Fiat Ducato Instruments Problems

[marcolr]

Hi m8´s

I´m trying to repair a very common fault in a Magneti Marelli instruments panel of a Fiat Ducato (same as Boxer or Jumper). Some warning lights in the instruments are dimly lit all the time that I turn the ignition on. When I turn the ignition off the same warning lights remains iluminate very dimly and after a while they go totally off.

I know that is a common fault and some dealer change the instruments free of charge. I´ve spent some time trying to find the problem but I won´t get it.

Someone have an idea of the solution?

Regards

[clusters]

Post clear pictures of the back of the circuit board.

Some GM clusters have this problem and it is silver migration or creep corrosion that shorts out the vias on the circuit board. You can fix it with alcohol and a pencil eraser.

[marcolr]

Post clear pictures of the back of the circuit board.

Some GM clusters have this problem and it is silver migration or creep corrosion that shorts out the vias on the circuit board. You can fix it with alcohol and a pencil eraser.

I know that problem, very typical in Ford too. But not in this case. Pcb is perfect! The van is a 2016 year.
Anyway, I edit the post with pictures

Thanks

[clusters]

Then I would be checking the Mosfets that control the LEDs

[marcolr]

I change two PNP transistors that feed the leds but same result. Is something strange, when I put the tempomat and the the led turns on in the cluster, the leds that lit dimly begin to shine more.
But this happens with this cluster. I´ve seen others who are not affected by tempomat use and the leds that lit dimly are differents in each cluster....

[tomvleeuwen]

I am interested in this, since I have a Ducato with exactly the same problem, also becomes worse when cruise control is on. Did you figure it out in the end?

[marcolr]

I am interested in this, since I have a Ducato with exactly the same problem, also becomes worse when cruise control is on. Did you figure it out in the end?

No, still the same. I can’t find where is the problem...

[GT-INFO]

Hi today i get ducato 2015y With similar problems or the same ... mayby somebody have info already?
i finded that this people doing this i have got the same parts numbers dash

https://ecu.eu/fiat/speedometer---display---instrument-cluster/ducato-%28x290%29-instrument-cluster-%28from-2014%29/fiat-1384097080-magneti-marelli-503016020304-120711.html

[Meat-Head]

On topic

1) try warming board see what goes
2) try freezing board

and/or freeze board see when plugged in and left if any ice melts

[Meat-Head]

On topic

CAUTION ADVERTISING

SAYS “ we can fix while you hover, 40 minutes, extra time if you want remove +refit”

https://cartronix.co.uk/product/fiat-ducato-mk3-van-and-motor-home-instrument-cluster-dash-repair/

so 10 mins strip, 10 mins rebuild

unlikly to be processer but DK member preimerd has stated he can remove, refit and programming a 112 pin mcu
using nothing more than hot air and his bellend

[marcolr]

On topic

CAUTION ADVERTISING

SAYS “ we can fix while you hover, 40 minutes, extra time if you want remove +refit”

https://cartronix.co.uk/product/fiat-ducato-mk3-van-and-motor-home-instrument-cluster-dash-repair/

so 10 mins strip, 10 mins rebuild

unlikly to be processer but DK member preimerd has stated he can remove, refit and programming a 112 pin mcu
using nothing more than hot air and his bellend

I removed the mcu thinking that maybe under the mcu was a problem, but all is ok under it.
I can’t find any hardware problem and have no idea were can be the fault.

[Meat-Head]

Ok, if your brave enough to swap mcu, get working set from eBay swap it

and as its in your hand can you LEECH a random dump to use

must be ‘simple’ fault if fan be done in 40 mins

Ring above company and ask how long exactly it will take

[JotaB]

I am interested in this, since I have a Ducato with exactly the same problem, also becomes worse when cruise control is on. Did you figure it out in the end?
Hi
I've got the same problems with same dash from a Peugeot Boxer lights remains iluminate very dimly and it becomes worse when cruise control is on? I've cleaned and resolder the panel and it is still the same... Did someone find a solution.
EEPROM settings for leds maybe?
Did someone manage to repair it?

[JotaB]

Did remove the eeprom and connected the dash and the leds are still dim . Not a eeprom problem. I think it will be on the MCU uPD70F3422GJ!

