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 Wheelhouse Liner Replacement (Front)
Front Wheelhouse Liner Replacement Callout Component Name Preliminary Procedure Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation. 1 Front Wheelhouse Liner Scr ...

Engine Coolant Fan Replacement (LDE/LUW)
Removal Procedure Unclip transmission cooler lines from shroud if equipped. Unclip radiator surge tank outlet hose from fan shroud. Disconnect the engine coolant fan wiring harness. Note: You stand against driving direction. Unclip the engine coolant fan ...

Evaporative Emission Canister Replacement
Removal Procedure Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle. Remove the EVAP canister cover fasteners (1) and cover (2). Warning: Do not breathe the air through the EVAP component tubes or hoses. The fuel vapors inside t ...