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:

Starter Switch Check
Warning When you are doing this inspection, the vehicle could move suddenly. If the vehicle moves, you or others could be injured. 1. Before starting this check, be sure there is enough room around the vehicle. 2. Apply both the parking brake and the regular brake. Do not use the accelerator p ...

Drum Brake Adjustment
Special Tools CH-21177-A Drum to Brake Shoe Clearance Gauge For equivalent regional tools, refer to Special Tools. Warning: Refer to Brake Dust Warning. Ensure the park brake lever is in the fully released position. Remove the front floor console cupholder insert. Note ...

Instrument Panel Fuse Block Access Hole Cover Replacement (With AAL)
Instrument Panel Fuse Block Access Hole Cover Replacement Callout Component Name 1 Instrument Panel Fuse Block Access Hole Cover Procedure Grasp the lower edge of the fuse block cover and pull outward disengaging ...