Won't start - No error codes

Discussion in 'Gen 2 Prius Accessories & Modifications' started by Doc Willie, Dec 8, 2014.

  1. Doc Willie

    Doc Willie Shuttlecraft Commander

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    I took the Zheng Heng to northwestern Massachusetts, three hours away to have a 2 KW inverter installed - so I could use the Prius as a house generator in case of a power failure. Helped the guy do the install, only when we were done, that car would not start. The 12V battery is old and weak, but even with a charger on it, and both the 12V and high voltage systems reading the correct voltages it would not start. Hooked into the OBD, and it kicked out NO error codes. Spent 3 hours trouble shooting, undoing our install, re-booting, calling Prius experts on the phone, and still could not get it started.

    Any ideas?
     
  2. valde3

    valde3 Senior Member

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    What did you use to read fault codes? You need techstream to get all fault codes out. Can you get to ig-on (power button twice without brake)? What happens when you try to start it (go to ready)? Did you just try disconnecting 12V battery for 10min?

    Is it 12V or HV powered inverter?
     
  3. GregP507

    GregP507 Senior Member

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    This is why I think its a bad idea.
     
  4. Eclipse1701d

    Eclipse1701d Prius Enthusiast

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    Try reseating the orange interlock on the HV battery. Use more force and make sure it is clicked in all the way...
     
  5. Doc Willie

    Doc Willie Shuttlecraft Commander

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    It was a HV inverter. We uninstalled it to no effect. Also did the complete 12 V battery disconnect, and reseating the interlock. Car has been towed to a place with the latest Techstream, but have not heard from them for several days.
     
  6. bisco

    bisco cookie crumbler

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    maybe didn't fold lock and slide the interlock switch properly, it's counterintuitive. or maybe a bad 12v with a short.
     
  7. Doc Willie

    Doc Willie Shuttlecraft Commander

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    Follow-up: The problem had nothing to do with either the inverter install or the 12 V battery (which I replaced anyhow; it was weak, and it was time). turns our that one of the three HV relays coming out of the HV battery had corroded contacts, and had to be replaced, and an associated resistor (fuse) was burnt out. Items replaced, inverter installed. and new 12V Optima in place. All is well.
     
    ftl likes this.
  8. 69shovlhed

    69shovlhed Surly tree hugger

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    congrats on getting warp drive back online. I wish the dragon lady would let me paint our '05 like that...
     
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