marioblaze63
4Runner Windshield Washer Heater Fault
Summary of the thread
A 2000 Toyota 4Runner owner experienced issues with the windshield washer heater, leading to error codes and frozen spray nozzles in cold weather. The problem was suspected to be due to a loose or corroded connection in the heater's wiring. It was suggested to check the connections near the washer fluid reservoir or motor. Ultimately, a workshop diagnosed and fixed the defective connection, resolving the issue.
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4 comment(s)
marioblaze63 (community.author)
Thanks! Where exactly is the windshield washer heater located? I'm not really sure where to look for the cable and plug.
tom_fischer8
Okay, on your 4Runner, the windshield washer heater is usually integrated with the washer fluid reservoir or located very close to the washer motor. Trace the wires coming from the washer nozzles back towards the reservoir; you should find the heater and its connections there. But honestly, with those symptoms and error codes, it might be more efficient to have a workshop take a look. They can diagnose it properly and replace any defective parts. It shouldn't be too expensive.
marioblaze63 (community.author)
Thanks for the help! I took it to a shop, and you were right, it was a defective connection. Cost me 95€ to get it sorted.
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TOYOTA
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4RUNNER
tom_fischer8
A faulty windshield washer heater on a 2000 4Runner? That's not something you hear about every day, but it could be a simple fix. Have you checked the cable and plug connection to the heater itself? A loose or corroded connection is a common cause for this type of malfunction.