01259 - Fuel Pump Relay (J17) MK5 GT TDI golf

Discussion in 'Mk5 VW Jetta, Sportwagen, and Audi A3 TDI forum' started by ak77, May 10, 2015.

  1. chittychittybangbang

    chittychittybangbang Administrator

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    I believe the intermittent engine speed sensor should still allow it to run, plus, only happened once. Fuel pump relay only happened once. If you mean it stopped while driving, then no fuel pump = no fuel, that would do it. Those codes were a few miles back though. Not sure on this one. Could try clearing all codes, see what comes back.

    Is it turning over at all by itself? Does it sound like it has fuel?

    If you fix it, can you post an update? Thanks in advance.
     
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  2. Keithuk

    Keithuk Super Moderator

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    Both posts merged. ;)
     
  3. ak77

    ak77 Member

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    Hi guys,
    The engine turns and runs by it self for 10 -20 sec , then just starts to turn off and it does. I have cleared all the codes and the same issue arises every time.
    I was driving the car for a 1km then it shut down on me .....
     
  4. ak77

    ak77 Member

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    Keith, what do you think below : I haven't passed the fuel issue ....Control module ?

    Some battery suggestions, what should be the high cranking battery for GTD 125kw golf?
    _____________________
    How good/old is your battery? The 128 rpm while cranking is not good enough to me.

    Yep, 280rpm minimum before the injectors will fire.

    Have the battery tested.

    Also check the wiring for G28 as well. There's a connector down on the inside of the left chassis rail that can often have a broken wire or two at it. Usually for G28, or the coolant temp sensor.
     
  5. ak77

    ak77 Member

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    Below is my Central Electronics Control Module board, what relays should I be looking at for Fuel Pump Relay (J17) faulty.
    Just confirming , in case I pulled the wrong 460 one out ?
     

    Attached Files:

  6. ak77

    ak77 Member

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    Also what regulator controls the interior lighting ?
    Only asking as I'm getting to the point thinking previous owner played around with these as I noticed few scratches and mounting screws missing under steering ....
     
  7. ak77

    ak77 Member

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    After reading multiple TDi treads, I'm wondering if I should be replacing my TDI PD Head Injector Wiring Loom?
    I'm guessing here , but im thinking this somehow might be related ?
     
  8. Vwman2015

    Vwman2015 Member

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    You have a lot of codes, it's not a module or ecu problem?

    Have you placed your finger on each relay under the dash (below steering wheel) to feel a click?
     
  9. Vwman2015

    Vwman2015 Member

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    The fuel pump under the back seat, can you hear it prime?
     
  10. Keithuk

    Keithuk Super Moderator

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    I'm curious why you call it a GTD? They did a 170PS mk5 but that was classed has GT even though it has the same power output as mine. The Mk5 covered 2003-2009, what year is yours?

    https://en.wikipedia.org/wiki/Volkswagen_Golf

    I think the interior lights are controlled by the Body Control Module (BCM). If you want to post your Sales Model I will have a look what ElsaWin shows?

    [​IMG]
     
  11. Keithuk

    Keithuk Super Moderator

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    Mine is the original battery which is 6 years old. Over winter its been a bit slow cranking over so I top it up occasionally as I don't do as many miles as I used to. The spec is 68AH which to me is a bit low, but larger AH batteries tend to be bigger so I don't know if they will fit the battery tray, I will have to check this more thoroughly.
     
  12. Vwman2015

    Vwman2015 Member

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    Relay 404 is fuel pump,

    Place a finger on it feel a click.

    Also the pump under the seat, listen to it prime, no prime then check the ground and postive feed on the connection plug with a voltmeter.

    You can also do a test on the wire looms before replacing it and it's not the problem solver
     
  13. Vwman2015

    Vwman2015 Member

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    The battery has had a good life span too, the electrons are not gonna be doing so good a job.

    Replace it to achieve better test results, any electrical tests needs a fully charged battery to carry a secsessful diagnosis.

    Min bat voltage is 11.5v.
     
  14. ak77

    ak77 Member

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    I'
    All relays click I tested each.
    I'm guessing its a Module/or ECU.
    Just guessing .
     
  15. ak77

    ak77 Member

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    Battery is always 11.5V or greater....
    I did have to charge it few times after cranking few times, but I dont think it would affect engine running after ignition ( runs for 20 sec)
     
  16. ak77

    ak77 Member

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    Hey Keith,
    In Australia GT has Diesel and Petrol is just label3ed at GT.
    But being a BMN engine its quite obvious.

    I just wondering as they had a Recall on Piazio Injectors on 125Kw , would you say injector wiring loom would have anything to do with Voltage issues.
    I did replace Injector before and car ran fine. It did keep throwing G28 error on sensor.
    Still does after replacing it.

    Any thoughts
     
  17. ak77

    ak77 Member

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    I did this test first of all, it primes fine from the back .
     
  18. Keithuk

    Keithuk Super Moderator

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    [​IMG]

    Location: Perth WA

    WA is the abbreviation for Washington, add Australia unless you can fit Western Australia?
     
  19. ak77

    ak77 Member

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    how would I go about testing this :
    Check/Replace Wiring/Connector(s) from/to Fuel Pump Relay (J17).
     
  20. Keithuk

    Keithuk Super Moderator

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    Continuity checks on wiring and connectors, you will need a wiring diagram. Supply voltage checks.
     

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