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Vehicle Security Module (VSM) - Regular Cab

VEHICLE SECURITY MODULE (VSM) - REGULAR CAB







Removal

CAUTION: Electronic modules are sensitive to static electrical charges. If exposed to these charges, damage to the module may result.

NOTE:
- Prior to the removal of the module, it is necessary to upload the module configuration information to a scan tool. This information must be downloaded into the new vehicle security module (VSM) after installation. to carry out programmable module installation (PMI).
- For the VSM to accept the PMI procedure, the following conditions must be met:

a. the headlamp switch must be in the OFF position (must not be in the AUTOLAMP position, if equipped)
b. the key must be in the ON position
c. the driver door must be open
d. the doors must be unlocked electronically by pressing the door lock control switch to the UNLOCK position momentarily

Failure to follow this procedure will result in the PMI procedure to fail.

- The tire pressure monitoring system (TPMS) functionality is integral to the VSM.
- A new VSM is delivered in a "manufacturing mode" with 6 pre-set DTCs. These DTCs require that a successful configuration of the VSM occurs, then a successful TPMS sensor training occurs, then a successful self-test occurs, including the clearing of all DTCs. This is required in order to clear the 6 manufacturing mode DTCs. They are as follows:
- B2477 (Module Configuration Failure)
- B2868 (Left Front Tire Pressure Sensor Fault)
- B2869 (Right Front Tire Pressure Sensor Fault)
- B2870 (Right Rear Tire Pressure Sensor Fault)
- B2871 (Left Rear Tire Pressure Sensor Fault)
- C2780 (ECU in Manufacturer Sub-State)

1. NOTE: This step is only necessary if the VSM is being replaced.

Upload the module configuration information from the VSM into the scan tool.

2. Turn the key to the OFF position.
3. Remove the LH B-pillar trim panel.
4. Disconnect the 2 VSM electrical connectors.
5. Remove the 2 screws and the VSM.

Installation

1. NOTE: If it is necessary to install new VSM mounting screw J-clips, they are available using part number W520822.

Position the VSM and install the 2 screws.
- Tighten to 7 Nm (62 lb-in).

2. Connect the 2 VSM electrical connectors.

3. NOTE: If the VSM is not being replaced, this is the last step that is necessary.

Install the LH B-pillar trim panel.

4. NOTE: When successful, this step provides the calibration necessary for the VSM operation and clears DTC B2477. The clearing of the DTC indicates the calibration data has been successfully downloaded to the VSM.

Download the VSM configuration information from the scan tool to the VSM.

5. NOTE: When successful, this step clears DTCs B2868, B2869, B2870 and B2871. The clearing of these DTCs indicates the VSM has recognized the tire pressure sensors during the training procedure.

Train the tire pressure sensors.

6. NOTE:
- DTC C2780 will not clear if any other DTCs are present in the VSM.
- This step is required to clear DTC C2780, allow the VSM to exit the manufacturing mode, and to make sure there are no other concerns with the newly programmed VSM.

Carry out the VSM on-demand self-test by clearing the DTCs and then retrieving the DTCs to confirm all DTCs have been cleared.
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