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:

Rear Brake Backing Plate Replacement
Removal Procedure Warning: Refer to Brake Dust Warning. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation. Remove the rear wheel speed sensor, if equipped ...

Torque Steer Description
A vehicle pulls or leads in one direction during hard acceleration. A vehicle pulls or leads in the other direction during deceleration. The following factors may cause torque steer to be more apparent on a particular vehicle: A slightly smaller diameter tire on the right front increa ...

Mass Airflow Sensor Replacement
Mass Airflow Sensor Replacement Callout Component Name 1 Mass Air Flow Sensor Fasteners (Qty: 2) 2 Mass Air Flow Sensor Procedure Disconnect electrical connector After ...