[GT-INFO]

probably not mcu becouse my MCU is R5F61544 so this is different group mcu ... one group example NEC i understand but next different mcu the same? dont think so ..probelm is probably connections or components bad

[JotaB]

probably not mcu becouse my MCU is R5F61544 so this is different group mcu ... one group example NEC i understand but next different mcu the same? dont think so ..probelm is probably connections or components bad
In Fiat I've read in a forum (https://forums.outandaboutlive.co.uk/forums/Motorhomes/Motorhome-Matters/Autotrail-Apache700-Dim-Warning-Light-Problem/45806/) that with a SW revision the problem is solved. Your MCU will have to be programed the same as mine for the warning lights to appear in a correct way! I think it will be so.

[marcolr]

In Fiat I've read in a forum (https://forums.outandaboutlive.co.uk/forums/Motorhomes/Motorhome-Matters/Autotrail-Apache700-Dim-Warning-Light-Problem/45806/) that with a SW revision the problem is solved. Your MCU will have to be programed the same as mine for the warning lights to appear in a correct way! I think it will be so.

And where you find the file to program the mcu?

Regards

[Meat-Head]

Find. Working set and leech it

[JotaB]

And where you find the file to program the mcu?

Regards
That's the one million dollar question:damnmate::damnmate::damnmate:
BR

[JotaB]

Find. Working set and leech it

Yes maybe like that. But used ones are expensive.


You'll FIND the knives (https://dictionary.cambridge.org/dictionary/english/knives) and forks (https://dictionary.cambridge.org/dictionary/english/fork) in the left-hand (https://dictionary.cambridge.org/dictionary/english/left-hand-drive)drawer (https://dictionary.cambridge.org/dictionary/english/drawer).
:unconscious::unconscious:
Or maybe like this. Who knows!!!:smile::smile:

[Meat-Head]

Find a set with more miles than a spaceship on them, as long as they work

[Meat-Head]

Bumpage and spamming


https://www.digital-kaos.co.uk/forums/showthread.php/788806-fiat-500-dash-board

[migmig85]

Has anyone solved this problem ?

[Meat-Head]

Ok guys i admit, been looking at INFERIOR so called “websites” and dug some useful
information up.

i have washed my hands and hair, wiped my boots etc

CAUTION CONTAINS ADVERTISING


INFERIOR SITE

Cartronix repairs were discussed in this recent-ish forum thread relating to an X250 Peugeot Boxer’s problematical instrument-cluster.

{INFERIOR LINK REMOVED}

It will be noted that Cartronix had two ‘goes’ at fixing the problem, initially replacing the cluster’s display and processor, then replacing another ‘electronic component’. After the 2nd repair the cluster worked for 6 weeks, then died, then recovered. A Peugeot agent subsequently found some loose connections (which may have been the cause of the problem to begin with).

The fault described in that thread appears to differ from the well-known ‘dim/spurious warning lights’ issue that is mentioned on this Cartronox webpage

https://cartronix.co.uk/product/fiat-ducato-mk3-van-and-motor-home-instrument-cluster-dash-repair/

You’ll see that Cartronix say "We replace the faulty parts with new more robust components

[Meat-Head]

CAUTION ADVERTISEMENT

ok, the way video shown could be a false representation, near to mcu checks
with meter 2 components, then remove one, yet another’s video is just the lcd on its own



https://m.youtube.com/watch?v=S1Y1-MX1bEk

[Meat-Head]

Uppage:-

just rung really nice man at “a k speedo” had a talk about this thread
he is going to join this fantastic forum we have and see if we can get to bottom of it.

Remember therez other threads on this subject linked in above posts

[fra69]

i've the solution for this problem.
problem it's some led are defective.
some led not work pefectly as a diode and negative or positive can pass trought diode led.
for find led defective you can check with a 3.6volt battery, put one alimentation on diode thet thurned on weak( anode or chatode) AND try to put other alimentation on diode connected in series, if you find one diode thet turns on your led on with alimentation on anode and chatode ,you find faulty led

[obd.tech]

i've the solution for this problem.
problem it's some led are defective.
some led not work pefectly as a diode and negative or positive can pass trought diode led.
for find led defective you can check with a 3.6volt battery, put one alimentation on diode thet thurned on weak( anode or chatode) AND try to put other alimentation on diode connected in series, if you find one diode thet turns on your led on with alimentation on anode and chatode ,you find faulty led

Thanks fra69 .... Did I understand this correctly? You think the dimly lit LEDs are passing a low current circuit 'leak' back through?
So test with 3.6v battery that they should only illuminate/turn on/conduct in 1 circuit direction only!?
(Sorry I don't understand the part " AND try to put other alimentation on diode connected in series " .... Is there another diode in series??)

