ecu haness: wires colors
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Junior Member
Joined: Jun 2010
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From: Quebec
ecu haness: wires colors
(JDM R1 FD)
When i hooked up my power fc i had a chance to take a look at a jumper wire that came out of my ecu harness. Turned out to be the fuel temp sensor. I had a bad sensor check with pfc that have been resolved by disconnecting the wire.
So after taking a closer look to the harness, I found two wires cut real short and tied together with some tape.
One is yellow/red and the other is white/green. When I checked the pinout in my "bible" the white/green wire doesn't exist and the yellow/red one is supposed to be like green/yellow...
To be mentioned that my service manual is the 1993 N-American edition
Is it possible that some wires are not exactly the same colors as the jdm FD's?
'Cause I also have 2 or 3 pink wires and in the manual, no pink wires at all?!?
Can some one help me on this?
When i hooked up my power fc i had a chance to take a look at a jumper wire that came out of my ecu harness. Turned out to be the fuel temp sensor. I had a bad sensor check with pfc that have been resolved by disconnecting the wire.
So after taking a closer look to the harness, I found two wires cut real short and tied together with some tape.
One is yellow/red and the other is white/green. When I checked the pinout in my "bible" the white/green wire doesn't exist and the yellow/red one is supposed to be like green/yellow...
To be mentioned that my service manual is the 1993 N-American edition
Is it possible that some wires are not exactly the same colors as the jdm FD's?
'Cause I also have 2 or 3 pink wires and in the manual, no pink wires at all?!?
Can some one help me on this?
Rotary Freak
Joined: Jun 2005
Posts: 1,677
Likes: 287
From: sydney
If I was to guess the reason for the cuts, 180kmh bypass for stock ecu, colours don't match what some have done though, so nfi.
The Japanese models do use different wiring colours for their market, worse, there's about 5 or 6 different engine harnesses revisions to 94 in the manual transmission versions alone. If you could verify the pin position on the plug might have some luck. On the 7/94 on Au versions, 3P and 2L have the colours mentioned, but joining them makes absolutely no sense.
The Japanese models do use different wiring colours for their market, worse, there's about 5 or 6 different engine harnesses revisions to 94 in the manual transmission versions alone. If you could verify the pin position on the plug might have some luck. On the 7/94 on Au versions, 3P and 2L have the colours mentioned, but joining them makes absolutely no sense.
Thread Starter
Junior Member
Joined: Jun 2010
Posts: 11
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From: Quebec
That is what i thought.
I based myself on emplacements of the pinout. My white/green wire is at 1P but on the paper it is a "*" symbol. The yellow/red one, I think, is at 1S (stoplight switch) ???
Fortunatly the pfc don't give a &?%
The car drives great since 3 years so it doesn't bother me too much.
It is more like "WTF did the previous owner needed these 2 wires to be connected"
I will try to seperate them to see if something changed in the car operation.
It may have a link with my seatbelt light flashing and the buckle switch ticking each 0.5sec
I think I'll start a new thread for that... REALLY anoying...
I based myself on emplacements of the pinout. My white/green wire is at 1P but on the paper it is a "*" symbol. The yellow/red one, I think, is at 1S (stoplight switch) ???
Fortunatly the pfc don't give a &?%
The car drives great since 3 years so it doesn't bother me too much.
It is more like "WTF did the previous owner needed these 2 wires to be connected"
I will try to seperate them to see if something changed in the car operation.
It may have a link with my seatbelt light flashing and the buckle switch ticking each 0.5sec
I think I'll start a new thread for that... REALLY anoying...
Rotary Freak
Joined: Jun 2005
Posts: 1,677
Likes: 287
From: sydney
Yep, 1P is unoccupied here too and 1S is the stop switch - green wire. Suppose there might be an annoying ding, ding, ding overspeed bell somewhere in there too.
Not sure he proceeded with it, hwnd was thinking of getting the complete jdm documentation about 6 weeks back....for the amount of outlay he would be facing, I'd expect a contribution - if not a bj
for any info.
Not sure he proceeded with it, hwnd was thinking of getting the complete jdm documentation about 6 weeks back....for the amount of outlay he would be facing, I'd expect a contribution - if not a bj
for any info.
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