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Home >> Chrysler >> 2009 >> 300 Signature Series >> Repair and Diagnosis >> External Pages >> Different car >> Section 270 (42RLE Automatic Transmission - Electrical Diagnostics) >> 42RLE - Electrical Diagnostics >> DTC Troubleshooting >> P0841-LR Pressure Switch Rationality >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2008 Dodge Magnum, 2008 Dodge Charger, and 2008 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes 
RELATED TIPM TCM POWER CONTROL CIRCUIT DTCS PRESENT
LOSS OF PRIME DTC PRESENT
(T50) L/R PRESSURE SWITCH SENSOR CIRCUIT OPEN
(T50) L/R PRESSURE SWITCH SENSOR CIRCUIT SHORT TO GROUND
(T50) L/R PRESSURE SWITCH SENSOR CIRCUIT SHORT TO VOLTAGE
TRANSMISSION SOLENOID/PRESSURE SWITCH ASSEMBLY
POWERTRAIN CONTROL MODULE

Perform 42RLE PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

PRESSURE SWITCH STATES

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