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:

Instrument Panel Lower Trim Pad Cover Replacement (Without AAL)
Instrument Panel Lower Trim Pad Cover Replacement Callout Component Name 1 Instrument Panel Lower Trim Pad Fastener (Qty:?€‰2) Caution: Refer to Fastener Caution. 2 Instrumen ...

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

Cooling Fan Description and Operation (LUV)
The engine cooling fan system is composed of one cooling fan, a series of 5 relays, the engine control module (ECM), and the associated wiring. The cooling fan assembly includes two resistors. This combination of components enables the ECM to operate the cooling fan at 3 speeds usi ...