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Daf XF 105 (2008) - Restoring Adblue System, -18°C Temperature Issue & DMCI Not Detecting Errors

kisiol 8748 15
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 16728945
    kisiol
    Level 20  
    Hello. The CEO bought Dafa xf 105 today, 2008. The car seems to be in working order, but it turned out that it has adblue cut off. When connecting a computer everything connects nicely, but the temperature adblue shows -18 degrees. It looks like a resistor is installed, but the second thing after removing the adblue fuse motor (DMCI) does not see any problems. Only the exhaust warning system lights up, at the same time the eas system does not record any errors. Maybe someone knows where to look for soldered resistor and why dmci doesn't see problems with adblue. I will add that the nox sensors are removed from the car.
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  • #2 16731465
    stanisławpiotr
    Level 32  
    There are various methods of cheating the DMCI system. First look, find out if there is an emulator in the car.
  • #3 16731602
    kisiol
    Level 20  
    the car does not have an emulator, most likely an adblue resistor is installed because it shows -18 only where to look for it. And what is made of dmci is unknown.
  • #4 16732009
    mariomalinie
    Level 19  
    kisiol wrote:
    probably an adblue temp resistor is put on because it shows -18


    Is the -18 temperature in the tank or in the adblue module?
  • #5 16732242
    stanisławpiotr
    Level 32  
    It's definitely about the tank, it's best to check the sensor resistance on the tank connector.
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  • #6 16732260
    kisiol
    Level 20  
    That's exactly what the tank is about. Which pins can be from the temperature sensor. How to restore dmci to its original state so that it can see adblue. Normal programming will solve the problem.
  • #7 16732870
    kwantor
    Level 38  
    You have to mount everything because you write that there is no NOX probe, and diagnostics.
  • #8 16732891
    kisiol
    Level 20  
    Ok but diagnostics even without probes come out with zero errors in adblue and dmci
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  • #9 16733410
    stanisławpiotr
    Level 32  
    This is certainly a hidden emulator somewhere, and maybe therefore it has been reprogrammed dmci.
  • #10 16733428
    kisiol
    Level 20  
    There is no 100% thoroughly searched car for this emulator. Secondly, as if it were an emulator, diagnostics would not be possible. Always if the emulator is a fuse removed.
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  • #11 16733817
    mariomalinie
    Level 19  
    I can tell you on which pins of the adblue module to check the resistance when looking for a resistor, but I think that someone else buried something more ... just removing the resistor is of little use. If you have disconnected Nox sensors and the driver does not see the error, while the emulator is missing, then probably someone went a step further and programmed the adblue system.
  • #12 16733840
    kisiol
    Level 20  
    Give these pins if you can. Program with dmci ok but how to program with esa. And there are no mistakes.
  • #13 16733857
    mariomalinie
    Level 19  
    Check the resistance between pins 18 and 19 of the adblue module. In the table you have given what should be the values depending on the temperature.

    Daf XF 105 (2008) - Restoring Adblue System, -18°C Temperature Issue & DMCI Not Detecting Errors Daf XF 105 (2008) - Restoring Adblue System, -18°C Temperature Issue & DMCI Not Detecting Errors
  • #14 16738714
    decard86
    Level 11  
    hmm, how would you give your vin number?

    it seems to me that your car model did not have factory noxes because I saw such Dafas.

    At 99%, the resistor is connected to the cable exiting the adblue tank. It is a four-pin cube.

    Two pins are responsible for the AdBlue level and another two for the temperature. I don't think anyone in a car from 2008 did such a big deal about modifying a program in a module.
  • #16 16831044
    MobilTruck
    Level 31  
    Late but I'll write. There is a program that you can process (remove adblue error tables) from the contents of flash memory, and probably in this case it was done.

Topic summary

The discussion revolves around a 2008 Daf XF 105 truck experiencing issues with its AdBlue system, specifically showing a temperature reading of -18°C and not detecting errors in the DMCI after the AdBlue fuse was removed. Participants suggest that a resistor may be installed to bypass the AdBlue system, and they discuss the possibility of an emulator being present. The focus is on locating the resistor, checking the resistance of the temperature sensor, and restoring the DMCI to recognize the AdBlue system. Various technical checks, including pin resistance measurements and programming solutions, are proposed to address the issues.
Summary generated by the language model.
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