Please if anyone could clarify my confusion!!

Where is it possible to purchase replacement LEDs for this & other clusters?

Thanks :):)

[fra69]

Thanks fra69 .... Did I understand this correctly? You think the dimly lit LEDs are passing a low current circuit 'leak' back through?
So test with 3.6v battery that they should only illuminate/turn on/conduct in 1 circuit direction only!?
(Sorry I don't understand the part " AND try to put other alimentation on diode connected in series " .... Is there another diode in series??)

Please if anyone could clarify my confusion!!

Where is it possible to purchase replacement LEDs for this & other clusters?

Thanks :):)

you can use led from some used cluster. i've many flautly cluster in my warehouse and i use it.
for explain the problem it's easier show you then explain thet.
i've repaired many cluster with this problem.
also golf 6, panda 169, g.punto and other cluster have this problem, but ducato it's most common.

[romey]

you can use led from some used cluster. i've many flautly cluster in my warehouse and i use it.
for explain the problem it's easier show you then explain thet.
i've repaired many cluster with this problem.
also golf 6, panda 169, g.punto and other cluster have this problem, but ducato it's most common.

Thanks for the info. I tried to test the led as you stated but when using a 3.6v battery the led blew up. This was on a Fiat 500 speedo which suffers the same problem. Do you know the led ratings for replacement? I know they're 3528 PLCC-2, 20mA. Just unsure of foward voltages and mcd

[duzaven]

I have cluster instrument from Boxer ( 1383776080 )On cluster instrument lights are sometimes dimly lit even when the vehicle is turned off the lights remain on causing the battery to go flat.i found and replaced one led diode,but the problem remains

[Meat-Head]

Can you use inferred thermometer see if anything ‘hot’?

[duzaven]

i can try measure component temperature.I also think it's a leak from smd ,and in can bus wrong signal sent.

[Meat-Head]

Don’t think canbus as it goes to sleep and also you send clocks and work on return

[szpectronik]

Hi, I have the same problem Fiat Ducato with dashboard led small lights abs, airbag, temp max, against fogging, handbrake, small lights is when the dashboard wakes up, the same when driving, these lights do not light up with others, when waking up correctly none is lit ... do they get power from another pcb component ?? smal lights for the moments when I connect only gnd pin 1 and pin 2 +12 on the table, is there any solution ?? I'm sorry for my English

[Meat-Head]

If it is faulty can you put it in a plastic bag, put it in freezer for one hour with power see if anything not frozen?

[Meat-Head]

On topic

change any big capacitors

[szpectronik]

I had two dashboard org 2009 and I bought a used 2014 two had the same defect but different controls were lit, the new one was bought because the client wanted to run more than 400,000 dash 2014 is already running but there is a fault, heating it in the workshop did not change anything, but it seems I think it was shining more in the cold outside, I have left from 2009 on tests, so in my free time I will check what you say and freeze him

[Meat-Head]

If freezer makes it worse, then slowly warm each part of the board up

[Meat-Head]

SPAMMING LEECHED FROM AN INFERIORITY FORUM

[/code] Hmm I didn’t realise it was a fault. I had complained about a dimly lit dash at service time and the dealer fixed it with a software update. 2016 Ducat.[code]

[Aislingob]

gonna have a go at this Ducato dashboard today , has anybody got the power up for it please

[marcolr]

Pin 1 - GND
Pin 2 - +30
Pin 3 - +15

Regards

[autodigitec]

i've the solution for this problem.
problem it's some led are defective.
some led not work pefectly as a diode and negative or positive can pass trought diode led.
for find led defective you can check with a 3.6volt battery, put one alimentation on diode thet thurned on weak( anode or chatode) AND try to put other alimentation on diode connected in series, if you find one diode thet turns on your led on with alimentation on anode and chatode ,you find faulty led

I had a dashboard this week here to repair and this post explains everything you need to do!
In my case, 2 leds were faulty(reverse leakage current), replaced, and everything is fine. Tested all led activations via diagnostic, 1 by 1.

For those who are not used to these kind of tests, make sure not to put 3.6v directly in the leds, use a a resistor (100 ohms minimum) on positive lead.

[jlperf]

did anyone work out what the led model actually is so you dont have to use second hand ones and can replace as needed?
3528 PLCC 2 3v?

