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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 172 ((Powertrain Control Module (Pcm) - Electrical Diagnostics - 41TE Automatic Transmission)) >> DTC Troubleshooting >> P0871-Od Pressure Switch Rationality >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2016 Dodge Journey and 2015 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
RELATED TCM POWER INPUT OR TRANSMISSION CONTROL RELAY DTCS PRESENT
LOSS OF PRIME DTC PRESENT
(T9) OD PRESSURE SIGNAL CIRCUIT OPEN
(T9) OD PRESSURE SIGNAL CIRCUIT SHORTED TO GROUND
(T9) OD PRESSURE SIGNAL CIRCUIT SHORTED TO VOLTAGE
TRANSMISSION SOLENOID/PRESSURE SWITCH ASSEMBLY
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  40/41TE PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE   . 

PRESSURE SWITCH STATES

GEAR L/R 2/4 OD
REVERSE OPEN OPEN OPEN
P/N CLOSED OPEN OPEN
1ST CLOSED OPEN OPEN
2ND OPEN CLOSED OPEN
DRIVE OPEN OPEN CLOSED
OD OPEN CLOSED CLOSED