Zenki two door Trueno from Japan
03-21-2024, 02:49 PM
Post: #221
Zenki two door Trueno from Japan
(03-05-2024 09:47 PM)banpei Wrote:  I think it could be the cleaning of the contacts that fixed the issue. The reason you need the grease is to keep moisture out of the switch, but still have grease that allows current to pass. Maybe the old grease will degrade over time and contain small particles of the contacts and then cause the issue.

The issue is also due to a design "flaw" they made on the switch. The contacts used for OFF and INTERVAL are the same. However, two contacts will be bridged when you switch it from OFF to INTERVAL. This will then engage the interval timer, enabling current every X-amount of seconds. This means when you have a small bit of current passing through these two contacts, it may think the switch has been put in the INTERVAL position. Hence the interval wipers engage even though the switch is in the OFF position.

The guide describes it the other way around: if the contacts are too dirty, no bridging will happen and then the interval wipers won't work. According to the guide, only interval wiper switches are faulty.



oh interesting... my interval doesn't work so i guess i will be ordering special toyota cum soon too
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03-21-2024, 10:53 PM
Post: #222
Zenki two door Trueno from Japan
(03-21-2024 02:49 PM)livelaughlevin Wrote:  oh interesting... my interval doesn't work so i guess i will be ordering special toyota cum soon too
Got plenty left, so I can share my Toyota cum with you. Big Grin Blush Confused
More seriously: I only used something like 20% of the grease. It's not that expensive, but it takes a very long time to arrive.

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03-22-2024, 01:19 PM
Post: #223
Zenki two door Trueno from Japan
(03-21-2024 10:53 PM)banpei Wrote:  
(03-21-2024 02:49 PM)livelaughlevin Wrote:  oh interesting... my interval doesn't work so i guess i will be ordering special toyota cum soon too
Got plenty left, so I can share my Toyota cum with you. Big Grin Blush Confused
More seriously: I only used something like 20% of the grease. It's not that expensive, but it takes a very long time to arrive.

I would love to come by, have a cup of coffee and take it off your hands for whatever you paid for it.
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