Removal And Installation: Removal
To avoid serious or fatal injury on vehicles equipped with side curtain airbags, disable the Supplemental Restraint System (SRS) before attempting any Occupant Restraint Controller (ORC) diagnosis or service. The ORC may contain a rollover sensor, which enables the system to deploy the side SRS components in the event of a vehicle rollover event. If an ORC containing a rollover sensor is accidentally rolled during service while still connected to battery power, the side SRS components will deploy. 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.
To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS) before attempting any steering wheel, steering column, airbags, airbag curtains, knee blocker, seat belt tensioner, impact sensor or instrument panel component diagnosis or service. Disconnect the Intelligent Battery Sensor (IBS)/negative battery cable assembly from the negative battery post, 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.
To avoid serious or fatal injury, never strike or drop the Occupant Restraint Controller (ORC), as it can damage the impact sensor or affect its calibration. The ORC contains the impact sensor, which enables the system to deploy the SRS components. If an ORC is accidentally dropped during service, the module must be scrapped and replaced with a new unit. Failure to observe this warning could result in accidental, incomplete, or improper SRS component deployment.
If this Electronic Control Unit (ECU) is being replaced with a new unit, use a diagnostic scan tool to perform the Flash Programming Procedure (if available). This will confirm that the module is updated to the latest applicable software level.
- Disconnect and isolate the negative battery cable. Wait two minutes for the system capacitor to discharge before further service.
- Remove the center floor console. Refer to CONSOLE, FLOOR, REMOVAL AND INSTALLATION .
- Disconnect the wire harness connectors (1a and 1b) from the rearward-facing end of the Occupant Restraint Controller (ORC) (1c). To disconnect the wire harness connector from the ORC, depress the release tab and lift the lever arm on the connector.
- Remove the three nuts (2a) that secure the ORC to the weld studs on the floor panel center tunnel.
- Lift the ORC off of the weld studs and remove it from the vehicle.NOTE:
Do not strike or shake the ORC. Do not connect the wire harness connectors to the ORC before having correctly secured the ORC. Make sure that the battery is disconnected.