Anyone got the P2755 Transmission Fluid Controller Circuit High
#1
Anyone got the P2755 Transmission Fluid Controller Circuit High
Recently I got a P2755 on my 2012 Audi Q7 3.0 tdi. It's a CRCA engine.
Has anyone got this code, and a solution?
Has anyone got this code, and a solution?
#2
Got the solution if anyone else gets into this problem:
The multifunction switch on the gearbox, under the car had water inside. This caused rust in the connector pins and faulty signals.
Error message in display "Malfunction in Gearbox", Adaptive Cruise controll stopped working, Start/Stop and Error in Canbus, "Single wire mode".
In other Words, lots of funny faults!
Despite all this errors, the gearbox was fully functional - no jerky shifts or anyting!
New switches installed and all ok!
The multifunction switch on the gearbox, under the car had water inside. This caused rust in the connector pins and faulty signals.
Error message in display "Malfunction in Gearbox", Adaptive Cruise controll stopped working, Start/Stop and Error in Canbus, "Single wire mode".
In other Words, lots of funny faults!
Despite all this errors, the gearbox was fully functional - no jerky shifts or anyting!
New switches installed and all ok!
#3
Q7 gearbox malfunction
Hi
I am getting the same message on a 2013 Audi Q7, reset the code and then was all good for a few days then same message. We checked the connectors like you say and some pins had slight corrosion so cleaned up with some connector treatment but code came back. Which switches did you change? Was it both sides, gearbox and the switch from the car.
Many thanks in advance
I am getting the same message on a 2013 Audi Q7, reset the code and then was all good for a few days then same message. We checked the connectors like you say and some pins had slight corrosion so cleaned up with some connector treatment but code came back. Which switches did you change? Was it both sides, gearbox and the switch from the car.
Many thanks in advance
#4
Hi,
Interesting!
Unfortunately the Message came back after a little while. It seemed so obvious that the Connectors caused the fault.
We are still working on the issue. We will try to disconnect the trailer unit today to see if the faults still are there.
Do you also have the Canbus error, and the error code for the ACC heater (Z47)?
Interesting!
Unfortunately the Message came back after a little while. It seemed so obvious that the Connectors caused the fault.
We are still working on the issue. We will try to disconnect the trailer unit today to see if the faults still are there.
Do you also have the Canbus error, and the error code for the ACC heater (Z47)?
#5
Q7
So we did some more digging and it was saying gearbox cooler solenoid, so we found it and the plug was burned guessing by the faulty solenoid. Have ordered the plug and the solenoid will fit and let you know tomorrow. There were no other fault codes in the system only code was 12753 valve for transmission fluid cooler, that is the code with the dealer computer.
#6
So we did some more digging and it was saying gearbox cooler solenoid, so we found it and the plug was burned guessing by the faulty solenoid. Have ordered the plug and the solenoid will fit and let you know tomorrow. There were no other fault codes in the system only code was 12753 valve for transmission fluid cooler, that is the code with the dealer computer.
Is this Solenoid inside the gearbox? Do you have some photos?
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