How I test a DA Integra ICU on the bench

ASSISTANCE Stock Engine-Bay Components
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Here is a link to a video that shows my first attempt at a test rig for ICUs. I made it with a fuse box, a chime, a flasher relay, and a custom PCB. It is much easier than installing it in a car just to test it.

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  • Key position 1
  • Start
  • Brake test light
  • Voltage regulator
  • Oil pressure switch
  • Defroster
  • Intermittent Wipers
  • Headlights
  • Turn signals
  • Oil pressure
  • Door open chime
  • Key in reminder chime

Dude this is so bad ass!

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Still don’t have a confirmed 100% functional ICU to test with so I have not been able to validate the defog, Intermittent, or Key reminder test circuits. The other possibility is that I am testing with a 100% functional ICU and my test rig is not configured correctly. I’ve never heard of the key reminder failing, have you?

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I’m not familiar with testing electronics like this. My key on reminder routinely does not work. Do you have the electronics manual? It should get you the circuits to be sure.

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I did get the key reminder beeper to work, but I found a small flaw in my design that explains why the Intermittent wiper and Defog tests were not working. I jury rigged it and got the intermittent wiper test to work but it looks stupid with jumper wires running all over the place, so I ordered an updated circuit board. Nothing ever seems to work exactly the way I hope it will the first time. I’ll have an update on this project in about a month. Now that I know the concept is good I’ll make it a bit more professional looking next time.

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Do you work with electronics for your career?

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That’s funny, I don’t think I ever had a “career” I just had a bunch of different jobs. I did work in a television repair shop for a year or so.

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Very interesting, From an electrical and engineering standpoint. I love it. once you work the kinks out on this one. A MFR test rig would be a great addition.

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Nfulfx. Time to print up a proper housing for it. :+1:

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Dude. If you can sketch up something on paper, I’ll make it a reality.

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Thanks, but I think that would be a waste of effort, its just a test rig it doesn’t need to be pretty.

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True, but ICU diagnosis is extremely valuable.