844 k.iii. Msn1DW844KAVHF679356 Transmision problems.when selecting reverse.dtops out. It also takes out forward also until you cycles key then forward comes back
Retrieve fault code(s) from monitor and covey them to us.
the codes retrieved are 522364-13 ,and 522383-2
Those are definitely transmission codes. I can't find them right now. What description is under each one?
522364 is trans clutch recalibration 522383 is clutch kr is slippage
Do you know how to access the service mode in the monitor? Ignition on, push and hold the select button (center button) until the words SERVICE MODE ACTIVATED appears on the screen. If the codes are stored, clear them. Run it to see what comes back. If they are active, ignore this step. First thing I would try is cycle the ignition ON/Off twice. That causes a communication and transfer of information (reconfiguration) from the VCU to the TCU in case the information was lost. After that enter the SERVICE MODE, then perform a transmission clutch calibration. See if that resolves the issue. If it does not, then transmission pressure checks are in order. Did you by chance remove the transmission filter and cut it open to see what is in it? See here on how to do that.