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:

Cruise Control Description and Operation
Cruise control is a speed control system that maintains a desired vehicle speed under normal driving conditions at speeds above 40 km/h (25 mph). Steep grades may cause variations in the selected vehicle speeds. The following are the main components of the Cruise Control System: ...

Exhaust Manifold Installation
Clean the exhaust manifold sealing surface. Install a NEW exhaust manifold gasket (1) to the cylinder head. Caution: Refer to Fastener Caution. Caution: Refer to Torque-to-Yield Fastener Caution. Install the exhaust manifold (3) and tighten the NEW nu ...

Air Cleaner Assembly Replacement
Air Cleaner Assembly Replacement Callout Component Name 1 Air Cleaner Outlet Duct Clamp. Procedure Loosen clamp and remove air cleaner outlet duct from air cleaner assembly. 2 Mass ...