relay 109

Discussion in 'New TDI forum member introductions' started by mkIV, Mar 12, 2017.

  1. mkIV

    mkIV New Member

    Joined:
    Mar 12, 2017
    Messages:
    2
    Car:
    2003 vw golf 1.9 tdi mk4
    Location:
    Ontario, Canada
    relay 109 was unplugged while car running ...help no cranking! what happened
     
    login to remove this ad
  2. Keithuk

    Keithuk Super Moderator

    Joined:
    Aug 29, 2010
    Messages:
    6,856
    Car:
    2010 Golf GTD (170) CBBB
    Location:
    Stoke on Trent, England
    Relay 109 doesn't effect cranking its the main power feed to the ecu. You need to check the system out.
     
  3. mkIV

    mkIV New Member

    Joined:
    Mar 12, 2017
    Messages:
    2
    Car:
    2003 vw golf 1.9 tdi mk4
    Location:
    Ontario, Canada
    Thank you very much. we are trying to figure out how to reset the ecu.
     
  4. Seatman

    Seatman Well-Known Member

    Joined:
    Jul 9, 2010
    Messages:
    5,765
    Car:
    2000 Mk4 Golf Estate 1.9tdi 174 bhp
    Location:
    Scotland
    Mods:
    PP764's, turbo and mapping
    No cranking as in not turning over? That's nothing to do with the ecu, means power isn't getting to the solenoid on the starter.

    Could be a fuse maybe
     
  5. Keithuk

    Keithuk Super Moderator

    Joined:
    Aug 29, 2010
    Messages:
    6,856
    Car:
    2010 Golf GTD (170) CBBB
    Location:
    Stoke on Trent, England
    Do you have a fuse & relay diagram? I have 2003 Golf-Bora 1.9 SDI Fuse & Relays if you want it?

    Fuse & Relay PDF Files

    No.9 relay in relay carrier under the dash (175) - Relay for Starter Inhibitor and Reversing Light (J226)
     

Share This Page