Conditions for Setting the DTC
WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
One of the following conditions will cause this DTC to set:
- The BCM detects a high voltage level on the control circuit of the DEFOG relay, while the relay is energized.
- The BCM detects a low voltage level or an open on the control circuit of the DEFOG relay, when commanding the relay ON.