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:

Hub/Axle Flange and Wheel Stud Runout Inspection
Special Tools GE-8001 Dial Indicator Set , or equivalent Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle. Mark the location of the wheels to the wheel studs and mark the specific vehicle position on each tire and wheel – LF, LR, RF, RR. Remove the tire and ...

Ambient Air Temperature Sensor Replacement
\/\\//\\\\(in Ambient Air Temperature Sensor Replacement Callout Component Name Preliminary Procedures Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle. Remove the front bumper fascia opening lower c ...

Special Tools
Illustration Tool Number / Description CH?E9376 Holding Wrench CH?E9400 J-45859 Hub Spindle Remover DT-6332 Seal Protector DT- ...