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:

Body Waterleak Repair
Warning: If the vehicle interior is exposed to moisture and becomes soaked up to the level of the sensing and diagnostic module (SDM), the SDM and SDM harness connector must be replaced. The SDM could be activated when powered, which could cause airbag deployment and result in person ...

Fuel Tank Heat Shield Replacement
Removal Procedure Support the fuel tank with a suitable jack. Remove the fuel tank strap fasteners (1) and lower the fuel tank straps (2). Remove the fuel tank heat shield fasteners (1) and remove the fuel tank heat shield (2). ...

Camshaft Cover Installation
Clean the sealing surfaces. Note: The thickness of the sealing bead should be 2 mm (0.0787 in). Apply sealing compound to areas (1) and (2). Refer to Adhesives, Fluids, Lubricants, and Sealers. Note: The installation procedure sho ...