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:

Roof Front Header Panel Replacement
Removal Procedure Warning: Refer to Approved Equipment for Collision Repair Warning. Note: The roof front header panel is made of Ultra High Strength Steel and should be replaced only at factory joints. Repairing or sectioning of this part is not recomme ...

Turbocharger Coolant Return Pipe Replacement (LUV)
Turbocharger Coolant Return Pipe Replacement Callout Component Name Preliminary Procedure Remove the turbocharger. Refer to Turbocharger Replacement. 1 Turbocharger Fastener Caution: Refer t ...

Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn the ignition to LOCK/OFF in each shift lever position. For automatic transmission vehicles, the ignition should turn to LOCK/OFF only when the shift lever is in P (Park). For manual transmission vehicles, the ignition should turn ...