Conditions for Setting the DTC

WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

The fault code will set when the fog lamp enable circuit is active and a short to battery positive voltage, an open or a short to ground is present.
The condition above must be present for more than 0.3 seconds.
If the short to battery positive voltage is on the output side of the fog lamp switch, the fault will only set when the fog lamp switch is in the ON position.