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:

Tire Pressure Indicator Sensor Replacement
Removal Procedure Raise the vehicle on a suitable support. Refer to Lifting and Jacking the Vehicle. Remove the tire/wheel assembly from the vehicle. Refer to Tire and Wheel Removal and Installation. Dismount the tire from the rim. Refer to Tire Dismounting and Moun ...

Front Brake Shield Replacement
Removal Procedure Warning: Refer to Brake Dust Warning. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle. Remove the front tire and wheel assembly. Refer to Tire and Wheel Removal and Installation. Remove the front brake rotor. Refer to ...

Master Cylinder Reservoir Replacement
Removal Procedure Warning: Refer to Brake Fluid Irritant Warning. Caution: Refer to Brake Fluid Effects on Paint and Electrical Components Caution. Remove the brake master cylinder. Refer to Master Cylinder Replacement. Remove and discard the b ...