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:

Front Side Door Window Switch Bezel Replacement (Right Side)
Front Side Door Window Switch Bezel Replacement Callout Component Name Preliminary Procedure Remove the front side door trim. Refer to Front Side Door Trim Replacement. 1 Front Side Door Window S ...

Engine Oil Cooler Assemble
Caution: Refer to Fastener Caution. Install the engine oil filter cap (1) along with a NEW seal ring (2) and a NEW oil filter element (3) and tighten to  25 Y (18 lb ft). Install the engine oil pressure indicator switch (5) and ...

Input Speed Sensor Replacement
Removal Procedure Remove the control solenoid valve and transmission control module assembly. Refer to Control Solenoid Valve and Transmission Control Module Assembly Replacement. Remove the input speed sensor bolt (2) M6 x 23. Unlock t ...