Trouble code P0846 means: A/T 2-4 Pressure Switch Circuit Malfunction
2/4 pressure is incorrect, or internal transmission faults exist
2/4 pressure switch circuit is open, shorted to ground or power
2/4 pressure switch is damaged or it has failed
TCM relay power circuit to L/R switch is open (loss of B+)
PCM/TCM has failed
This possible causes are to be checked to confirm the fault.Thats it. Thanks.
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