Removal And Installation: Removal
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.
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.
- Disconnect and isolate the negative battery cable.
- Remove the steering column to gain access to the Electronic Steering Lock (ESL) module (1c). Refer to COLUMN, REMOVAL AND INSTALLATION .
- Remove the screws (1b) and extract the ESL module (1c) from its housing.
- Disconnect the steering column wire harness connector (2a) and remove the ESL module (1c) from the vehicle.