ddec iv ecm not working

Discussion in 'Trucks [ Eighteen Wheelers ]' started by truckerbangin, Aug 29, 2014.

  1. truckerbangin

    truckerbangin Light Load Member

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    Jan 22, 2013
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    running a detroit diesel series 60 ddec iv and its the second time a ecu has died on me. same scenario on two different occasions trucks came to yard running fine next morning trucks roll over but wont start. has any one had issues with ecm's going dead over night?
     
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  3. Heavyd

    Heavyd Road Train Member

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    Struck by lightning during the night.
     
  4. sailboatjim

    sailboatjim Light Load Member

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    Someone exchanged it during the night.
     
  5. xsetra

    xsetra Road Train Member

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    I have a Cummin's, but mine went bad while I was starting truck. Motor started but cel and sel came on so I shut motor off. Read codes. Tried to start and motor would crank but not start. I was jump starting. I was told the ECM had a power surge while starting.
    Is your ECM bad or did you just lose power to it.
     
  6. baha

    baha Road Train Member

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    ECM. has a small batt. built into it, if it goes bad truck will not run, 1st be sure truck is powering the ecm with key on?
     
  7. truckerbangin

    truckerbangin Light Load Member

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    thats the first thing i did when i took ecm off
     
  8. dustinbrock

    dustinbrock Road Train Member

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    Same happened to me. There is a fuse right at your batteries that runs to ecm. Check the fuse and make sure it's clean..... there's a few of em so check em all.
     
  9. Exiled

    Exiled Light Load Member

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    Apr 20, 2013
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    Orange & green wires are the ground, on the right ecm connector might went bad
     
  10. Pablo-UA

    Pablo-UA Road Train Member

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    what kind of internal damege? Remove back cover and inspect
     
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