Retrofit OEM cruise control

[oitar]

@Bart83 very nicely done, wish you did it before I started last year(and still haven't finished)!

My main battle was to run the wire from the brake pedal to the ECM A41 pin. I did it last weekend, had to go through the passenger door harness, and under the dash board. Mine is a right-hand side steering wheel, so the harness looks slightly different to yours.
Also mine is a CVT transmission, and probably need to do something in addition, because it still doesn't work
AFAIK the clutch pedal signal in my case will be a GND signal to pin B29 of the ECM!? If I measure the pin(with the battery disconnected) I get around 10-15 Ohms to GND in D and S positions, and infinity in P, R, and N positions. If I ring the wire from the pedal to A41 I read around 1 kOhm to GND(reading from the ECM), and infinity when brake pressed. So this wire supplies +12 V to A41 when brake released.
I described in previous post my wiring from the new steering wheel buttons to the GCM module.

When Cruise Main is switched on, the light comes on. But if I drive over 60 kph and try to engage CC(pressing the Set/Decel button) nothing happens.

Has anyone ever had a firmware with CC disabled, or am I forgetting something, or my wiring is bad?
Will listen to any suggestions, and update when/if I get it right.

[oitar]

Ok, can anyone confirm this: Do I need to supply gnd to pin A43 of ECM? I don't have a clutch, and according to all info so far, I shouldn't!
But at the same time, all reported successful fitments so far have been on manual models.

[renan.feitosa]

have you solved? i had the same problem doing on a DX 1.4L AT

[oitar]

have you solved? i had the same problem doing on a DX 1.4L AT

No luck yet. I connected a permanent gnd wire to ecm pin A43("clutch released" for manual models), but it did not change anything. Both inputs A43, and A41("brake released" +12V signal) have around 1.3 kOhm input resistance, and with both signals supplied(and "Cruise Main" light on) pressing "Set/Decel" while driving over 60 kph, "Cruise Contol" light does not come on.

When I get a chance, I will re-check my button wiring.

[MiniNinjaRob]

I'd like cruise control. Very useful and one of the standard fit items I look forward to when I upgrade to a MK3 at some point in the future.

Never used active cruise control, don't think I would like it tbh.

I agree with Lordv, cruise is for empty straight roads. Back when I was doing 50k a year in my company cars, cruise was a god send. These days, at around 15k and not many long journeys, I don't really miss it. Be nice to have though.

If you get a car with good active radar cruise it’s amazing. I love standard CC and when my new work car came with it I ended up using it all the time. In traffic jams it’s a godsend as it just follows the car in front at a safe distance.
If you get a car with a good system you will love it too if you like standard CC

[german-hans]

Hello everyone!

I'm still quite new in the game, but really enjoyed this topic. Almost there trying it on my own and got all the main parts needed. Just wondering which connectors to use for the additional wiring (e.g. terminal pins for ECM/PCM, fuse box, cable reel or the new added switches...)

Thanks for your help!!

[german-hans]

Anyone any ideas?

[underworld]

Can you guys please specify the pin size?

[underworld]

Ok, can anyone confirm this: Do I need to supply gnd to pin A43 of ECM? I don't have a clutch, and according to all info so far, I shouldn't!
But at the same time, all reported successful fitments so far have been on manual models.

 
Automatic model, connects to only one A41 cable. Mine found a mistake on the pin. Change it to match the model and it can be used.

[oitar]

 

Automatic model, connects to only one A41 cable. Mine found a mistake on the pin. Change it to match the model and it can be used.

Do you mind sharing what the mistake was?
I installed HDS, and all button inputs check. The transmission range input is apparently called "Forward", and is on only in D and S. Couldn't for the life of it find the brake position input. In all data lists throughout HDS, every reference to brake switch is the one that operates the brake lights, i.e. comes on when brake pedal applied.
Don't know if this was the last obstacle to prevent CC engaging, but I had to put back my original clockspring- the Airbag Check System message started appearing.

[JasonH89]

Hello fellow Jazz drivers. I have been reading this topic for some time and I want to thank everyone who contributed to it. With help from this topic and other courses the retrofit of OEM Cruise-Control to my Jazz was successful    Below a short report of the work done, I hope this will be off help to others . . .

My Jazz :

2011 Jazz 1.4 ivtec , stock steering wheel control for radio and info-panel. Panel self test shows cruise control indicator lights.

