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Old 08-19-09, 10:57 AM   #1
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fuse diagram

Looking in the FAC, there is a placeholder for the fuse block diagram on the S4 coupe, but the graphic is missing. Since there is a separate one for the convertable, I expect there's a difference. Does anyone have the diagram for the coupe?

thanks!

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Old 08-19-09, 02:59 PM   #2
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Quote:
Originally Posted by kel View Post
Looking in the FAC, there is a placeholder for the fuse block diagram on the S4 coupe, but the graphic is missing. [...]

I meant to say "Looking in the FAQ..."

Anyone have info on what fuses are what on the S4 Coupe?

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Old 08-19-09, 03:19 PM   #3
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I just happened to have mine laying around, so I tossed it into the scanner .

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Old 08-20-09, 08:40 AM   #4
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Old 08-20-09, 09:19 PM   #5
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Thanks a million, guys. That's exactly what I needed

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Old 08-20-09, 10:59 PM   #6
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Where is the horn fuse?
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Old 08-21-09, 10:37 AM   #7
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Quote:
Originally Posted by batmanfc View Post
Where is the horn fuse?
I don't see a fuse directly related to the horn. However, there is a relay in the CPU - right next to the fuse block on the driver side - that drives them. Check these diagrams for detail that should help troubleshoot the problem


http://www.teamfc3s.org/main/factory...NG_DIAGRAM.pdf

Diagram 50-58 and 50-94


and:

http://www.teamfc3s.org/main/factory...CAL_SYSTEM.pdf

Diagram 15-23
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Old 08-21-09, 11:55 AM   #8
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I'd suggest downloading the wiring diagrams to your DOCUMENTS. Then go to the page that deals with the HORN. Then look at the source of power on that diagram. IN this case it's on the BATTERY BUSS (B) and then look for the numbers 9 followed by the number 4. After determining that go to the POWER SYSTEM page, at the beginning of the wiring diagrams and follow the B line to the number 9 and then from the number 9 to the number 4. At that point you find a 20a fuse on the battery bus.

So then go look at the upper right hand corner of that POWER SYSTEM page, and you can see where the 20a fuse on the battery bus is located.

Looking at that fuse box in the upper right corner of the POWER SYSTEM page, you see rows of fuses with the letter (B) under a row of fuses indicating that row of fuses in on the battery buss. On other rows you see (IG1) and (IG2). Those rows of fuses only have power when the key is put to ON. The (ACC) row of fuses is just what you think, fuses on the accessory buss and powered when the key is to ON or ACC positons.

IG1, IG2 and ACC never have power with the key to off or out of the switch. IG2 has power with key to ON but no power if the key is put and held to START.
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Old 08-21-09, 11:55 AM
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1986, 86, 88, block, box, diagram, fc, fc3s, fd, fuse, fuses, horn, interior, panel, rx7, s4

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