Chevrolet Sonic Repair Manual: Immobilizer

Ignition Lock Cylinder Replacement

Removal Procedure Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection. Remove the upper trim cover and the lower trim cover f ...

Immobilizer Description and Operation

The immobilizer system functions are provided by the body control module (BCM) and the engine control module (ECM), as well as any modules which store and report the environment identifier. When ...

Other materials:

Front Seat Outboard Seat Back Airbag Replacement
Front Seat Outboard Seat Back Airbag Replacement Callout Component Name Warning: Following the deployment of a side impact air bag, inspect the following parts for damage. Replace these parts if necessary: ...

Charging System Description and Operation
Electrical Power Management Overview The electrical power management system is designed to monitor and control the charging system and send diagnostic messages to alert the driver of possible problems with the battery and generator. This electrical power management system primarily ...

Automatic Transmission Shift Lock Control Function Check
Warning: When you are doing this inspection, the vehicle could move suddenly. If the vehicle moves, you or others could be injured. Before starting this check, be sure there is enough room around the vehicle. It should be parked on a level surface. Apply the parking brake. Be read ...