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:

Airbag Sensing and Diagnostic Module Replacement
Airbag Sensing and Diagnostic Module Replacement Callout Component Name Warning: Refer to SIR Warning. Warning: Do not strike or jolt the inflatable restraint sensing and diagnostic module (SDM). Before apply ...

Drum Brake Adjusting Hardware Inspection
Warning: Refer to Brake Dust Warning. Visually inspect the adjuster actuator spring (1) for the following conditions: Excessive stretching Excessive bending Excessive corrosion Broken Missing If any of the conditions listed were found, the adjuster actu ...

Brake Pedal Position Sensor Replacement
Removal Procedure Remove the instrument panel lower trim pad cover. Refer to Instrument Panel Lower Trim Pad Cover Replacement. Disconnect the brake pedal position sensor electrical connector. Remove the brake pedal position sensor bolt (1). Remove t ...