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:

Taillamps, Turn Signal, Stoplamps, and Back-Up Lamps
Sedan Taillamp Shown, Hatchback Taillamp Similar Back-up Lamp Turn Signal Lamp Stop Lamp/Taillamp Sidemarker Lamp To replace one of these bulbs: Open the trunk. Remove the two screws, which secure the taillamp assembly. Remove the taillamp assembly by pulling it straight ...

Air Conditioning Compressor Oil Balancing
Draining Procedure Note: Drain and measure as much of the refrigerant oil as possible from the removed compressor. Drain the oil from both the suction and discharge ports of the removed compressor into a clean, graduated container. Rotate the compressor sha ...

Engine Block Cleaning and Inspection
Special Tools EN-8087 Cylinder Gauge For equivalent regional tools, refer to Special Tools. Clean the sealing material from the gasket mating surfaces (2). Clean the engine block (1) and lower crankcase in a cleaning tank with solvent appropriate for aluminum. Refer ...