Autel MK808S Reset Volvo Transmission Fluid Change Counter

Just did the transmission fluid change in this Volvo, we now need to tell the TCM that it has new fluid. So we're going to go ahead and do that real quick. You'll need a bidirectional scanner like Autel MaxiCOM MK808S, not just an OBD2 reader. Cause it'll work on many different kinds of active tests. MK808S is a relatively inexpensive one that I got.

 

Diagnostics >> VOLVO >> Accept >> Automatic selection >> Read >> OK >> AW50/51AWD >> Yes >> Hot functions >> Trans adaption >> Resetting the counter for - gearbox oil change

Resetting transmission fluid change counter.

 

Hint: The transmission control module(TCM) has a counter for the oil quality. The counter counts up if the transmission is exposed to too high a load or an ambient temperature that is too high. If the counter is not reset when the oil is drained or changed, there is a risk that a diagnostic trouble code(DTC) will be stored in faulty circumstances. Therefore it is important that the "Transmission oil change" counter is reset.

 

Note! This applies only when the transmission fluid is changed and when the fluid is changed when repairs are carried out to the transmission temperature sensor.

 

- Ignition on.

 

OK >> Resetting counter transmission oil

Operation done.

 

Here you can also reset adaptation to zero. I'm not going to do that because I did it last time. But most people recommend to do both at the same time. Whatever, pretty easy for the Autel MK808Z scanner.

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