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:

Replacing Safety Belt System Parts after a Crash
Warning: A crash can damage the safety belt system in the vehicle. A damaged safety belt system may not properly protect the person using it, resulting in serious injury or even death in a crash. To help make sure the safety belt systems are working properly after a crash, have them insp ...

Throttle Actuator Control (TAC) System Description
acceleratorpedalassemblyi/pappsensor1appsensor2ignitionvoltage(ifequipped)cruisecontrolswitch(ifequipped)(ifequipped)throttlebodybcmtpsensor1tpsensorreducedenginepowerlampthrottleactuatormotor The engine control module (ECM) is the control center for the throttle actuator control (TAC) system. ...

Range Selector Lever Cable Bracket Replacement
Removal Procedure Set the park brake and chock the wheels. Disconnect the range selector cable end (1) from the range selector lever. Disconnect the range selector cable (2) from the range selector cable bracket. Remove the transmission rang ...