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:

Tread Wear Indicators Description
The original equipment tires have tread wear indicators that show when you should replace the tires. The location of these indicators are at 60 degree intervals around the outer diameter of the tire. The indicators appear as a 6 mm (0.25 in) wide band when the tire trea ...

Water Pump Pulley Installation
Note: Counterhold the crankshaft balancer. The belt has to be installed for this procedure. Install the water pump pulley (2) to the water pump (3). Caution: Refer to Fastener Caution. Install the 3 water pump pulley bolts (1) with lockin ...

Throttle Body Heater Inlet Hose Replacement (LUW)
Throttle Body Heater Inlet Hose Replacement Callout Component Name Preliminary Procedure Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement. Drain the cooling system. Refer to Cooling ...