Removal And Installation: Removal
If this Electronic Control Unit (ECU) is being replaced with a new unit, a diagnostic scan tool MUST be used to align the PROXI configuration data into the new ECU. Follow the routine outlined in the diagnostic scan tool for PROXI Configuration Alignment under Body Control Module (BCM) Miscellaneous Functions menu.
Disable the airbag system before attempting any steering wheel, steering column, or instrument panel component diagnosis or service. Disconnect and isolate the negative battery (ground) cable, then wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to follow these instructions may result in accidental airbag deployment and possible serious or fatal injury.
Illustration shown with instrument panel removed from view for clarity.
- Disconnect and isolate the negative battery cable. If equipped with an Intelligent Battery Sensor (IBS), disconnect the IBS connector first before disconnecting the negative battery cable.
- Lower the steering column. Refer to COLUMN, REMOVAL AND INSTALLATION
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- Disconnect the wire harness connector (3) from the Heating, Ventilation, and Air Conditioning (HVAC) module.
- Remove the screw (1) that secures the HVAC module to the housing.
- Remove the HVAC module (2).