Need Help Troubleshooting Warning lamps/Indicators W900

Discussion in 'Trucks [ Eighteen Wheelers ]' started by OldRed98, May 3, 2017.

  1. OldRed98

    OldRed98 Medium Load Member

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    Apr 18, 2017
    Colorado
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    Hey Everyone,
    I just bought an old 98 W900 for a good price. I'm in the process of going through the truck and fixing anything I find wrong.

    I cannot figure out why the warning indicators won't come on. (The bar with low pressure, ABS, Check engine, ect). I put the key in the ignition and the bar doesn't light up (no wait to start or anything). I figured it was a fuse but all of my fuses look good. (I stuck the fuse checker on each one). I have a T300 with the same indicator bar so I swapped out the indicator and still no luck. Is this a possible issue with a relay? and if so which one should I check?

    I'm also not getting any dash lights. However my gauges (tach, speedo, oil pressure, coolant temp, Brake pressure, are all working).

    Any help is appreciated.
     
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  3. ShooterK2

    ShooterK2 Road Train Member

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    I was gonna say make sure the bar is plugged in good, but if you swapped it, then that's taken care of. I know there's a row of small switches that control the warning sound, but I think the lights come on anyway. Not 100 percent sure though. Ya might try messing with those switches (they're in the overhead console, right behind that warning light bar) and see if it changes anything.
     
    OldRed98 Thanks this.
  4. OldRed98

    OldRed98 Medium Load Member

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    Apr 18, 2017
    Colorado
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    Thanks ShooterK2... I'll try messing with those switches. I was hoping it was something simple like a fuse but doesn't look like it is.
     
  5. OldRed98

    OldRed98 Medium Load Member

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    Apr 18, 2017
    Colorado
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    ShooterK2.... Apparently I just needed your moral support. I just ran out now that its dark and started trying some of these spare switches and testing all the lights. The guy I bought the truck from has the warning cluster hooked up to a toggle switch... I guess he could turn off his warning lights if something was wrong and DOT stopped him.. HAHA I couldn't figure out what the other reason would be to toggle your warning indicators.

    Got my dash lights going too.

    I'll post some picks soon once I get more work done. Cleaning up and restoring most of the truck. Fixed a few air leaks and need to adjust my clutch but still haven't found anything major. Glad I bought this W900. I'm sure I'll run into other things that I'll need help on.
     
    insertnamehere Thanks this.
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