Cadillac P1810: TFP Valve Position Switch Malfunction (4T80-E)
Is your scanner showing Cadillac P1810?
No worries. We'll show you what it means and how to deal with it.
Cadillac P1810: TFP Valve Position Switch Malfunction (4T80-E)
OVERVIEWWhat Does The Cadillac P1810 Code Mean?
Engine started, engine runtime over 5 seconds, system voltage over 10.0v, engine runtime over 5 seconds, Fuel Cutoff inactive, then during Condition 1 the PCM detected an invalid state of the Transmission Fluid Pressure (TFP) manual valve position switch circuit by deciphering the TFP manual valve position switch inputs.
What Are The Potential Causes Of The Cadillac P1810 Code?
Below are some potential causes of this DTC:
- Inspect the transmission linkage from the gear select lever to the manual valve for proper adjustment
- TFP valve position switch signal circuit is open or grounded
- TFP valve position switch circuit shorted to another signal
- TFP valve position switch is faulty
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> ACDelco 29546972 GM Original Equipment Automatic Transmission Fluid Pressure Switch
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
GM, 2013, Service Bullettin – Prior To Any Circuit Testing.
