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Thread: Rear AC on 2005 pilot, new resistor didn't fix it.

  1. #1
    Junior Member HondaSUV Newbie
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    Question Rear AC on 2005 pilot, new resistor didn't fix it.

    Hello all, I joined this forum to search for help on little things I may be able to fix myself instead of taking it to the dealer. I have a 2005 pilot exl and the rear ac hasn't worked for over a year now. I searched in the forums and saw about the new resistor being the possible issue. I cleaned the screen and went out and bought a new resistor but it wasn't the problem. The new one didn't work and I wanted to know if there was anything else I could look into that could be causing it not to work. I hand turn the hamster wheel and it starts turning and the ac starts working. Any ideas on what it could be? Thanks for any and all input.

  2. #2

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    Could be a bad motor.

    Did you try to fix the transistor module,m or replace the whole transistor module?

    Did you run the diagnostics from the AC control panel?
    02 CRV
    03 Pilot
    07 MB E350
    73 914

  3. #3
    Senior Member HondaSUV Elder 'Curly Q Links''s Avatar
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    There's many threads about the 'transistor'. Those threads should contain more help. Being from Houston, you may have a worn out fan motor, as suggested. You can unplug the fan and wire it straight to 12 volts to check it. Tap it with a small hammer while it's running to see if it stutters. The cover may come off to reveal the worn brushes.

    Hondas with resistors for the fan speed are really old school.

    .
    '97 CR-V. . . . . . '00 CR-V SE (leather) . . . '98 Odyssey V-Tec ! !
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  4. #4
    Senior Member HondaSUV Mentor chiph's Avatar
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    Some years of the Pilot just used a resistor, others used a combination resistor + transistor in the same replaceable module.

    Chip H.

    Former owner of: 2012 Civic LX, 2006 Ridgeline RTL, 2000 Honda CRV EX

  5. #5
    Senior Member HondaSUV Elder 'Curly Q Links''s Avatar
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    Quote Originally Posted by chiph View Post
    Some years of the Pilot just used a resistor, others used a combination resistor + transistor in the same replaceable module. Chip H.
    I stand corrected . . . . .
    .
    '97 CR-V. . . . . . '00 CR-V SE (leather) . . . '98 Odyssey V-Tec ! !
    --------------------
    First, read the Owner's Manual, then SEARCH, your Internet is STILL WAY faster than mine.
    --------------------

  6. #6

    Default

    Quote Originally Posted by chiph View Post
    Some years of the Pilot just used a resistor, others used a combination resistor + transistor in the same replaceable module.

    Chip H.
    Nope.

    I have a first year, second month Pilot and original Electrical Manual.

    They use a transistor module.
    02 CRV
    03 Pilot
    07 MB E350
    73 914

  7. #7
    Senior Member HondaSUV Mentor chiph's Avatar
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    Thought I saw wiring diagrams the other night that had it both ways.

    /shrug. Not the first time I've been wrong.

    Chip H.

    Former owner of: 2012 Civic LX, 2006 Ridgeline RTL, 2000 Honda CRV EX

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