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 Outer Panel Replacement
Removal Procedure Note: According to different corrosion warranties, only the regional mandatory joining methods are allowed. Disable the SIR System. Refer to SIR Disabling and Enabling. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconn ...

Special Tools
Illustration Tool Number/ Description CH 28662 J 28662 Brake Pedal Effort Gauge CH 29532 J 29532 Diaphragm Pressure Bleeder CH̴ ...

Crankshaft Balancer Installation
Special Tools EN-470–B Angular Torque Wrench EN-956?E Extension EN-49979 Crankshaft Shock Mount Retainer For equivalent regional tools, refer to Special Tools. Note: The crankshaft balancer flange must fit to the hexagon of the oil pump rotor (2) and to the two ...