Intermediate wipers do not work

1999 HONDA ACCORD
167,000 MILES • 2.3L • 4 CYL • 2WD • AUTOMATIC
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PAUL DREHER JR.
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The wipers work on high and low but the intermediate wipers do not work. If you pull the switch back the washer motor does not work either. The motor for the washer is getting no power. Replaced the multiplex control module already fuses are good. Also replaced the wiper relay. Need help please.
May 3, 2018 at 1:06 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,512 POSTS
Hello,

It sounds like you have an intermittent wiper relay that is not working. Here is a guide to help you test the relay once you find it from the diagrams below:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Here is the wiring and relay locations.

Check out the diagrams (below).

Please let us know what you find. We are interested to see what it is.

Cheers, Ken
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May 6, 2018 at 5:39 AM
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PAUL DREHER JR.
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I have tested the relay and it tested good. they are still not working. help please.
Mar 17, 2019 at 11:16 AM
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STRAILER
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Welcome back, it sounds like the driver side multiplex is out. Here is the location and a larger wiring diagram so you can see how the system works. Replace it and please get back to me. Check out the diagrams (below). Please let us know what you find.

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Mar 18, 2019 at 5:25 AM
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PAUL DREHER JR.
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I have replaced that too.
Mar 18, 2019 at 5:27 AM
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STRAILER
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I am sorry, it is the passengers side multiplex that controls the intermittent wipers.
Mar 18, 2019 at 5:36 AM
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PAUL DREHER JR.
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What else does the passenger side multiplex control the washer too?
Mar 18, 2019 at 5:44 AM
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STRAILER
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The two multiplex controllers work together. so yes it can affect the washer motor as well.
Mar 19, 2019 at 3:14 AM
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PAUL DREHER JR.
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  • 10 POSTS
Is there anyway to test the multiplex?
Mar 19, 2019 at 3:27 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,512 POSTS
Yes, you can do a can scan on the system which will pinpoint the issue. Here is a video to show you how:

https://youtu.be/InIlnsjOVFA

Please let us know what happens.
Mar 19, 2019 at 3:51 AM
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