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:

How to Wear Safety Belts Properly
This section is only for people of adult size. There are special things to know about safety belts and children. And there are different rules for smaller children and infants. If a child will be riding in the vehicle, see Older Children  or Infants and Young Children. Follow those rules ...

Hydraulic Brake System Bleeding (Pressure)
Special Tools CH-29532 Diaphragm Type Brake Pressure Bleeder CH-35589-A Brake Pressure Bleeder Adapter Warning: Refer to Brake Fluid Irritant Warning. Caution: Refer to Brake Fluid Effects on Paint and Electrical Components Caution. Place a clean shop cloth beneath the b ...

Fuel Injection Fuel Rail Assembly Replacement
Removal Procedure Disconnect battery negative cable. Refer to Battery Negative Cable Disconnection and Connection. Remove engine cover. Refer to Engine Cover Replacement. Remove the fuel feed pipe from fuel injection fuel rail. Refer to Fuel Feed Pipe Replacement. Re ...