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Testing Servomotors for the A/C climate Flaps

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  • Testing Servomotors for the A/C climate Flaps

    As Title....Testing Servomotors for the A/C climate Flaps, I have my Climate unit out for a recon.... and Know one of my servomotors is not fuctioning and would like to test the 3 off them but can find no wiring info on them, can anyone assist
    RS 2 580HP

  • #2
    Pin1 - Motor +
    Pin2 - Motor -
    Pin3 - Fixed end potentiometer, 5V+, all connect to pin C8 on control unit.
    Pin4 - Other fixed end potentiometer, ground, all connect on pin A12 on control unit.
    Pin5 - Variable end potentiometer

    Wire colours vary, but the pinout is the same on all 4 motors.

    DM me if you want a diagram.

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    • #3
      I've replaced a few of mine with these:
      https://www.ebay.co.uk/itm/Dc-Motor-...cAAOSwGIRXYTan

      Also found the potentiometer needed a strip down and contacts cleaned to get it all working properly
      Not a straight forward task but easily doable with a bit of patience
      I used this as a guide, not exactly the same, as the pot doesn't come apart as easily but it's a good start
      https://www.audiforum.ca/a4-b5-b6-b7...leaning-72039/

      1989 NG Q Pick-up (Daily)
      2002 ASZ Golf (Doris' Daily)
      1997 AJK-G2 A6 Avant Q (In surgery)
      1999 AGZ Bora (Daily 2)
      1994 ABC A6 Avant (Spare)
      1984 JS Coupe GT (Slow progress)
      1982 WN Coupe GT5 (Spare)
      1983 MK1 Golf GTI Pirelli (In storage)

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      • #4
        Thanks for the feedback....
        RS 2 580HP

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        • #5
          Originally posted by Typ89 View Post
          Pin1 - Motor +
          Pin2 - Motor -
          Pin3 - Fixed end potentiometer, 5V+, all connect to pin C8 on control unit.
          Pin4 - Other fixed end potentiometer, ground, all connect on pin A12 on control unit.
          Pin5 - Variable end potentiometer

          Wire colours vary, but the pinout is the same on all 4 motors.

          DM me if you want a diagram.
          So what would the best way to test and see which one is faulty ? I was thinking to add power to 1 & 2 would that do it ?
          RS 2 580HP

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          • #6
            Yes you can, but i'm not sure what voltage they're normally fed with. You might wanna but a light bulb in between before you set 12V on them.

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            • #7
              They are 7v.... so I will need to find a suitable supply
              RS 2 580HP

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