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:

Instrument Panel Tie Bar Replacement
Removal Procedure Remove the Instrument panel assembly. Refer to Instrument Panel Assembly Replacement. Remove the steering column and wheel from the vehicle. Refer to Steering Column Replacement. Remove the air inlet grill panel. Refer to Air Inlet Grille Panel Replacem ...

Cooling Fan Description and Operation (LWE, LUW)
System Overview The engine cooling fan system is composed of one cooling fan, 2 relays, the engine control module (ECM), and the associated wiring. The cooling fan assembly includes 1 resistor mounted in the cooling fan shroud. The cooling fan resistor may be a stand alone compon ...

Crankshaft Front Oil Seal Replacement
Special Tools EN-960 Installer EN-45000 Remover Oil seal For equivalent regional tools, refer to Special Tools. Removal Procedure Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement. Place a drain pan underneath the front crankshaft seal area. ...