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:

Rear Side Door Window Rear Guide Replacement
Rear Side Door Window Rear Guide Replacement Callout Component Name Preliminary Procedure Remove the rear side door trim panel. Refer to Rear Side Door Trim Replacement. 1 Rear Side Door Window R ...

Drive Range, Fifth Gear Default (Gen 2)
If the transmission encounters an electrical component malfunction, the transmission will default to Fourth gear. All solenoids will default to their normal state. If the torque converter clutch is applied, it will release. The transmission will remain in Drive Range?Fourth Gear Default until ...

Automatic Transmission Flex Plate Removal
Special Tools EN-652 Automatic Transmission Flex Plate Holder For equivalent regional tools, refer to Special Tools. Install the EN-652 holder  (1) to hold the automatic transmission flex plate (2). Loosen the 6 automatic transmission flex plate bolts. Re ...