Cruise Control Module

[Sudesh]

Its a long shot but, does anyone have a spare cruise control module from a manual transmission car that they fancy opening and taking some pics of the board? or could send to me for testing?

Reason I ask is, a few of us have JDM cars and JDM cars have a limiter on the cruise system which doesnt allows cruise to be set above 70mph.

So I have a feeling its down to the cruise control module. I have a spare JDM cruise module that I have opened up and would need either a US/UK/Europe module to compare to the JDM one.

If someone had one spare and didnt mind opening it and taking some HQ pics so I can see whats different inside it would help; or if you can send it to me it would mean I could plug it straight in and test if it is the module that limits the cruise on JDM cars.

It only take 5 mins to open it and it can be closed back up again and the module can still be used.

Happy to cover costs of postage, its a tiny box and weighs less than a mobile phone lol

It looks like this:

[Sudesh]

First Would like to thank Connor for taking the time and trouble one nite to look for the Cruise Module; as they say you learn something new every day and turned out 02+ cars dont have one so my thinking is drive by wire cars dont have the cruise module. Kaz will fill in the rest lol

Second would like to thanks Shane for spending some extra time today to allow me to borrow is UK Cruise Module.

So with Shane's module out, he immediately spotted the box/casing was larger. After taking the unit apart and pairing up the boards it was very clear to see the difference in size. At this point I dont think its a simple case of adding/removing chips/capacitors etc to make the JDM cruise work over the limiter.

Kaz, I would be very interested to hear your thought as always.

[Sudesh]

[NSX 2000]

It's like playing "spot the differance". Can you see the diffeance between picture 1 and picture 2.

At good guess one is CM01 control unit and the other is a CM02 control unit

[Sudesh]

It's like playing "spot the differance". Can you see the diffeance between picture 1 and picture 2.

At good guess one is CM01 control unit and the other is a CM02 control unit

There is much more going on than that!

I recently done a PCB upgrade between UK Mitsubishi 3000GT and JDM GTO and the findings was interesting. [well if your into that type of thing] lol

[greenberet]

JDM cars have a limiter on the cruise system which doesnt allows cruise to be set above 70mph.

Just as a data point, the cruise control on my 1991 USDM NA1 5-speed cannot be set to speeds above 200 km/h (124 mph).

[Sudesh]

Just as a data point, the cruise control on my 1991 USDM NA1 5-speed cannot be set to speeds above 200 km/h (124 mph).

Thanks for that info, thats good to know as one of the UK members was actually looking at purchasing the cruise module from the US!

[nobby]

SOUNDS a GOOD enough limit TO ME

Thanks for that info, thats good to know as one of the UK members was actually looking at purchasing the cruise module from the US!

[nsx009]

Bringing a old thread to life!
I have a JDM 1996 Coupe and the cruise wont engage over 109 KPH and I really need to sit on 113kph. Did you guys get anywhere with this as above? I have a 1995 Australian delivered Targa which sets at higher speeds, not sure how high, but could try that unit in the JDM car.
I am getting a speedlimiter from HKS to cover the 180 KPH restriction.
Thanks Scott

[Kaz-kzukNA1]

Cruise control on DBW car is done through the ECU so it involves several things to change the max cruise speed limit. There seemed to be some filter/mapping used in order to prevent sudden change in speed or hunting so I don't think it will be a simple task compared to the non-DBW model.

For the non-DBW model, cruise control is calculated inside the control unit behind the glove box and it simply controls the actuator in front of the Brake master cyl.
On JDM model, the logic for the max cruise control speed can be changed.
I don't know how fast it can go as I don't have access to the rolling road but it's working on my JDM non-DBW NSX.

Not much help for you.....


Kaz