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:

Taillamps, Turn Signal, Stoplamps, and Back-Up Lamps
Sedan Taillamp Shown, Hatchback Taillamp Similar 1. Back-up Lamp 2. Turn Signal Lamp 3. Stop Lamp/Taillamp 4. Sidemarker Lamp To replace one of these bulbs: 1. Open the trunk. 2. Remove the two screws, which secure the taillamp assembly. 3. Remove the taillamp assembly by pulling it stra ...

Engine Coolant Thermostat Housing Removal
Caution: Refer to Engine Coolant Thermostat Housing Caution. Remove the engine coolant thermostat housing retainer nut (4). Remove the engine coolant thermostat housing retainer (1). Remove the 4 engine coolant thermostat housing bolts (3). Remo ...

Oil Level Indicator Tube Replacement
Removal Procedure Note: If the engine oil level is at maximum, some oil may emerge when drawing out the oil dipstick guide tube. Place collecting basin underneath. Remove the oil level indicator tube bolt (1). Remove the oil level indicator tubeR ...