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:

Rear Compartment Lid Rear Hinge Replacement
Rear Compartment Lid Rear Hinge Replacement Callout Component Name Preliminary Procedures Remove the rear window trim panel. Refer to Rear Window Panel Trim Replacement. Remove the rear compartment lid. Refer to Rear Comp ...

Valve Lifter Installation
Special Tool EN-845 Suction Device For equivalent regional tools, refer to Special Tools. Note: Observe the correct locations. Note: Coat the sliding surfaces with NEW engine oil. Install the 16 valve lifter (1), using the EN-845 suction device . ...

Engine Coolant Temperature Sensor Replacement (Water Outlet)
Engine Coolant Temperature Sensor Replacement Callout Component Name Preliminary Procedure Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection. Drain the cooling system. Ref ...