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:

Safety Belt Use During Pregnancy
Safety belts work for everyone, including pregnant women. Like all occupants, they are more likely to be seriously injured if they do not wear safety belts. A pregnant woman should wear a lap-shoulder belt, and the lap portion should be worn as low as possible, below the rounding, throughout ...

Brake Pedal Travel Measurement and Inspection
Special Tools CH-28662 Brake Pedal Effort Gauge For equivalent regional tools, refer to Special Tools. With the ignition OFF and the brakes cool, apply the brakes 3–5 times, or until the brake pedal becomes firm, in order to deplete the brake booster power reserve. In ...

Engine Front Cover and Oil Pump Installation
Special Tools EN-952 Fixing Pin EN-953-A Fixing Tool EN-49977-100 Transmitter Disc Fixation EN-49977-200 Fixing Tool For equivalent regional tools, refer to Special Tools. Note: Mind the guide sleeves when installing engine front cover. Install the engine front ...