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:

Reduced Engine Power Light
The reduced engine power light should come on briefly as the engine is started. If it does not come on, have the vehicle serviced by your dealer. This light, along with the malfunction indicator lamp, displays when a noticeable reduction in the vehicle's performance occurs. The vehicle c ...

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 . ...

Internal Components Removal
Internal Components Removal Callout Component Name 1 1??? Clutch Backing Plate Retainer Ring Warning: The retainer is under tension. Use care when removing or installing the retainer. Personal injury could r ...