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:

Ball Joint Inspection
Caution: Refer to Vehicle Lifting and Jacking Caution. Raise the front of the vehicle to allow the front suspension to hang free. Grasp the tire at the top and the bottom. Move the top of the tire in an in-and-out motion. Look for any horizontal movement of the knuckle relativ ...

Front Camber Adjustment
Note: DO NOT grind the front strut bores for the bolts to allow adjustment of the front camber. There are service bolts available to allow the front camber to be adjusted, if needed. If the front camber is out of specifications, perform the following: Remove the f ...

Air Conditioning Compressor Replacement (LDE, LUW, LWE)
Air Conditioning Compressor Replacement Callout Component Name Preliminary Procedure Recover the refrigerant. Refer to Refrigerant Recovery and Recharging. Raise and support the vehicle. Refer to Lifting and Jacking the ...