Items needed to change or added: 

- Steering wheel with cruise control buttons (found one one ebay)
- Cable reel (stock has not enough pins, founds one from a crashed Jazz Hybrid)
- 2 pole Brake-light Switch (stock had a single pole)
- Extra clutch switch
- Wiring sets on amazon are perfect for the job

Added wiring:

Cable Reel (dashboard side):

Pin   Color   Function

13   RED   Set/Decel  >>  to GCM pin 20
14   BLU   Resume/Accel  >>  to GCM pin 19
15   PNK   CC main switch  >>  to GCM pin 22

Instrumentpanel:

Pin   Color   Function
19   BLU   Resume/Accel
20   RED   Set/Decel
22   PNK   CC main switch


Brake Switch:

Pole   Pin   Colour   Function

 2    3   YEL   Ignition +ve battery via fuse #12 10amp
 2   4   BRN   to ECM pin A41  BKSWNC

Clutch Switch B:

Pin   Color   Function
1   WHT   ECM/PCM control signal to A43
2   BLK   To ground point G401


Engine Control Module Connector A (white):

Pin   Color   Function
41   BRN   Brake switch pole 2
43   WHT   Clutch switch B

Wiring scheme for cruise-control system :




ECM connector :




Clutch-switch :




New brakeswitch & clutch switch:






Cable reel stock vs new:









General info:

On YouTube there are many video on how to remove the battery, airfilterbox, covers, steering wheel and instrument-panel and how to add or remove pins from existing connectors so I will not post this info here. I found this link very helpful : https://www.hondata.com/help/flashpro/index.html?ecu_connectors.htm
I forgot to make pictures while installing the brake and clutch switch so the drawings and schemes will have to do

Wiring between cable-reel and instrument-panel:

Cable-reel dashboardside:




(the green wire is for the phone buttons (added a android radio also)




Instrument-panel connector:




Engine bay wiring:









ECM connector A (white)






When all this was done it worked! No need to program with HDS.





Hope this is off help to other Jazz/Fit drivers

Kind regards from the Netherlands,

Bart

Hi Bart,

Firstly thanks for your write up which I have followed and got all I need.

Just wondering if you could confirm the pins needed for the phone buttons?

I got a steering wheel from eBay and it has all the buttons with the 2 x phone buttons underneath and the cc etc

I see you mentioned the green wire on your write up for the phone but where does it go from pin 16?

Any help would be appreciated 😌

[JasonH89]

Hi Bart,

Following your amazing write up for the cc retrofit.

Any chance you could help with the phone buttons?

I have everything I need just don’t know what pins to use for the phone buttons to work?

Looks like you connected in to pin 16 on one of the connectors but don’t know where this goes after that

Please can you help me 😌

[Bart83]

Hi All,

Sorry for not awnsering your questions, just do  not check in that often. Not sure about the phone buttons, just connected them as per the wiring scheme.

I got a pm from ''Meatball (Robert)'' but somehow i have no acces to my inbox, please find me on fb or ask the question here.

Kind regards,

Bart Lammerse

[meatball]

I'm also not able to see my PM inbox/outbox anymore. Strange..

I wanted to thank you for your great manual to build in cruise control!
Question was; Do you have part/oem numbers of the parts you have bougt/changed?

[EvanLaBanane]

Hello everyone, I’m writing on this post to first of all thank Bart who provided an exceptional tutorial and made it possible for me to install an original cruise control system on my 2009 Honda Jazz 1.4 i-VTEC (France).

As a complete beginner in cars, soldering, and electronics, I faced many difficulties and doubts during this installation, but I finallly succeeded.

So I wanted to describe the main problem I encountered: the only difference from Bart’s tutorial was that my vehicle didn’t have the black wire from pin 2 of the clockspring connector going to ground point G501.

I was very lucky because I was able to buy the T5 clockspring and the steering wheel on LeBonCoin, a French second-hand marketplace. Then I bought the clutch pedal switch and the 4-pin brake pedal switch on Ovoko. I also got various supplies on Amazon, such as electrical wires. I spent a total of €100, which is really reasonable for such a huge comfort upgrade!

My second biggest difficulty was the female pin connectors, as I couldn’t find a model exactly like the original ones. So I salvaged and used the ones from my original steering wheel. With a few squeezes of the pliers to flatten some of them, I managed to get good electrical contacts! If anyone has the exact reference for these connectors, I’d really appreciate it!

And finally, I made great use of this website, which lists absolutely everything about the Honda Jazz/Fit: https://hondafitjazz.com/manual3/ . By clicking on Cruise Control System, you can access lots of diagrams and troubleshooting guides to ensure a proper installation and also help with debugging.

Thank you so much to this helpful forum, I hope these little details can help others too!
Evan