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:

Lower Control Arm Replacement
Removal Procedure Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation. Remove the front wheelhouse rear liner. Refer to Front Wheelhouse Liner Replacement. Re ...

Engine Replacement
Special Tools EN-48244 Engine Assembly Remove/Install Pallet Supporter Removal Procedure Remove the battery and battery tray. Refer to Battery Tray Replacement. Relieve the fuel system pressure. Refer to Fuel Pressure Relief. Recover the refrigerant. Refer to Refrigera ...

Charge Air Cooler Outlet Air Hose Replacement
Removal Procedure Remove the front bumper fascia. Refer to Front Bumper Fascia Replacement. Loosen the clamp (1) at the charge air cooler outlet pipe (2) to throttle body (3). Disconnect the intake air pressure and temperature sensor harness connect ...