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 Spring, Insulator, and Jounce Bumper Replacement
Rear Spring, Insulator, and Jounce Bumper Replacement Callout Component Name Preliminary Procedure Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle. 1 Rear Spring Proced ...

Turbocharger Removal
Special Tool EN-49942 Holding Wrench For equivalent regional tools, refer to Special Tools. Install the EN-49942 holding wrench  (2) to the turbocharger coolant feed pipe. Guide a ratchet wrench (1) along with an extension through EN-49942 holding wrench to the turbo ...

Intake Manifold Disassemble (1.6L LDE)
Remove the intake manifold absolute pressure sensor bolt. Remove the manifold absolute pressure sensor (1) from the intake manifold (2). Remove the intake manifold mount (2) from the intake manifold (1). Remove the throttle body seal (1). ...