Unit, Telematics Control: Removal
To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS) before attempting any steering wheel, steering column, airbag, seat belt tensioner, impact sensor or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the SRS. Failure to take the proper precautions could result in accidental airbag deployment.
On vehicles equipped with the high voltage system, disconnecting the 12-volt battery negative cable alone will not power down the 12-volt system. You must perform the 12-volt Power Down procedure before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
- Perform the 12-Volt Power Down procedure. Refer to ELECTRIC VEHICLE CONTROL SYSTEM, STANDARD PROCEDURE .
- Remove the cover (1) from the instrument panel. Refer to COVER, INSTRUMENT PANEL, REMOVAL
.
- Remove the nut (1) that secures the inboard end of the Telematics Control Unit (TCU) mounting bracket to the evaporator housing.
- Remove the screw (2) that secures the outboard end of the TCU mounting bracket to the instrument panel support structure.
- Rotate the TCU (4) far enough to access and disconnect the wire harness connector (3) from the TCU connector receptacle.
- Remove the TCU and mounting bracket from the vehicle as a unit.