Project 1.2 Cruise Control w/clip

[MWright]

First off my car was wired from bulkhead inside the cabin I had to create the wiring loom from the bulkhead connector R107 to the ECU.

I have the D4F 712 variant with the ECU mounted to the rear of the block/rocker cover.

After a session programming the dials (they are PH3 so they're digital) I've got the limiter to activate with ignition on and SET ---- is visible

Yet once the switch is changed to CC no green light emits and clip doesn't see the status mode activate but limiter mode is visible.

Neither of the steering controls for CC are seen, I'm unsure if this is anything to do with me not enabling anything on the ECU to do with CC/Limiter

I've belled the wires from my loom into the cabin and they're fine I've also fitted the clutch switch.

I'm having fun browsing the French Clio forums for similar issue to see if they've resolved it.

Now it could be I need to enable CC in the ECU, to which CONFIGURATION is greyed out or my clutch may not be earthing too thus not enabling CC to activate.
AlexW GrahamS

 

[AlexW]

TBH, I've never done it on a 1.2. I'm surprised the config option is greyed out (I get what you meant in your PM now).

Switch is deffo good isnt it? (thinking perhaps the cruise control side of the switch isn't working?)

Shame you're not closer.

 

[MWright]

Yeah Graham showed me screenshots of the process on his diesel and thinking it would be the simple same as that but petrol injection instead.

Confused how it's greyed out unless it needs a specific method to allow me to do the config.

I hadn't actually done a continuity test on it. But then still doesn't explain the steering controls not being seen on clip diag, unless ECU needs to be programmed for them to be seen.

Yeah I know my sisters down your neck of the woods if I've not sorted by the next I'm down haverhill I'll pop by.

 

[GrahamS]

If you go into the list of status it should show - + R or O for the cruise control buttons when you press them. Also limited or regulated for speed control.

You could take the switch out and put a wire between a2 and a3 which should turn cruise on. I found on Lauren's digital dials that the green cruise light was far dimmer than the orange speed limiter light.

Have you tried driving along and test the speed limiter? My dci worked without configuring it to have cruise/speed limiter but it was just a little rougher

 

[MWright]

Yeah I did a functions test and + - R O were not visible by clip I'm gonna bell every single wire from switch to ECU to check there isn't a break in the site.

I've tried putting a wire between and cruise doesn't turn on, even if it's faint the set ---- doesn't appear on the dash when I try to engage CC.

I've tried driving along and I can't even turn on the limiter, I think it's due to me having a status 1 on deactivation of cruise/limiter on a function test which means something isn't quite right whether that be wiring or programming, I don't know just yet.

 

[GrahamS]

Not a functions test but this bit where it says steering wheel buttons. Try something you know works like the brake pedal switch and then have a button press.

Odd that the speed limiter doesn't work!

 

[MWright]

I've just belled all the wires they are fine!

CC switch is fine, steering buttons read right values etc.

I think what's stopping anything happening is the status 1 on CC/Limiter deactivation which is a fault but I don't know where!

 

[GrahamS]

If you click on the code number does anything come up. It should tell you what status 1 means.

In the above screen shot et266 is clickable to give info about the status meaning

 

[MWright]

Yeah it states 'Cruise Control/Speed Limiter Fault' I'm puzzled as to why only the limiter is activating without engine running.

 

[GrahamS]

When you turn the ignition to the second click the ECU has all the inputs of when it's running. The cruise light will show and buttons show function without the engine running

 

[GrahamS]

When you turn the ignition to the second click the ECU has all the inputs of when it's running. The cruise light will show and buttons show function without the engine running

 

[MWright]

I am doing the tests with ignition on second click. I have reprogrammed the dials to without and then I'm going to program them back again as I swapped to my original dials thinking my ones weren't compatible. So I'll try from scratch again if that makes any difference but I still have no way of enabling CC/L in the ECU unless it's not needed.

 

[GrahamS]

Try your original dials I suppose. Sounds like the ECU needs a little persuading but I have no idea how. Maybe MicKPM can shed infinite wisdom

 

[MWright]

That's what I'm hoping but no way to enable anything in the ECU as of yet.

 

[MicKPM]

That Sagem ECU will not "do" cruise, I'm certain it is unable to hold a load site

 

[GrahamS]

Is there a 1.2 ECU that can?

 

[MWright]

There are 1.2s on forum-Clio both with/without digital dash that have operating CC.

 

[MicKPM]

What spec is your UCH?

 

[GrahamS]

Cruise control doesn't go through the UCH but at this age of clio I thought they were all n3 but some programmed as n2

 

[MWright]

N3 I just found it strange as it was pre-wired in the cabin. Also that the only ph3 thing about it is the digital dash and still has the ph2 engine.

 

[MicKPM]

But management system isn't, it's the ECU that does it. You need to check hardware version

 

[MWright]

I'll have a look next time I plug it in, cheers for the help guys!

 

[MWright]

MicKPM hardware version is 8200181482

and the instrument panel

 

[MWright]

I think this is going to come to a stop unless I gain infinite wisdom.
MicKPM is this hardware version inept of holding CC?

If not is there another version ECU that I can replace it with alongside UCH etc...

 

[MicKPM]

You need the later S3000 I'm afraid and that won't work with your CAN

 

[MWright]

Help is appreciated Mick cheers.

 

[Ethan1996]

Hey guys, looking for your advice but sorry if i'm hijacking the thread a little! Wheres the best way to start trying to retrofit CC into my MK3 1.2? I know its an option that wasn't selected on the car, and I know the wiring is there behind the dash for the buttons by the headlight adjuster. Its the ECU i'm worried about holding a load like you have been discussing. Is there any easy way to find out if it can/what type of ECU my car has?

Thanks

 

[tsitas tsitoulis]

hi guys. i made a mini research for the matter. i think its an ECU job for the cc to work. i found out that clio ii ph4 1.2 16v (campus) supports cruise cotnrol. it has a uch N2 but the motor changes it uses a D4F 722 NOT a D4F712. it also uses another ECU and NOT magnetti marelli like the D4F 712 does.