Conditions for Setting the DTC
WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Condition 1:
- At start-up, all pressure switches do not indicate pressure.
- Engine speed is greater than 500 RPM for 6 seconds or 400 RPM for 15 seconds.
- The selected range is not neutral or park for 4 seconds.
Condition 2:
- Any 2 of the PS1, PS2 or PS3 switches indicate that the corresponding shift valve was stroked and a loss pressure is indicated.
- Transmission turbine speed is greater than 400 RPM.
- Transmission output speed is less than 80 RPM.