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.
The fog lamp relay is controlled by the body control module (BCM). Positive voltage is applied to the relay coil when the headlamp switch is in the park or head position. The BCM grounds the fog lamp relay control circuit in order to turn on the fog lamp relay. When the fog lamp relay control circuit opens or becomes shorted to ground without being commanded on by the BCM, DTC B2532 is set.