Conditions for Setting the DTC
WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
- The maximum allowable error of 1000 RPM in the cooling fan speed occurs for 100 seconds.
- The PCM detects that the cooling fan clutch is locked up.