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:

Cargo Center Courtesy Lamp Bulb Replacement (Hatchback)
Cargo Center Courtesy Lamp Bulb Replacement Callout Component Name 1 Rear Compartment Courtesy Lamp Refer to Rear Compartment Courtesy Lamp Replacement 2 Cargo Lamp Bulb ...

Piston, Connecting Rod, and Bearing Installation
Special Tools EN-470-B Angular Torque Wrench For equivalent regional tools, refer to Special Tools. Adjust the piston ring joints as follows: Upper compression ring (1). Lower compression ring (4). Oil rings (2) or (3). Oil ring spacer (5). ...

Gears Cleaning and Inspection (Gen 1)
Gears Warning: Wear safety glasses to avoid injury when using compressed air or any cleaning solvent. Bodily injury may occur if fumes are inhaled or if skin is exposed to chemicals. Clean the following gears in a suitable solvent and air dry all the p ...