Conditions for Running the DTC
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
- Source voltage is 8.7-16.5 volts.
- The HVAC control module receives a RUN power mode message from the BCM over the class 2 serial data circuit.