Introduction
A new body control module (BCM) must be programmed with the latest operating
software and vehicle calibrations. 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. |
• | All disconnected modules and devices are connected. |
Programming the BCM
Important: The vehicle will not start and many other
functions may not operate correctly if a replacement BCM is not correctly set up.
The following procedures must be followed:
- The BCM reprogramming - Refer to
Service Programming System (SPS) Notice
.
- Brake pedal position sensor (BPPS) learn.
- Program SDM primary key to BCM
Important: After the procedure is completed, the personalization
settings of the BCM are set to default settings. Inform the customer that the personalization
must be set again.
Brake Pedal Position Sensor (BPPS) Learn
- Calibration Criteria
DO NOT apply the brake
pedal during the brake pedal position sensor calibration procedure. Any movement of
the brake pedal during this procedure will cause the calibration procedure to fail.
If this occurs, the BPPS calibration must be repeated. BPPS calibration must be performed
after the BPPS or body control module (BCM) have been serviced. The calibration procedure
will set the BPPS home value. This value is used by the BCM to determine the action
of the driver applying the brake system and to provide this information to the vehicle
subsystems via the serial data communication bus.
Apply the parking brake.
- Place the transmission in the PARK position for automatic transmission
or NEUTRAL for manual transmission.
- Install a diagnostic scan tool.
- Key ON, engine OFF, select Body.
- Select BCM (Body Control Module).
- Select Programming.
- Select the Brake Pedal Position Sensor Learn procedure and follow the
directions displayed on the screen.
- Check all vehicle lights for correct operation.
Program SDM Primary Key to BCM
- Install a diagnostic scan tool.
- Key ON, engine OFF, select Body.
- Select BCM (Body Control Module).
- Select Programming.
- Select the Program SDM primary key to BCM procedure and follow the directions
displayed on the screen.
Perform the
Diagnostic Repair Verification
after completing the proceeding procedures.