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:

Driver or Passenger Seat Shoulder Belt Replacement (with A69)
Driver or Passenger Seat Shoulder Belt Replacement Callout Component Name Warning: Refer to SIR Warning. Warning: Refer to SIR Inflator Module Handling and Storage Warning. Warning: Refer to SIR ...

Brake Rotor Assembled Lateral Runout Measurement
Special Tools CH-41013 Rotor Surfacing Kit CH-42450-A Wheel Hub Resurfacing Kit CH-45101 Hub and Wheel Runout Gauge CH-45101-100 Conical Brake Rotor Washers For equivalent regional tools, refer to Special Tools. Warning: Refer to Brake Dust Warning. Note: B ...

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 ...