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:

Stop and Turn Signal Lamp Bulb Replacement (Sedan)
Stop and Turn Signal Lamp Bulb Replacement Callout Component Name Preliminary Procedure Remove the tail lamp assembly. Refer to Tail Lamp Replacement. 1 Tail Lamp Socket Procedure Rotate the ...

Fuel Pressure Sensor Replacement - Fuel Feed Pipe
Fuel Pressure Sensor Replacement - Fuel Feed Pipe Callout Component Name Preliminary Procedure Relieve the fuel system pressure. Refer to Fuel Pressure Relief. Remove the air cleaner assembly. Refer to Air Cleaner Asse ...

Main Shaft Assemble (Gen 1)
Special Tools 3-0207944 Main Shaft Tapered Bearing Insert Tool For equivalent regional tools, refer to Special Tools. Install the 4th gear bearing assembly (1). Note: The 3rd gear blocking ring lugs must be aligned with the 3rd/4th gear synchronizer assembly groov ...