zf freedom line transmission problem

Discussion in 'Volvo Forum' started by rudolph, Dec 27, 2014.

  1. Pablo-UA

    Pablo-UA Road Train Member

    7,604
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    Oct 11, 2010
    Borispol, Ukraine
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    try to read MID 130 codes... if "operation failed" check 12 to 24 v doubler connectors and fuses in battery box. Seems to me TCU is not powered.
     
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  3. rudolph

    rudolph Bobtail Member

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    Dec 20, 2014
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    I does read transmission codes only issues is active code is from engine crank sensor which I unplugged long time ago. If there is extra fuse or relay for transmission where would it be located? I looked over trough fuses in dash and under those but found nothing related to transmission. Also when I check for hardware trough diagnostics menu it does not show which transmission I have all fields are blank ,engine does show all info.I followed instructions from zf manual and checked for voltage after I installed new voltage doubler and there is 23.8 volts on plug that connects to TCU . Is it possible that transmission is stuck in gear and is not in neutral because I drove it when i lost electrical power?Thanks
     
  4. QUALITYTRUCK

    QUALITYTRUCK Road Train Member

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    1,484
    Jun 14, 2009
    romulus,mi
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    it may be what ZF calls "torque locked"IIRC,with engine running,release brakes and let truck roll (or get it rolling)Transmission does not know it is in neutral.Hope this helps.Good luck.
     
  5. rudolph

    rudolph Bobtail Member

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    Dec 20, 2014
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    But this is ZF transmission. Anyone ever had torque locked this one? If nothing else works I would try that. Thanks
     
  6. mrtrdrvr

    mrtrdrvr Light Load Member

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    Nov 6, 2009
    Indian River ,MI
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    Did you ever get this figured out?
     
  7. rudolph

    rudolph Bobtail Member

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    Dec 20, 2014
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    Yes I did. I had to replace J1939 resistor.
     
    mrtrdrvr Thanks this.
  8. Burdisco

    Burdisco Light Load Member

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    Apr 25, 2015
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    Have Zf parts Manual and Zf Shop Manual for Freedomline. Put foot on break pedal and hold function and neutral button at same time. Codes will show on display. E7 means brake pedal is not adjusted correctly. 39 means shifter. my 2005 had air leaks 22 of them, little tiny ones as they were fixed things got better. Today it was the air pressure regulator. Its neat driving down the rd and having the beeps because the break pedal need adjustment. Group 524 no.1 release 02 dated 8.2013
     
  9. Cricket Man

    Cricket Man Light Load Member

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    Oct 16, 2011
    amherst,oh 44001
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    Who still got a freedomline i just get a columbia 2006 with a 12 speed. Any tips?
     
  10. Canada Brock

    Canada Brock Bobtail Member

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    Oct 18, 2018
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    learn how to start engine under the hood! Some day you will turn the key to start and get dead quiet, and if you look at your shifter it will be dark, no N lit up, as usual on start up. and on the dash the gear indicator will be blank, instead of CH or N. Turn key to on position, open the hood and pop open up the ignition relay by the steering column, and use a little wire to jump across2 of the contacts to start the engine. click the relay plug back together and in a few minutes your tranny will click in to N . This little trick got me going dozens of times. Works when batteries are getting low.
     
  11. Jstdoit

    Jstdoit Bobtail Member

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    Dec 1, 2018
    NC
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    Can anyone tell me what can go wrong with the air pressure regulator on the transmission seems like an expensive piece for no more than what it is
     
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