99 western star. Some gauges not working.

Discussion in 'Western Star Forum' started by K_wood250, Apr 24, 2018.

  1. K_wood250

    K_wood250 Bobtail Member

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    Apr 24, 2018
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    N14. 4964fx model. Customer changed his batteries and hook up cables wrong.... now the oil pressure, oil temp, tach and Speedo don't work. Other mechanical gauges do work (air pressure, application, alt)

    Checked main 100 fuses on firewall, check all other fuses in fuse box.

    Any other spots to troubleshoot? I'm at a stand still now..
     
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  3. Cetane+

    Cetane+ Road Train Member

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    Sep 29, 2013
    Albany, NY
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    They all come from the ECC. So it is not getting data from the two data link wires or it is not putting it out. Or worse yet, it got burned out. It’s the silver box in the dash behind the speedo. Do you have data at the data port inside the cab?
     
    K_wood250 Thanks this.
  4. K_wood250

    K_wood250 Bobtail Member

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    Apr 24, 2018
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    Sorry for late response. Checked data port. No power. Ended up calling in someone with a proper computer. Ended up changing the ECC. Everything is working fine now. Thanks for the advice.
     
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