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 Upper Front Trim Panel Replacement
Front Side Door Upper Front Trim Panel Replacement Callout Component Name 1 Front Side Door Upper Front Trim Panel Assembly Procedure Use the appropriate plastic trim tool to aid in the removal of the door tri ...

Cylinder Head Replacement
Special Tools BO-38185 Hose Clamp Pliers EN-45059 Angle Meter For equivalent regional tools, refer to Special Tools. Removal Procedure Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection. Relieve fuel system pressure. Re ...

Hydraulic Valve Lash Adjuster Replacement
Hydraulic Valve Lash Adjuster Replacement Callout Component Name Preliminary Procedures Remove the hydraulic valve lash adjuster arms. Refer to Hydraulic Valve Lash Adjuster Arm Replacement. 1 H ...