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:

Front Side Door Window Replacement
Front Side Door Window Replacement Callout Component Name Warning: Refer to Glass and Sheet Metal Handling Warning. Preliminary Procedures Remove the front side door trim panel. Refer to Front Side Door Tr ...

Exhaust Manifold Cleaning and Inspection
Clean the exhaust manifold (1) in solvent. Warning: Wear safety glasses in order to avoid eye damage. Dry the exhaust manifold (1) with compressed air. An exhaust manifold leak or damage may cause an exhaust leak and may effect OBD II system perf ...

Transmission Case Cleaning and Inspection
Transmission Case Cleaning and Inspection Callout Component Name Caution: Do not use abrasive pads or bristle devices to clean the sealing surfaces. Abrasive pads produce a fine grit that can effect transmission func ...