Conditions For Setting DTC P0503
WARNING: This page is about a different car, the 2002 GMC Yukon XL, 2002 GMC Sierra, 2002 Chevrolet Suburban, and 2002 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
DTC will set under the following conditions:
- The gear range is not Park or Neutral.
- The output shaft speed RPM has dropped greater than 1000 RPM for at least 4 seconds.