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 Side Door Window Replacement
Front Side Door Window Replacement Callout Component Name Warning: Refer to Glass and Sheet Metal Handling Warning. Preliminary Procedures Remove the front side door trim panel. Refer to Front Side Door Tr ...

Water Outlet Replacement (LUV)
Removal Procedure Drain the engine coolant system. Refer to Cooling System Draining and Filling. Remove the following: Engine coolant air bleed hose (1) Engine coolant temperature sensor (2) and connector clip (3) Heated oxygen senso ...

Exhaust Front Pipe Replacement (LUV,LUW)
Removal Procedure Warning: Refer to Exhaust Service Warning. Remove the drivetrain and front suspension frame skid plate. Refer to Drivetrain and Front Suspension Frame Skid Plate Replacement. Disconnect the heated oxygen sensor-2. Refer to Heated Oxygen Sensor Rep ...