LEMON Manuals: Even more car manuals for everyone
Home >> Jeep >> 2013 >> Compass Limited, AWD, Trans Mfr CD CVT2L >> Repair and Diagnosis >> External Pages >> Different car >> Section 63 (Powertrain Control Module (Pcm) - Electrical Diagnostics - 42RLE Automatic Transmission) >> DTC Troubleshooting >> P0871-Od Pressure Switch Rationality >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2009 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes 
RELATED TIPM DTCS PRESENT
LOSS OF PRIME DIAGNOSTIC TROUBLE CODE (DTC) PRESENT
(T9) OD PRESSURE SIGNAL CIRCUIT OPEN
(T9) OD PRESSURE SIGNAL CIRCUIT SHORT TO GROUND
(T9) OD PRESSURE SIGNAL CIRCUIT SHORT TO VOLTAGE
TRANSMISSION SOLENOID/PRESSURE SWITCH ASSEMBLY
POWERTRAIN CONTROL MODULE

Always perform the 42RLE Pre-Diagnostic Troubleshooting procedure before proceeding. See  DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure  . 

PRESSURE SWITCH STATES

GEAR  L/R  2/4  OD 
R OPEN OPEN OPEN
P/N CLOSED OPEN OPEN
1st CLOSED OPEN OPEN
2nd OPEN CLOSED OPEN
D OPEN OPEN CLOSED
OD OPEN CLOSED CLOSED