Here is a random dash harness I have. Could be from my Type X (or from a Type R).

 

The Russian site says this harness is from a 1992 Type X. Which is....Bingo!

(Another site lists this harness as available....for Y99,000.)

 

What would I have to do in order to motivate you to part with it?

 

Upon further perusal of the wiring manual it seems that the connection point (3L) circled in Yellow is the connection for the manual with cruise control. This opens a bunch of questions. Such as, is the black square connection necessary. If not necessary, would there be a different circuit board related to the manual and what would the display look like. The manual shows that only one pin (5E) in the black square is for the cruise control for the automatic, the rest of the pins (5A~5L) are for the automatic selector indicators, etc..



Manual Cruise control connection.

 

If I had to guess, the black plug only serves to illuminate the "cruise" letting on the tach. Does that cluster you took a picture of have the lettering on the tach for the cruise control? If not, that would be interesting to see the backside of one to see what all is different.

 

Well. That cluster is for a US manual. And there is a small letting in the tach face. Also that circuit seems connected to the recess for a light bulb above, which lines up more or less, where the letting is on the front. There is also a light bulb in the air bag recess, but that could have been put there at random. Michael refurbished seven clusters for me, out of nine I supplied. In this case I think he used the white case from another cluster. So that blanked white square may be misleading. I have a Canadian version manual, here there is no letting in the tach-face and the light bulb receiver is blanked, and there is only a hole where the black square is (in this case covered by the flexiboard)

 

So essentially we would need someone to take a picture of their cluster that has cruise. Well, of the back of it anyway. Actually, now that I think about it, the cluster repair thread should have pictures that would work.

Edit: The cluster in that thread was an auto, so that didn't help, but I manged to find a video on youtube of a cluster that looked like a USDM cluster that was five speed. It had no hole on the back, and just part of the flex board covering where that black plug would be on an auto cluster. The tach did look like it had the lettering for cruise. So..I'm just guessing here, but it looks like the provisions for the cruise lights on the tach are built into that one plug you mentioned.

 

Yes lots of rabbit holes. I suggest you google Michael Gagne's instagram or facebook pages.

I am reluctant to start pulling my clusters and circuit boards apart, as it takes a careful hand to avoid damaging things.

 

I had some luck with youtube, I edited my post above.

 

Until now i wondered what the letting on the USDM manual was for. My guess was it was a tach redline warning indicator, but likely not.

 

The lettering on a USDM manual is very much for cruise.

 

FYI the R1 models didn't have the "cruise" light at all on the tach, it's not on the tach face what so ever. You really don't need that for cruise control to work, that just lights when you turn the cruise system engaged. My car is an R2 and doesn't have that light, I added cruise and it works perfectly. You pretty much know the cruise is engaged because the car keeps a steady speed .

Dale

 

Yeah, I wouldn't be surprised that they didn't add it to the non cruise models. I'm assuming your wiring harness had the plugs available for cruise. Mine however, likely won't. I don't remember seeing the one plug for the main switch when I pulled the hood off. My FSM and wiring diagram for a Version III car shows cruise listed in the wiring digram, it has a whole section dedicated to it so you'd think it would have it. However, the B-X were assembled towards the end of that year I believe, so I'm wondering if the harness on my car just doesn't have the provisioning for it.

Edit: Though I do have the bracket on the throttle body, go figure.

 

We could keep guessing all week, or Dale could, kindly, tell us how to do it.

If we need not bother with the idiot light on the tach, then we may need not bother with the instrument harness?

(Or maybe not. Seems the main switch runs through the instrument harness.)

 

For anyone that might be looking into the same thing.. Version III cars that do not have cruise from the factory do not seem to have the wiring in place for it.

 

Here is a tach with a cruise display window. I suspect from a JDM Type X Manual (but I could be wrong).

 

I wish I could tell you how to do it

I have about 15 minutes total of hands-on with a RHD car. If it doesn't have the wiring in place for cruise that makes adding cruise way more difficult, you'd pretty much have to build a whole harness for it.

It's news to me that some JDM models didn't have the wiring/connectors in place. Unless something is weird with this one car (like someone hacked out those connectors).

Dale

 

cruise control seems to be a really rare option outside of the US

 

It seems Mazda was quite happy to pump out different versions of harnesses. In the Version 1 supplemental parts catalogue there is about 39 versions of the "030" instrument harness (I) and 20 of the "040" dash harness (D).

I don't know if they were that crazy about saving weight, or what was going on.

It seems that it may only have been on the Version 1 series that cruise was offered on a manual, the Type X manual. But I could be surprised.

I think we are finding the cruise related connectors are missing from the non-cruise cars' harnesses.

I am trying to determine if cruise was always linked to having sunroof or not. I suspect so.

The different harnesses seem linked to whether a car has sunroof and/or AM FM CD (which likely means the Bose system) or does not have either .

Ad to that to improvements in the basic harness and you end up with a lot of different harnesses.

Once all the connector pins involved are understood, it may just be matter of collecting the relevant cruise related connectors from scrap harnesses and fashioning a new harness.

It seems cruise was dropped from all FD after 1995 (but i could be mistaken).

@Ceylon

 

Yes, @Ceylon , if you would be willing to tell me how, or if you would be willing to make one, I'd certainly pay for it.

 

there is either some little change or its just a different batch, usually the different harnii will supersede to one or two numbers. for instance the LHD engine harness starts at N3A1-18-05ZC and goes all the way to F, they did make a few changes, but the current number fits everything

 

What we are looking for, or hoping for, is that the harnesses would have been standardized and there could be "dangling" plugs for options not provided on a particular model. Have not found evidence of that sort of thing yet.

 

you'd have to just check all the numbers and see what you can still get, if anything

 

If not the harnesses, then at least the clips. Need to find a source for the individual clips.

I am finding them here and there, but looking for the motherload.

Local yard closed and about seven Miata got crushed.

Would have been nice to have a chance for a little harness clipping before they departed.

 

This post summarizes my findings on hunting down the components you would need to retrofit a cruise control system onto a Manual RHD FD. I

t does not take things to a final completion.

I seems Mazda created many different harnesses; and non-cruise control car's harnesses do not seem to have any redundant wiring for cruise control.

So it seems to install cruise on a manual, that did not have cruise control wiring to start with, you would probably want to put together a custom harness specifically for the purpose.

(Although there is a connection to the ecy and diagnostic module, my understanding is the cruise control has an independent controlling chip.)


Six components for cruise control set-up for Manual RHD: Clockwise: Rare Manual Tachometer with cruise on indicator (green rectangle faintly visible), Cruise Control Unit on Brace; Actuator with short throttle cable; Cruise main control switch (with caps); Steering wheel cruise control switch; Brake light switch for cruise control.

Location of key components.


Four pin connector on the actuator

Location of the Cruise Control Unit (beside drivers knee on RHD.



Chart showing the pin connection points of the connectors of the key components.



Japanese colour characters used on JDM wiring charts.

Schematic showing the early configuration showing wiring route for manual (with cruise control).



Connection point (3L) for cruise control segment on the flexiboard. . For automatic the connection is combined with the plug for the automatic indicators (normally located in the white square.)

Connector on dash harness for the Cruise Control Unit (20+ pins),

Connector plugged into Main Switch (damaged example).

Plug for Connector to main Switch. It seems the same connector is used for the companion headlight lifting switch.



Q-04 the wiring pattern forthe actuator connector. We found the same connector may be used for the headlight lifting motor connection. Also for the ignition harness connection to the coils and the 1-2 switch on the manual transmission (if you are looking for a connector to scavenge - as we are.)