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:

Starting the Vehicle
1. Aim the RKE transmitter at the vehicle. 2. Press and release . 3. Immediately after completing Step 2, press and hold for at least four seconds or until the turn signal lamps flash. When the engine starts, the parking lamps will turn on and remain on as long as the engine is running. The ...

Automatic Transmission Shift Lock Control Function Check
Warning When you are doing this inspection, the vehicle could move suddenly. If the vehicle moves, you or others could be injured. 1. Before starting this check, be sure there is enough room around the vehicle. It should be parked on a level surface. 2. Apply the parking brake. Be ready to ap ...

Crankshaft and Bearing Cleaning and Inspection
Special Tools EN-45059 Torque Angle Sensor Kit GE-571-B Dial Gauge For equivalent regional tools, refer to Special Tools. Crankshaft End Play, Check Note: Crankshaft attached with crankshaft bearing caps. Install the GE-571-B gauge  (1). ...