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:

Transmission Indicators and Messages
The following transmission-related indicators and messages may be displayed on the Instrument Panel Cluster (IPC). For a complete listing and description of all vehicle indicators and messages, refer to Indicator/Warning Message Description and Operation. "TRANSMISSION HOT IDLE ...

Electronic Brake Control Module Replacement
Removal Procedure Warning: Refer to Brake Fluid Irritant Warning. Caution: Refer to Brake Fluid Effects on Paint and Electrical Components Caution. Remove the battery tray. Refer to Battery Tray Replacement. Disconnect the electronic brake control module (EBC ...

Automatic Transmission Fluid Pressure Test Hole Plug Replacement
Automatic Transmission Fluid Pressure Test Hole Plug Replacement Callout Component Name 1 Fluid Pressure Test Plug Caution: Refer to Component Fastener Tightening Caution. Tighten 12 Y (106& ...