'04 MSM ABS Wire Harness
#1
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Can someone help me with wiring the MSM abs pump into an NA chassis w/o abs?
I have all the parts, but I just need to know how to wire it up. The air bags have been deleted in the car so I was planning on using those "open" fuses for the 30a and 20a power source. I just don't know which wires are which, so any help would be amazing.
I'd also like to wire in an on/off switch for it too. I'm a nut/bolt guy and a total
when wiring gets mixed into a job.
I have been reading lots of thread but none of which actually spell it all out.
Thanks guys.
I have all the parts, but I just need to know how to wire it up. The air bags have been deleted in the car so I was planning on using those "open" fuses for the 30a and 20a power source. I just don't know which wires are which, so any help would be amazing.
I'd also like to wire in an on/off switch for it too. I'm a nut/bolt guy and a total
![Loser](https://www.miataturbo.net/images/smilies/sign0058.gif)
I have been reading lots of thread but none of which actually spell it all out.
Thanks guys.
#2
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You are on the right track using the spare heavy fuses in the engine compartment box. See if this scan helps. I don't have a digital version of the page besides this. IIRC, you need two power leads (heavy 30A and lighter 20A). Put your switch (with relay?) on the 20A side. You'll need a ground or two, a brake switch and a pair of wires to each corner for the wheel sensors. You won't need the data link and if you want to hook up the dash light, go for it.
*edit - it looks like three +12v leads.
*edit - it looks like three +12v leads.
![](https://www.miataturbo.net/attachments/suspension-brakes-drivetrain-49/94935-04-msm-abs-wire-harness-scan0012.jpg?dateline=1384756344)
#3
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I did it in mine (03 ABS into 99 chassis), build thread here:
https://www.miataturbo.net/build-thr...into-nb-73579/
--Ian
https://www.miataturbo.net/build-thr...into-nb-73579/
--Ian
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