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:

Front Brake Caliper Bracket Replacement
Removal Procedure Warning: Refer to Brake Dust Warning. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation. Note: DO NOT use any ai ...

Exhaust Camshaft Removal
Remove the camshaft bearing cap bolts in a spiral sequence as shown one turn at a time until there is no spring tension pushing on the camshaft. Note: Mind the markings on the camshaft bearing caps to ensure they will be installed in the same position. Remove the ...

Automatic Transmission Range Selector Lever Replacement
Removal Procedure Set the park brake and chock the wheels. Disconnect the transmission range selector lever cable terminal (1) from the transmission manual shift lever pin. Press the locking tabs inward in order to release the transmission range selector lev ...