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:

Hydraulic Brake System Bleeding (Pressure)
Special Tools CH-29532 Diaphragm Type Brake Pressure Bleeder CH-35589-A Brake Pressure Bleeder Adapter Warning: Refer to Brake Fluid Irritant Warning. Caution: Refer to Brake Fluid Effects on Paint and Electrical Components Caution. Place a clean shop cloth beneath the b ...

Park Brake Hardware Inspection
Warning: Refer to Brake Dust Warning. Visually inspect the park brake lever (1) and the lever pivot pin (2) for the following conditions: The lever being bent or broken at any point – particularly at the cable attachment A seized or binding condition ...

Heater Outlet Hose Replacement (LDE, LUW)
Special Tools BO-38185 Hose Clamp Pliers For equivalent regional tools, refer to Special Tools. Removal Procedure Drain the cooling system. Refer to Cooling System Draining and Filling. Disengage the heater outlet hose quick connect clip (1) at the heater ...