Conditions for Setting the DTC
WARNING: This page is about a different car, the 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.
The system logs the DTC if the front propshaft input indicates a speed of less than 16 RPM for 30 seconds, while all of the following are true:
- The transmission is NOT in PARK/NEUTRAL.
- The engine is running.
- The front axle is engaged.
- The rear propshaft speed exceeds 512 RPM.
- Vehicle speed on Class 2 Data bus exceeds 16 km/h (10 mph).