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    Thread: Load reduction relay - no wipers/blower fan/rear defrost

    1. Member d.clique's Avatar
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      01-20-2010 02:43 PM #1
      Yes I have used the search function, yes I have read all of those threads.

      It's pouring in LA and my bunny lost its wipers/rear defrost/heater blower fan. I have read enough to understand it's probably the load reduction relay. Pulled the one in my car, it looks really new. Is there anyway to troubleshoot this aside from buying a new one? Do they go bad? Burn out?

      Can any SO-CAL heads recommend a walk in VW parts house in central LA? (I am in Echo Park)


    2. Member
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      01-20-2010 02:54 PM #2
      pull the horn relay and put it in the load reduction relay socket and see if it works. (they are essentially the same type of relay)

      If it does then your load reduction relay is shot and you need a new one. A standard 30/40 amp (40 is better) 4 pin relay will work fine.


    3. Member d.clique's Avatar
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      01-20-2010 02:57 PM #3
      doesnt look like I have a horn relay....

      standard like i can buy this from autozone?


    4. Member
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      01-20-2010 03:03 PM #4
      Yes, they should have them at autozone. They are used for foglights, horns, etc.

      That relay pinout is used for lots of things on lots of cars both OEM and aftermarket.

      Yeah some of the early cars have horn relays some dont. Sorry about that.

      Its usually the easiest way to check


    5. Member CodeMan's Avatar
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      01-20-2010 03:10 PM #5
      Every time those things have quit on me, it has actually been the ignition switch that is failing.
      The blues ain't nothin' but a good man feelin' bad.

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    6. Member
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      01-20-2010 03:12 PM #6
      Quote, originally posted by CodeMan »
      Every time those things have quit on me, it has actually been the ignition switch that is failing.

      Yeah I was just going to mention that as well..... The relays dont usually go bad very often


    7. 01-20-2010 03:38 PM #7
      jump the 87/30 terms

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      01-20-2010 03:44 PM #8
      ^ that's what i would do.. jump the pins

    9. Member SGLoki's Avatar
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      01-20-2010 05:23 PM #9
      The horn relay is right next to it, same pin pattern, swap it in...

      If that fails or you don't have one pull the cover off the relay, and try to bend the connector closer to reduce the gap, worked fine for me twice so far.

      1% defined: Lone wolf, no club. Duct tape it yourself. It is broken down 1% of the time, and work is always 1% completed.
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    10. 01-20-2010 05:27 PM #10
      check the ground on the strut tower as well
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