAP)

The Retained Accessory Power (RAP) feature allows the operation of the following functions for 10 minutes (or until a vehicle door opens) after the ignition switch has been turned from the RUN or ACC to the LOCK or OFF position:

Refer to Retained Accessory Power (RAP) for more information.

Audible Warnings

The Audible Warnings system performs the following functions:

Refer to Instrument Panel, Gauges and Console for more information.

Interior Lighting

Interior Lighting system performs the following functions:

Refer to Lighting Systems for more information.

Automatic Door Locks

The Automatic Door Locks system performs the following functions:

The BCM provides feature customization of these door lock functions:

Refer to Doors for more information.

Keyless Entry

The Keyless Entry system performs the following functions:

Refer to Keyless Entry for more information.

PASS-Key® II Theft Deterrent

The Personal Automotive Security System (PASS-Key® II) is a vehicle theft deterrent system. The PASS-Key® II is designed in order to prevent vehicle theft by disabling the engine from starting unless an ignition key with a specific resistor pellet code is used in the ignition lock cylinder.

The ignition lock cylinder contains the resistor sensing contacts. These contacts touch the resistor pellet embedded in the ignition key. When the ignition key is inserted in the ignition lock cylinder, the resistor pellet completes the key detection circuit (CKT 1073 and CKT 1074).

When the ignition switch is turned from the OFF to the RUN position, the BCM applies a 5 V reference voltage to CKT 1073. The BCM reads the resistor pellet code and compares the stored resistor pellet code against the ignition key resistor pellet code for a correct match.

Upon detecting a correct match, the BCM sends a fuel enable password to the PCM through the Class 2 serial data link. As a result, the PCM enables the theft deterrent relay. This action allows fuel delivery to the engine.

If the key resistor pellet is incorrect, the PCM performs the following actions:

This vehicle disable period state lasts approximately 3 minutes. The SECURITY indicator flashes when the ignition switch is turned to the RUN position. Disconnecting the battery will not clear the timer sequence. The timer sequence resumes when the battery power is restored. If a proper key is inserted during the vehicle disable period, the vehicle will not start until the 3 minute time period elapses. After the 3 minute time period, the SECURITY indicator changes from a flashing state to a solid ON state. At this time, the BCM enters the theft deterrent re-learn mode. The engine will start if the correct ignition key resistor pellet is used.

Refer to Theft Deterrent for more information.

The BCM performs these functions in the wake-up state. The BCM enters the sleep state when the following conditions exist:

The BCM must detect certain wake-up inputs before the BCM enters the wake-up state. The BCM monitors the inputs during the sleep state. This condition allows the BCM to switch between the awake state and the sleep state.

The BCM enters the wake-up state when receiving activity on any of the following inputs:

The sleep state occurs when the following conditions exist:

When the BCM detects a wake-up condition, the BCM enters the wake-up state. The conditions listed above are called Wake-Up Inputs. These wake-up inputs cause the BCM to change from a sleep state to a wake-up state. The BCM then begins active control and monitoring. The BCM has the ability to monitor for these wake-up inputs in the sleep state.

The BCM enters the sleep state when all of the following conditions exist:

The BCM has 3 main voltage feeds and 1 ground. CKT 2340 is used in order to provide power for the BCM's logic and internal driver operation. CKT 1540 provides power for the automatic door lock. CKT 240 provides power to the courtesy lights.

The following components provide direct input to the BCM. Other systems may use this input information in order to perform certain functions. Refer to Body Control System Schematics for BCM connector and terminal locations.

The BCM directly controls the following outputs. Other systems may request the BCM to control these outputs for certain functions. Refer to Body Control System Schematics for BCM connector and terminal locations.