[Meat-Head]

Is there nothing on eBay

[death9891]

Hello, a slightly different topic, but it concerns the seat belt warning light on the Ducato
I need to know what this element is: SMD connector, designation 156
the seat belt buckle responds to a magnet

1017296

[Meat-Head]

Hello, a slightly different topic, but it concerns the seat belt warning light on the Ducato
I need to know what this element is: SMD connector, designation 156
the seat belt buckle responds to a magnet



ah, one of them, don’t know what your game is, but we had one customer wanting seats belt buzzer off, was UNABLE TO DO ANYTHING with it.

[death9891]

The buzzer can be programmed, e.g. Fiatecuscan, but the indicator light cannot.

[D0k1]

i've the solution for this problem.
problem it's some led are defective.
some led not work pefectly as a diode and negative or positive can pass trought diode led.
for find led defective you can check with a 3.6volt battery, put one alimentation on diode thet thurned on weak( anode or chatode) AND try to put other alimentation on diode connected in series, if you find one diode thet turns on your led on with alimentation on anode and chatode ,you find faulty led

I have a same problem with an Instrument Cluster of Ducato (1370983080). Five LED-s dimly lit after the ignition switch off.

Im afraid, I can not understand correctly this method. For example, I can not find series connection between LED-s, only parallel.
Do you guys can use this method and can solve the fault?

If yes, could you give a detailed explantion about this checking method and the solution?

Thanks in advance!

[xaimitu]

I have a same problem with an Instrument Cluster of Ducato (1370983080). Five LED-s dimly lit after the ignition switch off. Im afraid, I can not understand correctly this method. For example, I can not find series connection between LED-s, only parallel. Do you guys can use this method and can solve the fault?If yes, could you give a detailed explantion about this checking method and the solution? Thanks in advance!I replaced the DC converter, both OPamps and all the LEDs with "expensive" ones... The LEDs from marelli are 25% chinesium and will fail eventually with the currents they are subjected to.Solved it for me. (No, i didn't care to test one by one and try to induce reverse current thru the leds connected to the dim lit ones...)

[xmalakx]

Hi Guys.
I repair that kind of problems.
You must change every single LED diode, green ones turn signal, cruise control and position light, every yellow/orange warning light and every red LED and one blue on high beam light.
When You change all leds that You have 99% chance to everythink will be ok :)
I repair about 50 pieces already and only 2 times I still have issue after change leds. I think that will be problem with some small capacitor.
Best regards

I repair this in Poland and whole Europe. Shipping to Europe about 19 Euros, repair 49 Euros.
Best regards

[Meat-Head]

Careful advertising on here, brakes the rules, But what a bargain price

[kostelectronics]

i bump up this thread again.
I have such a cluster here to repair (2014 Ducato). I found no LED with backwards leaking current (tested 5V @20mA). I suspect a timing problem from the MCU (clock) or too less deadtime on the LED's when they should not lit.
Does anybody share a dump from a updated cluster please? i will pay, no problem.
BR Matthias

[kostelectronics]

Found the Problem! One LED had a leak-current (30uA). If this helps somebody..

[Meat-Head]

Found the Problem! One LED had a leak-current (30uA). If this helps somebody..

I don’t “understand “ how it can be faulty led. Led is a “bulb”
Presumbly it’s gone dead short, but why power the thing up?

[kostelectronics]

This dashboard is very complex! Usually, the LED's are driven by a driver-chip for each LED separate and all LED's have a common GND or permanent supply and beeing grounded when they should lit.

The LED's on this dashboard are serial driven with a clock signal. you can see PWM on each LED on both sides. It's like a Matrix, there is no permanent GND on each LED, the LED anode and cathode are both CPU controlled. That means, the CPU have a few data lines which control the LED'drivers. The LED-Drivers provide ground and VCC only at a certain time when the LED should turn on. There is a base frequency of the system and the LED on-time is controlled by serial sequencing from the CPU. The current passes trough several LED's until it closes the circuit for the on-time. if one LED leaks current, the current can flow to other LED's that not should be lit at this certain amount of time. in my case, 30uA was enough to light up dimly several LED's on the board. The faulty LED (park-brake) was fully normal in function, but the leak-current caused the airbag-lamp to glow.
it's very complex to explain. I hope you understand what i try to explain :)

[Meat-Head]

Yes thanks. I understand but didn’t, matrix makes sense, thanks

[kostelectronics]

it makes sense for Marelli, because it's cheaper in production!

[xmalakx]

Hi. In repair about 50 pieces of this. Best way is change every single diode and will be work. Diode leaks after few years of using. There is very difficult to find which one is fault. I change everyone and everything is fine. Diodes are very cheap. Best regards