I think I posted this elsewhere, but you DO NOT have to mess with the tach/instrument cluster for the cruise to work. The only thing that gets you is a "cruise" light when the system is "on" and working (ie, you are cruising with your foot off the gas).

I added cruise to my 94 R2 and left the stock tach as-is. System works great.

I don't know with JDM cars but my car I didn't have to change or do anything with the brake light switch or clutch switch. Both are key parts of the cruise system, if you tap the brakes or push in the clutch the cruise will disengage.

Dale

 

The issue i've ran into on my car is none of the wiring is there, its absent from the harness, even though cruise was available on some JDM 1995's. If I pinned the cruise control wires into my existing harness, I would probably be able to tap the brake and have it work, but I'm not sure what route I'd go if I installed it: a separate harness, or de pinning the wires from a harness that has it and adding it to my existing harness.

 

I believe there are often two clutch switches, but JDM may only have one.

I don't recall seeing the clutch switch in the JDM "Q" wiring diagram, I will have to check again.

I included the example of the manual tach with the cruise display, for reference.

It seems that may be skipped and will save some wiring work.

It seems cruise control was dropped entirely for version four and five cars.

I don't know if it was revived for version 6.

 

I think building a separate harness for cruise would make the most sense. You probably only need to tap into a few existing circuits - power, ground, speed signal, etc.

Dale

 

Project is stalled for the moment, as I am not ready to cut up several complete harnesses for the connectors. Now that the connectors that are needed are identified, I will be looking for scrap harness as donors of clips, or for NOS.

 

oh so the US cars do have two, one for the ECU and cruise control and the other to keep the muggles from putting it through the garage door when they try and start it. it also makes the US cars do the click click and then start, as the circuit was designed without the clutch safety switch

 

Thread discussing sources for connectors.

https://www.rx7club.com/2nd-generati...135085/page2/1

 

Link doesn't seem to be working, Can you try reposting?

 

Can't seem to find it now. Last post the thread was earlier today.

Seems when you look at a "New Post" , it is no longer there when you go back to look for it.

One may need to note which forum the post was originally on.
Which I did not do.

 

Fixed the link -

https://www.rx7club.com/2nd-generati...ctors-1135085/

That's from the FC forum, though. Lots of FD connectors that aren't on the FC.

I think there's a similar thread on this forum as well.

Dale

 

Yeah, I noticed it was for an FC, and those harnesses are quite different, but having not seen the page I figured it may have had a section on 3rd gen harnesses.

 

Would be nice to find a list of the parts numbers and nicknames of the various connectors.

Maybe I will lgo hunt for that "Yazaki" makers site. Interesting that Mazda would change the connectors so much.

Perhaps a new regime for a new generation of cars.

 

sort of. for instance the ECU comes as a package with the computer and most of the sensors (sometimes all, but not always), usually from Nippon Denso. Mazda then buys the harness from Yazaki, and its made to the specs/routing/colors

so ND can have a new ecu, with new sensors and new connectors

 

Headquarters: Tokyo, Japan
Founded: October 8, 1941, Japan
President: Shinji Yazaki
Type of business: Private KK
Key people: Yasuhiko Yazaki; (Chairman); Shinji Yazaki; (President)
Number of employees: 306,118 people (as of June 2018)
Subsidiaries: YAZAKI Europe Limited, Yazaki North America, Inc., MORE


306,118 employees. That is a lot of fingers twisting wires. Private company, too. Amazing.

 

I Have had plenty of late models rhd fds and i have never seen plugs for the cruise control. I think only a couple of the first models had cruise control

 

The option was available to Type X owners. The parts manuals carry the parts up to the end of Version 3, Type X manual and automatic could have the cruise. I have a set of Type X (automatic) harnesses, and the connectors are there. Some are used in other applications, but the 20 pin one connecting the cruise control unit is not doubt unique.

There is some hint that cruise may have only been available on manuals in the first Version manuals (Type X).

Interestingly, in the JDM parts manuals, they do not break out the individual components of the instrument cluster. It says, replace the whole cluster. For the initial Version 1 parts manual they offer six different clusters. These clusters encompass: (1) No-sunroof, automatic or manual; (2) Sunroof, no airbag, automatic or manual; and, (3) Sunroof and air bag, automatic or manual.

The parts manual says that cruise was only available on Type X cars.


Collecting old manuals is an expensive hobby........

 

Found this:;

https://www.rx7club.com/3rd-generati...part-s-984160/

 

This site shows some promise:

https://www.bmotorsports.com/shop/in...niict7j3eot5p3

 

they make wiring harnii for most of the OEMs, i think, plus spark plug wires and other bits

 

Further to all this above, I realized the Cruise Control actuator I had was LHD (thanks Tomnsn16). I have now acquired the proper RHD one from YAJ. I now have a complete set of RHD cruise components. I also have a complete Type X dash which would have the necessary connectors, but I am reluctant to start clipping it. But at least we know what they look like.

 

My issue is I'd have to either A) swap in a harness from a different version, which may or may not cause issues, (like if it's auto, for example) or B) de-pin the wires and integrate them into my harness, being that the wires are not there. On one of the plugs I looked at, the provisions are there for the wire, but its an empty pin.

Do they mention if Version III cars had cruise as an option on manual cars?

 

I'd have to check. But I think only on Verison 1 Type X manual. I think they stopped Type X manual after version 1.

 

I'm assuming my car's dash and engine harness is just a Type R, since that's the base car. Best case they have a Version III car with cruse that is also manual.

 

The final version of the version three parts manual does not attribute the Actuator to any specific type. However, the gauge panel switch for cruise control is attributed only to "AT".

Further the catalogue states that the steering wheel cruise control switch is available on Type X and Type S, and the table in the front of the catalogue attributes only the AT for the those models in the version 3 years.

The version 2 catalogue says the same thing.

The initial series version 1, indicates that MT was available for the Type X and Type S.

The same version catalogue indicates that the steering wheel switch was available on types with an airbag.


I am not sure that this adds up to definitive proof, but it seems likely the cruise was only offered on the automatics after version 1.

 

I'd say you are likely correct in that regard. So it looks like I'd have to end up sourcing an entire harness and just de pinning the wires to re pin into mine