Conditions for Running the DTC
WARNING: This page is about a different car, the 2003 GMC Safari and 2003 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
- Engine run time more than 20 seconds and above 1200 RPM.
- Vehicle speed above 8km/h (5 mph).
The PCM detects an improper voltage below 11 volts for 5 seconds.