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Traction battery air temp sensor?

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by tpirsig, Jan 31, 2020.

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  1. tpirsig

    tpirsig Junior Member

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    Aloha,

    I managed to break off a wire on my HV battery air temp sensor when installing new modules. This is the temp sensor inside the case that sits above the batteries, not one of the three clipped directly to the batteries, and now I have a code P0AAC plus red triangle.

    I've been unable to find a replacement locally or online. Anybody have any sources, or workarounds?

    Parts yards are scarce here on the Big Island and nobody wants to break open a HV battery case just to pull this.

    Sorry if this post is redundant; I searched the forum and didn't find anything specific.

    Thanks,

    Ted

    2004 Prius, 230,000 miles
     
    #1 tpirsig, Jan 31, 2020
  2. Priuslover09

    Priuslover09 Member

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    1. i think it could be the cooling fan as well.
     
    #2 Priuslover09, Jan 31, 2020
  3. MickyMatter

    MickyMatter Active Member

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    Hi Ted,

    I don't know, but are you looking for these wires with "N03" in the lower middle of this picture?
    Then Toyota doesn't seem to sell them separately. 823691G.jpg

    SM-G950F ?
     
    #3 MickyMatter, Jan 31, 2020
  4. tpirsig

    tpirsig Junior Member

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    Thanks, but it's definitely the sensor -- the wire broke off, and a new code appeared that wasn't there before.
     
    #4 tpirsig, Feb 1, 2020
  5. tpirsig

    tpirsig Junior Member

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    Yes, that's what I'm looking for, although a used sensor (only) could be spliced into my existing wires. Good to confirm that Toyota doesn't sell separately, thanks!
     
    #5 tpirsig, Feb 1, 2020
    MickyMatter likes this.
  6. ChapmanF

    ChapmanF Senior Member

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    I wonder why you can get so many of the rest of those parts, and we chat about disassembling/reassembling batteries all the time, and for that one particular bit, they say "it is difficult to keep the function/quality of parts assembled/disassembled". :confused:
     
    #6 ChapmanF, Feb 1, 2020
  7. tpirsig

    tpirsig Junior Member

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    Update: I was able to get ahold of this part by contacting a couple ebay sellers of Prius battery ECUs and asking if they could pull one for me.
     
    #7 tpirsig, Feb 6, 2020
    Raytheeagle and fotomoto like this.
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