Circuit Description
WARNING: This page is about a different car, the 2002 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
Ignition 3 input to the body control module BCM from the ignition switch, is used to determine the power mode the vehicle is in. When the BCM senses that the ignition 3 input is inactive when ignition 1 is active and the engine is running, DTC B1379 sets.