Conditions For Running 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.
- No TFP manual valve position switch DTC P1810.
- Engine speed is greater than 450 RPM.
- Time since the last gear range change is greater than 6 seconds.
- Time since the last 4WD low state change is greater than 6 seconds.
- Transmission output speed rise does not exceed 600 RPM within 2 seconds.