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:

Heated Seats Description and Operation
Heated Seat Components The driver and passenger heated seats each consist of the following components: Left heated seat switch Right heated seat switch HVAC control module Seat heating control module Seat cushion heating element Seat back heating element Seat cushion ...

Rear Wiper/Washer System Description and Operation
The rear window wiper motor is located inside the hatchback door and is directly connected to the rear window wiper. Ignition voltage is supplied to the rear wiper motor through the wiper switch. The hatchback rear window washer systems equipped with a separate washer fluid pump, hose, and noz ...

Tire Pressure Indicator Sensor Learn
Special Tools EL-46079 Tire Pressure Monitor Diagnostic Tool EL-50448 Tire Pressure Monitor Sensor Activation Tool For equivalent regional tools, refer to Special Tools. Learn Mode Description The tire pressure monitor system uses the instrument cluster, body control module (B ...