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:

Brake Pedal Assembly Replacement
Removal Procedure Remove the battery tray. Refer to Battery Tray Replacement. Remove the power vacuum brake booster bolts (1). Remove the brake pedal assembly upper nuts (1) Remove the brake pedal assembly lower nuts (1) Remo ...

Steering Column Lower Trim Cover Replacement
Steering Column Lower Trim Cover Replacement Callout Component Name Preliminary Procedure Remove the instrument panel steering column upper trim cover. Refer to Steering Column Upper Trim Cover Replacement. ...

Automatic Transmission Flex Plate Removal
Special Tools EN-652 Automatic Transmission Flex Plate Holder For equivalent regional tools, refer to Special Tools. Install the EN-652 holder  (1) to hold the automatic transmission flex plate (2). Loosen the 6 automatic transmission flex plate bolts. Re ...