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:

Drivetrain and Front Suspension Frame Skid Plate Replacement
Removal Procedure Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle. Remove the mounting bolts?€‰(1) for the front suspension frame skid plate. Remove the front suspension frame skid plate?€‰(2). Installation Procedur ...

Cleanliness and Care
An automobile engine is a combination of many machined, honed, polished, and lapped surfaces with tolerances that are measured in ten thousandths of an inch. When any internal engine parts are serviced, care and cleanliness are important. A liberal coating of engine oil should be applied to fr ...

Clutch and Differential Housing Disassemble
Special Tools M-680770 Universal Sliding Mallet R-0007758 Holding Fixture R-0407008 Counter Shaft Bearing Remover R-0407010 Input Shaft Needle Bearing Puller and Driver R-0407013 Gearshift Device Bushing Puller R-0007761 Universal Handle for Pullers and Installers T-0207928 Retai ...