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:

Radio Antenna Base Replacement
Radio Antenna Base Replacement Callout Component Name Preliminary Procedure Lower the rear of the headlining trim panel. Refer to Headlining Trim Panel Replacement. 1 Radio Antenna Base Fastener ...

Stop and Turn Signal Lamp Bulb Replacement (Sedan)
Stop and Turn Signal Lamp Bulb Replacement Callout Component Name Preliminary Procedure Remove the tail lamp assembly. Refer to Tail Lamp Replacement. 1 Tail Lamp Socket Procedure Rotate the ...

Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement (1.4L)
Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement Callout Component Name Preliminary Procedures Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle. Remove the front bumper fascia opening ...