Possible causes

– Transmission Solenoid/Pressure Switch harness is open or shorted
– Transmission Solenoid/Pressure Switch circuit poor electrical connection
– Faulty Transmission Solenoid/Pressure Switch
– Internal transmission damage
– Faulty Engine Control Module (ECM)
– Faulty Transmission Control Module (TCM)

Tech notes

There is a factory service bulletin for the following Dodge models:

2004 Dodge Dakota
2004-2005 Dodge Durango
2005 Dodge 300/Magnum
2005 Dodge Dakota

Dodge Factory Service Bulletin OBDII Code P0841

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)
– Transmission will not shift gears.

P0841 DODGE Description

Low/Reverse (LR).

The Transmission Control Module (TCM) has detected a pressure switch open or closed at an incorrect time.

DODGE Technical Service Bulletins for P0841 code