P0844

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2017-10-10

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Description:

• The fault code P0844 means that there is an intermittent issue in the circuit that controls the transmission fluid pressure sensor or switch A. This may cause problems with shifting or cause the transmission to enter into limp mode.

Possible Symptoms:

• Transmission may shift poorly or erratically

• Transmission may enter into limp mode

• Illuminated check engine light

• Reduced engine power or acceleration

• Transmission may slip or fail to engage properly

Possible Causes:

• Failed transmission fluid pressure sensor or switch A

• Faulty wiring or connections in the circuit

• Loose or corroded electrical connections

• Failed transmission control module (TCM)

Related Parts:

• Transmission Fluid Pressure Sensor: Gear fluid line delivers gear fluid/oil between the various gear parts that need lubrication. The Gear fluid line pressure Sensor monitors the fluid pressure in the line. Problems lead to difficulty in shifting gears

Possible Solutions:

• Replace the transmission fluid pressure sensor or switch A

• Check and repair any damaged wiring or connections

• Tighten or clean any loose or corroded electrical connections

• Replace the transmission control module (TCM) if necessary