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:

Airbag Instrument Panel Module Replacement
Airbag Instrument Panel Module Replacement Callout Component Name Warning: Refer to SIR Inflator Module Handling and Storage Warning. Warning: Refer to SIR Warning. Preliminary Procedure Disable t ...

Hydraulic Brake Component Operation Visual Inspection
Disc Brake With the tire and wheel assemblies removed and the brake rotors retained by wheel lug nuts, visually inspect the brake caliper piston dust boot (2) sealing area to ensure that there are no brake fluid leaks. If any evidence of a brake fluid leak is p ...

Manual HVAC Description and Operation
The air temperature and the air delivery description and operation are divided into five areas: HVAC Control Components Air Speed Air Delivery Heating and A/C Operation Recirculation Operation HVAC Control Components HVAC Control Assembly The HVAC control assembly inter ...