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:

How the System Works
The LDW camera sensor is on the windshield ahead of the rearview mirror. To turn LDW on and off, press the LANE DEPART button on the steering wheel. The control indicator will light when LDW is on. When the vehicle is started, the LDW indicator on top of the instrument panel to the right o ...

Throttle Body Assembly Installation
Install a NEW throttle body seal. Install the throttle body (1). Caution: Refer to Fastener Caution. Install the 4 throttle body bolts (2) and tighten to  8 Y (71 lb in). ...

Special Tools
Illustration Tool Number/Description CH 9127-E SA 9127-E Fuel Pressure/Flow Adapter CH 9182-E SA 9182-E Electronic Fuel Injector Tester ...