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 ...

Front Bumper Upper Impact Bar Replacement
Front Bumper Upper Impact Bar Replacement Callout Component Name Preliminary Procedure Remove the front bumper fascia. Refer to Front Bumper Fascia Replacement. 1 Front Bumper Impact Bar Bolt (Qt ...

Crankshaft Front Oil Seal Replacement
Special Tools EN-960 Installer EN-45000 Remover Oil seal For equivalent regional tools, refer to Special Tools. Removal Procedure Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement. Place a drain pan underneath the front crankshaft seal area. ...