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How the heck do you "wire" this? Coolant sensor!

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Old 12-28-10, 04:01 PM
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Default How the heck do you "wire" this? Coolant sensor!
Ordered part # 83420-30020 from Lexus. It's the sending unit/sensor for the gauge cluster in order to read water temp on the cluster.

FINALLY came in....wtf! Looks either missing a part or broken?!?

I ask the Lexus parts guys and they are obviously useless. I took pictures and left it there for now.

How does this get hooked up? Anyone can take a pic of theirs? Its located near the knock sensor.

the top has a small hole that is enclosed and its tapered. NO threads on top.






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Old 12-28-10, 04:03 PM
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# 83420


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Old 12-28-10, 04:35 PM
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Is that the ECT Switch?
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Old 12-28-10, 04:45 PM
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Originally Posted by PHML
Is that the ECT Switch?

Genuine Lexus GAGE ASSY, WATER TEMPERATURE SENDER
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Old 12-28-10, 04:49 PM
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lol i think it's wrong part... there is suppose to be a "female connector" type so you can plug it in.
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Old 12-28-10, 04:49 PM
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What I am trying to do:

Get the proper sensor(s) in order to install them on my LS2 in order to make the cluster read properly.
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Old 12-28-10, 04:51 PM
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Originally Posted by GS4_Fiend
lol i think it's broken... it is suppose to be a "female connector" type so you can plug it in.
Haha. seriously does!

I know the fan switch has a 2 pin plug. I don't need that.

If you look at the diagram above...it looks just like the picture I took.
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Old 12-28-10, 05:10 PM
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Why don't you give them a call instead?
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Old 12-28-10, 05:14 PM
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sure looks like ECT (engine coolant temp) switch
Attached Thumbnails How the heck do you "wire" this? Coolant sensor!-ect.gif  
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Old 12-28-10, 05:16 PM
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Originally Posted by GS4_Fiend
Why don't you give them a call instead?
Give who a call? I ordered it from my local dealership. I just went there to pick it up and didn't look right. So I took pictures of the part while at the dealership. The techs AND sales guy were clueless to whether it's correct, broken or how the piece works/installs. I know more than them.

I didn't order from sewell. I only used that pic for reference. However I did PM Darol from sewell and he had none and had never seen one before. That's why I ordered local.

Hope this makes sense
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Old 12-28-10, 05:19 PM
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Originally Posted by PHML
sure looks like ECT (engine coolant temp) switch
That is the ECT FAN switch. It installs in the radiator and tells the fans to turn on/off. Part # 89428 in the sewell diagram I posted above.
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Old 12-28-10, 05:23 PM
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I'm sure something is not right with that part. I'd make another order if i were you and return that. And make sure it has a female connector type at the end.
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Old 12-28-10, 05:28 PM
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Originally Posted by GS4_Fiend
I'm sure something is not right with that part. I'd make another order if i were you and return that. And make sure it has a female connector type at the end.
I didn't buy it. Left it at the dealer.
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Old 12-28-10, 06:24 PM
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where is your old senor
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Old 12-28-10, 06:34 PM
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Originally Posted by AshburnM3
where is your old senor
Sold my engine/harness awhile ago. That's why I an hoping someone can look on their car and see what it looks like an what the plug looks like. 98-05 GS300 and 99-05 IS300 use the same part number.
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