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:

Rear Window Panel Trim Replacement
Rear Window Panel Trim Replacement Callout Component Name Preliminary Procedures Remove the body lock pillar upper trim panel. Refer to Body Lock Pillar Upper Trim Panel Replacement. Remove the body rear seat back trim pa ...

Drive Range, First Gear Engine Braking (Gen 2)
Note: Some models of the 6T30/40/45/50 automatic transmission are equipped with an electric auxiliary fluid pump for use in hybrid vehicles (BAS+). Hybrid vehicles do not require internal combustion engine (ICE) operation at all times. After a successful engine start, the hybrid powertrain con ...

Clutch and Differential Housing Disassemble
Special Tools M-680770 Universal Sliding Mallet R-0007758 Holding Fixture R-0407008 Counter Shaft Bearing Remover R-0407010 Input Shaft Needle Bearing Puller and Driver R-0407013 Gearshift Device Bushing Puller R-0007761 Universal Handle for Pullers and Installers T-0207928 Retai ...