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:

Parking Brake Adjustment (Drum Brake)
Note: The park brake cable adjusting nut is a nylon lock type. Use ONLY HAND TOOLS whenever tightening or loosening the adjusting nut. Apply and fully release the park brake several times. Verify that the park brake lever releases completely. Turn ON the ignition. Verify the red B ...

Front Wheel Drive Shaft Seal Replacement - Torque Converter Housing Side
Front Wheel Drive Shaft Seal Replacement - Torque Converter Housing Side Callout Component Name 1 Front Wheel Drive Shaft Oil Seal Assembly Special Tools DT-23129 Universal Seal Remover DT-47790 Seal Insta ...

Crankshaft Balancer Installation
Special Tools EN-470–B Angular Torque Wrench EN-956?E Extension EN-49979 Crankshaft Shock Mount Retainer For equivalent regional tools, refer to Special Tools. Note: The crankshaft balancer flange must fit to the hexagon of the oil pump rotor (2) and to the two ...