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:

Servicing the Airbag-Equipped Vehicle
Airbags affect how the vehicle should be serviced. There are parts of the airbag system in several places around the vehicle. Your dealer and the service manual have information about servicing the vehicle and the airbag system. To purchase a service manual, see Service Publications Ordering I ...

Input and Output Speed Sensor Installation
Input and Output Speed Sensor Installation Callout Component Name 1 Input Speed Sensor Assembly Seals 2 Input Speed Sensor Assembly 3 Input Speed Sensor Bolt  ...

Crankshaft Rear Oil Seal Replacement
Special Tools EN-658 Rear Main Seal Installer For equivalent regional tools, refer to Special Tools. Removal Procedure If equipped with automatic transmission, remove the flex plate. Refer to Automatic Transmission Flex Plate Replacement. If equipped with a manual transmis ...