Gen 2 does not start after a breathalyzer was removed? No LED lit on Power Button.

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by James Analytic, Jun 7, 2025 at 9:15 AM.

  1. James Analytic

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    Like the other half or side does, says she or we are going to do and only I wind up literally doing. Kind of like the rant pre syn I'm getting now.
     
  2. James Analytic

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    Appears I found all the wire and am still wondering what the resistance and capacitance effects are on the digital signals if that's what those are for. Didn't ID the connectors and pins along with wire colors just yet. Only conductivity to see if open circuit or not. No voltage testing as well unfortunately.

    I did come to the conclusion, since troubleshooting would be check not the wiring harness first, the fuse box and all the fuses need replacing. AM2 was not conductive nor were any of the fuses for that matter. AM2 also pulled out as a crumbled mess where I am guessing formic acid from the ants is to play? Whether that was a situation from the ants or issues prior or from the ants after sitting a year.

    48018291-4b3e-41c7-808d-c895fc9cc8a4.jpeg 81a80859-9b1c-4756-9cf9-fd75a853695c.jpeg 984ea976-29e8-432b-9865-c14cacd6a1c5.jpeg 812bfc5b-b25f-4cdb-b740-448c814d5270.jpeg

    Amazingly, performing the conductivity testing only as time was limited, everything appears to be conductive connections albeit solder blobs that are not that pretty.
     
  3. Tombukt2

    Tombukt2 Senior Member

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    So I'm to believe those red wires were separated and device inserted in between so to speak.if that's so. Then up by pwr distro box should be another probably white wire it's Fat in same condition as red here?
     
  4. Tombukt2

    Tombukt2 Senior Member

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    Boy that's ugly fuse box .
     
  5. James Analytic

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    Appears they spliced into the fat blue wires (11 1H and 1 1C) for switching PWR power and I guess HTR for power? At least I'm thinking if I'm reading correctly. (4 1J) was spliced as well, which appears to be the IGN ignition. Brake pedal was the blue wire and I still need to read what the green wire is going into, a tan-yellow thing. The green had the blue wires added and the blue had the red wires added.

    Appears the additional lengths of Blue wires and Red wires were for dropping down those circuits wires for easier access maybe later to more quickly remove or to run to the IID thingy. Those get me wondering if somehow they are adding additional resistance and or capacitance to cause digital signals to be wonky. Just random guessing, though seems like if worked with then probably logically not. Wondered if any of the mess of em jostled around before insulating if grounding could have blow a fuse or damaged something?

    Yes sir, amen to that. I should of taken a photo of the pulled fuse that crumbled into powder and the plastic piece more opaque than clear blue with no continuity even when pulled. Even in the yards and all the Priuses and vehicles I've pulled fuses out of, never witnessed anything like. Fumeric Acid from the ants is my best guess.