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:

Rear Compartment Side Trim Replacement - Right Side (Sedan)
Rear Compartment Side Trim Replacement - Right Side Callout Component Name Preliminary Procedures Remove the rear compartment floor panel carpet. Refer to Rear Compartment Floor Panel Carpet Replacement. Remove the rear c ...

Parking Brake Adjustment (Drum Brake)
Note: The park brake cable adjusting nut is a nylon lock type. Use ONLY HAND TOOLS whenever tightening or loosening the adjusting nut. Apply and fully release the park brake several times. Verify that the park brake lever releases completely. Turn ON the ignition. Verify the red B ...

Air Conditioning Compressor and Condenser Hose Replacement (LUW)
Removal Procedure Recover the refrigerant. Refer to Refrigerant Recovery and Recharging. Disconnect the A/C refrigerant pressure sensor electrical connector. Remove air conditioning compressor and condenser hose nut (1). Remove air conditioning compressor ...