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:

Overview (Radio with CD/USB)
1. /VOL (Power/Volume) Turns the system on or off and adjusts the volume. 2. (Eject) Removes a disc from the CD slot. 3. Buttons 1−6 Radio: Saves and selects favorite stations. 4. AUX Port 3.5 mm (1/8 in) connection for external devices. 5. Push/MENU/TUNE Ra ...

Airbag Steering Wheel Module Replacement
Removal Procedure Warning: Refer to SIR Inflator Module Handling and Storage Warning. Warning: Refer to SIR Warning. Disable the SIR system. Refer to SIR Disabling and Enabling. Rotate the steering wheel 180 degrees. Using a bl ...

Engine Oil Cooler Inlet Pipe Replacement (LUW)
Removal Procedure Drain the cooling system. Refer to Cooling System Draining and Filling. Remove the exhaust manifold with catalytic converter. Refer to Exhaust Manifold with Catalytic Converter Replacement. Remove the engine oil cooler pipe bolts (1) an ...