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diff lock indicator

Discussion in 'International Forum' started by muff, Jul 2, 2014.

  1. Jul 2, 2014 #1
    muff

    muff Light Load Member

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    Dec 20, 2010
    ontario,Can
    0
    2005 9400i how do go about fixing the diff light indcator on the barnyard cadilac . changed the bulb but still no go . any ideas ?
    Thanks Muff
     
    muff, Jul 2, 2014
    muff, Jul 2, 2014
    #1
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  3. Jul 2, 2014 #2
    bad-luck

    bad-luck Road Train Member

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    If you replaced the light and it is still out. Check the wires and sending unit on the transfer case on the front rear
     
    bad-luck, Jul 2, 2014
    bad-luck, Jul 2, 2014
    #2
  4. Jul 2, 2014 #3
    muff

    muff Light Load Member

    73
    38
    Dec 20, 2010
    ontario,Can
    0
    only sending unit on diff I seen was for temp. how do I know ? simple it didn`t work either so I found a new harness and installed it now the temp works . Don`t tell the mechanic ...lol
     
    muff, Jul 2, 2014
    muff, Jul 2, 2014
    #3
  5. Jul 2, 2014 #4
    Heavyd

    Heavyd Road Train Member

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    That circuit is protected by a fuse or breaker in the fuse panel in front of the passenger seat. Located in F4-A, should be 10 amp. Make sure it isn't popped or blown. Then like bad-luck said, there is a mechanical switch on the diff itself with a two wire connector. With the key on you should have power at one of the pins.
     
    Heavyd, Jul 2, 2014
    Heavyd, Jul 2, 2014
    #4
  7. Jul 2, 2014 #5
    muff

    muff Light Load Member

    73
    38
    Dec 20, 2010
    ontario,Can
    0
    ok Thanks Heavyd. I will check the breaker tomorrow. like I said earlier I changed a wiring harness go to front diff and the diff temp gauge started to work . Any chance it would operate both circuits ?
    on a different topic is there an easy way to change the cab/sleeper shocks . the only good one let go today . old trucks ....lots of work .
     
    muff, Jul 2, 2014
    muff, Jul 2, 2014
    #5
  8. Jul 3, 2014 #6
    Heavyd

    Heavyd Road Train Member

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    Feb 4, 2009
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    I see the diff temp and the diff warning are powered by the same breaker/fuse, but splits off to individual circuits in the dash. Different grounds too.
     
    Heavyd, Jul 3, 2014
    Heavyd, Jul 3, 2014
    #6
    muff Thanks this.
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