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Caterpillar 950G series II

Discussion in 'Wheel Loaders' started by alaa, Mar 5, 2018.

  1. alaa

    alaa Well-Known Member

    Joined:
    Jan 31, 2017
    Messages:
    48
    Location:
    kasa
    Hi Gents,
    the Wheel Loader working in hot climate,So I would like to disable the Air inlet heater relay does the cat ET can do that from the ECM ?
    Thanks
     
    mante likes this.
  2. Austin2943

    Austin2943 Member

    Joined:
    May 25, 2017
    Messages:
    9
    Location:
    North Dakota
    If you are concerned about this you could just take the power wire off from the inlet heater to the relay. Fairly easy, if you take this wire off you will prevent codes from coming up in the ECM. ECM knows out to the relay but nothing beyond that, it can be tricked this way. You sure could turn it off if you have ET also. Much easier to simply remove the large power wire though.
     
    mante likes this.
  3. Nige

    Nige Senior Member

    Joined:
    Jun 22, 2011
    Messages:
    14,583
    Location:
    G..G..G..Granville...........!!
    If you can get hold of a Click Box (aka 4C-8195 Service Tool) you can enable/disable the air inlet heater in the Power Train ECM. Even without a Click Box you can perform the necessary actions using a short length of wire to bridge the connections in the connector for the Click Box. There are lots of posts on HEF about how to make and use this tool.

    Submode 25 is used in order to enable or disable the air inlet heater in the power train ECM.

    1. Use the 4C-8195 Control Service Tool to enter Transmission Calibration Mode (8) via the "MODE" switch. Then enter submode 25 by using the "SCROLL" switch.
    2. Use the INCREMENT (+) position of the "CLEAR" switch in order to change the selection. Press and release the switch in order to select AH0 or AH1. AH0 disables the air inlet heater in the power train ECM. AH1 enables the air inlet heater in the power train ECM.
    3. To exit submode 25, scroll to the next submode by using the "SCROLL" switch or exit the Transmission Calibration Mode by using the "MODE" switch.
     
    mante and alaa like this.
  4. alaa

    alaa Well-Known Member

    Joined:
    Jan 31, 2017
    Messages:
    48
    Location:
    kasa
    Thanks Gents I will do that