Thread: 2000 FG637 Fuel Cutoff Wiring

  1. #1
    Join Date
    Jul 2011
    Location
    Gold Coast, Queensland, Australia
    Posts
    22

    Default 2000 FG637 Fuel Cutoff Wiring

    Hi people,

    I have an issue with my FG637 fuel cutoff not working. I've had it in for a recent service where they checked it out and tested the motor on another canter and its working fine so appears something else in the wiring is preventing it working. Apparently when asked Mitsubishi reported there are no wiring diagrams for models pre 2003 (might have been 2004) to work off so I'm a bit stuck.

    Does anyone know if there is a relay hiding somewhere for this that might be cactus, or know where the wiring for this thing ends up ?

    In the worst case I can probably kludge up a mounted switch for it but would much rather see if it can be fixed properly first.

    Thanks in advance,

    -Andy

  2. #2
    Quote Originally Posted by offroadpup View Post
    Hi people,

    I have an issue with my FG637 fuel cutoff not working. I've had it in for a recent service where they checked it out and tested the motor on another canter and its working fine so appears something else in the wiring is preventing it working. Apparently when asked Mitsubishi reported there are no wiring diagrams for models pre 2003 (might have been 2004) to work off so I'm a bit stuck.

    Does anyone know if there is a relay hiding somewhere for this that might be cactus, or know where the wiring for this thing ends up ?

    In the worst case I can probably kludge up a mounted switch for it but would much rather see if it can be fixed properly first.

    Thanks in advance,

    -Andy
    Hi Andy.....I'll send you a PM about this. John

  3. #3
    Join Date
    Jul 2011
    Location
    Gold Coast, Queensland, Australia
    Posts
    22
    Just to finish this thread with a solution for anyone searching in the future, but first thanks to John for your kind help on it.

    There is a relay controlling the fuel cutoff motor, on RHD FG637 it is under the plastic dash panel that surrounds the fusebox, it is a yellow relay just below and at the right hand end of the fusebox. In my case 2 of the wires of the relays connector were corroded through causing an open circuit. There is also a fuse for the relay and a separate fuse for the cutoff motor, both are listed on the fusebox cover and if either are blown it wont work.

    Hope this helps someone one day.

    -Andy

  4. #4
    Join Date
    Apr 2007
    Location
    Very Northern California/Baja Oregon
    Posts
    848
    Quote Originally Posted by offroadpup View Post
    Hi people,
    Apparently when asked Mitsubishi reported there are no wiring diagrams for models pre 2003 (might have been 2004) to work off so I'm a bit stuck.
    -Andy
    Sorry I did not see this sooner.
    For the future:
    Wiring diagrams, troubleshooting, pin chart, and locations for 1996-2001 Fuso fuel cutoff
    http://996.i8.com/fuso-fuel-cutoff-w...leshooting.pdf

    BTW-wiring diagrams 'exist' in the repair manual.
    Mark
    Last edited by mog; 06-07-2012 at 05:21 PM. Reason: hyperlink 'fix'

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