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Wiring diagrams

CD360

New member
Anyone have or know of a place to get some wiring diagrams for a 1999 Mercury 175 EFI? I want to look over the wiring harness on the engine. The previous owner re-powered with this engine, and there are some wires that are just hangin out. Any help would be great. Thanks!
 
there are some wires that are just hangin out. Any help would be great. Thanks! Take some pictures of the wires hanging out and post them.
 
That manual it great, but I think it is for a newer engine than mine. I'll see of some of the wiring harness are the same though. Thanks again for sending it


The manual is for years 1990 thru 2002. I'll double check that this afternoon.
 
CLYMER MANUAL

A CLYMER MANUAL HAS COLOR WIRE DIAGRAMS.THEY RANGE FROM 35$ TO $45. SOME COVER A CERTIAN ENGINE AND SOME COVER SEVERAL.I USE THEM ALMOST EVERDAY @ MY SHOP.IF I HAD ONE FOR YOUR MOTOR I WOULD SEND YOU WHAT YOU NEED. IF YOU CANT FIND ONE I CAN SHIP YOU ONE.IM GOING TO LOOK CAUSE I HAVE A MANUAL FOR THE MERCURY JET BOAT ENGINE,AND SOMETIMES THE POWERHEAD IS THE SAME.

LATER
LUKE @ C.R.C
1-877-478-0540
 
A CLYMER MANUAL HAS COLOR WIRE DIAGRAMS.THEY RANGE FROM 35$ TO $45. SOME COVER A CERTIAN ENGINE AND SOME COVER SEVERAL.I USE THEM ALMOST EVERDAY @ MY SHOP.IF I HAD ONE FOR YOUR MOTOR I WOULD SEND YOU WHAT YOU NEED. IF YOU CANT FIND ONE I CAN SHIP YOU ONE.IM GOING TO LOOK CAUSE I HAVE A MANUAL FOR THE MERCURY JET BOAT ENGINE,AND SOMETIMES THE POWERHEAD IS THE SAME.

LATER
LUKE @ C.R.C
1-877-478-0540


Sounds good. I'll look into that manual. I didn't find any online the other day. I didn't look to long so maybe some more research will find one.

I'll post some pics later on today of the wires
 
Here are the pics of the wires.

The first wire comes from this box. It is a tan wire

E587-46E4-9FAD-329A91F49506-22836-00002A925A065263.jpg
F4AC-4B29-9A2B-0596F408AB0B-22836-00002A924799E881.jpg


The next one is a brown wire coming out of the engine harness plug

8C40-4F23-B546-6FB93C2ABE17-22836-00002A924CF1BAD0.jpg


Here is a yellow with black tracer wire that is cut on the engine harness

A3C1-4C82-976A-6BBAAABC592F-22836-00002A9250F69A66.jpg


This tan with blue tracer isn't connected to anything and it looks like it runs to this box on top of the engine

B829-48D0-A905-03DD802D48E1-22836-00002A92559801E6.jpg
C1BA-426F-9FDC-516DCAB14A99-22836-00002A9243B7E5B6.jpg
 
Are these sensors for temperature alarms? Can you ground these wires out to test the alarm?

68BF-4BA0-AD44-285C83209DB4-22836-00002A9238BF7B78.jpg
EFA8-466B-9B25-8273E9CD7299-22836-00002A92345D0A6A.jpg


This tan wire under the dash Isnt connected to anything

86FE-42F7-BA07-F1749E6E2460-22836-00002A923D775F54.jpg
 
Got it all figured out. Big thanks to Robbie (cmpulse170) for sending me the wiring schematics and manual. I just bought a tach and temp gauge, so the manual came in handy for wiring those up to.
 
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