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:

Special Tools (MIT Tool Instructions)
Bluetooth Pairing for Vehicles with Radio RPO: UF7 Either reset the pin code on the radio to 0000, or go under Device Info on the radio and see what the pin code is (to enter it later on the MIT). Turn the BT discoverable ON in the radio Bluetooth settings. Press Pair De ...

Backup Lamp Switch Replacement
Backup Lamp Switch Replacement Callout Component Name Preliminary Procedure Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection. Without draining the coolant or removing ...

Clutch Master Cylinder Reservoir Hose Replacement
Removal Procedure Note: Before disconnecting the reservoir tank hose, remove the clutch/brake fluid from the reservoir tank. Remove the clutch master cylinder reservoir hose (1) from the reservoir tank. Remove the clutch master cylinder reservoir ...