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:

Front Side Door Window Outer Sealing Strip Replacement
Front Side Door Window Outer Sealing Strip Replacement Callout Component Name 1 Front Side Door Window Outer Sealing Strip Procedure Do Not remove the outside rearview mirror. Use the appropriate tool, lift th ...

Hydraulic Brake System Description and Operation
System Component Description The hydraulic brake system consists of the following: Hydraulic Brake Master Cylinder Reservoir Contains a supply of brake fluid for the hydraulic brake system. Hydraulic Brake Master Cylinder Converts mechanical input force into hydr ...

Wheel Alignment Measurement
Steering and vibration complaints are not always the result of improper alignment. One possible cause is wheel and tire imbalance. Another possibility is tire lead due to worn or improperly manufactured tires. Lead/pull is defined as follows: At a constant highway speed on a typical straight r ...