- Home DTCP0871 Code: P0871 System: Powertrain (Covers functions that include engine, transmission and associated drivetrain accessories) Category: ISO/SAE (It is core DTCs and applied to most manufacturers. A common fault message is assigned to this code.) Component: Transmission Definition: Chevrolet: Pressure Switch E or Solenoid Circuit.
- P0871 DODGE Meaning The Powertrain Control Module (PCM) uses three pressure switches to monitor the fluid pressure in the LR, 2/4, and OD clutch circuits. The pressure switches are continuously monitored for the correct states in each gear.
- The Chrysler 300M Enthusiasts Club is a member-based, non-profit social and recreational club, bringing together people from around the world who are passionate about the Chrysler 300M, Dodge Intrepid, Chrysler Concorde, Chrysler LHS, and Eagle Vision.
P0871 Ram
P0871 DODGE Meaning. The Powertrain Control Module ( PCM) uses three pressure switches to monitor the fluid pressure in the LR, 2/4, and OD clutch circuits. The pressure switches are continuously monitored for the correct states in each gear.
There may be a transmission performance concern on some 2014-2017 Spark models equipped with the CVT7 continuously variable-ratio automatic transmission (RPOs M4M, MR8). (Fig. 12) The Check Engine MIL may be illuminated and DTCs P0871 (Transmission Fluid Pressure Switch 3 System Performance) and P2714 (Pressure Control Solenoid Valve 4 Stuck Off—Hydraulic/Mechanical Problem) may be set in the Transmission Control Module (TCM).
If DTCs P0871 and P2714 are set in the TCM, clear the codes and road test the vehicle. If the codes do not reset, no repairs should be made.
Fig. 12
When either DTC P0871 or P2714 sets, the TCM commands the auxiliary gearbox into 2nd gear. If the codes do reset after the road test, replace the transmission fluid pressure switch. Refer to the appropriate Service Information.
Replacing the Switch
After removing the control valve body cover, remove the fluid strainer from the control valve body and discard the O-ring from the fluid strainer. A new O-ring must be installed to the fluid strainer.
Two fluid pressure switch harness bracket bolts secure the switch. Disconnect the fluid pressure switch connector to remove the switch from the control valve body. (Fig. 13)
Fig. 13
When reinstalling the control valve body cover, do not reuse the gasket. Install the 14 cover bolts by hand and then tighten all bolts to specification in the specified sequence. (Fig. 14)
Fig. 14
Currently, the transmission fluid pressure switch must be ordered from the Warranty Parts Center (WPC). Refer to #PIP5521A for the necessary order form and for additional information.
– Thanks to Terry Neuendorf
There may be a transmission performance concern on some 2014-2017 Spark models equipped with the CVT7 continuously variable-ratio automatic transmission (RPOs M4M, MR8). (Fig. 12) The Check Engine MIL may be illuminated and DTCs P0871 (Transmission Fluid Pressure Switch 3 System Performance) and P2714 (Pressure Control Solenoid Valve 4 Stuck Off—Hydraulic/Mechanical Problem) may be set in the Transmission Control Module (TCM).
If DTCs P0871 and P2714 are set in the TCM, clear the codes and road test the vehicle. If the codes do not reset, no repairs should be made.
Fig. 12
When either DTC P0871 or P2714 sets, the TCM commands the auxiliary gearbox into 2nd gear. If the codes do reset after the road test, replace the transmission fluid pressure switch. Refer to the appropriate Service Information.
Replacing the Switch
After removing the control valve body cover, remove the fluid strainer from the control valve body and discard the O-ring from the fluid strainer. A new O-ring must be installed to the fluid strainer.
Two fluid pressure switch harness bracket bolts secure the switch. Disconnect the fluid pressure switch connector to remove the switch from the control valve body. (Fig. 13)
P0871 Dodge Dakota
Fig. 13
When reinstalling the control valve body cover, do not reuse the gasket. Install the 14 cover bolts by hand and then tighten all bolts to specification in the specified sequence. (Fig. 14)
P0871 Dodge
Fig. 14
P0871 62te
Currently, the transmission fluid pressure switch must be ordered from the Warranty Parts Center (WPC). Refer to #PIP5521A for the necessary order form and for additional information.
Ram P0871
– Thanks to Terry Neuendorf