Condition No. 1 For Setting DTC P1810
WARNING: This page is about a different car, the 2002 GMC Cab & Chassis Sierra and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
DTC will set under one of the following conditions.
- The PCM detects an illegal TFP manual valve position switch state for 25.5 seconds.