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Technical Short circuit to ground
Any chance water has got in ECU etc? Has it been flooded?
Apart from that earthing points are often a good starting place on many Fiats. Then any corrosion at wiring plugs.
I have a 2010 Fiat Scudo 2.0 which is the Peugeot engine , I am guessing yours is a 1560cc Citroen/Peugeot unit rather than the 1598cc like I have in a couple of 2010 Doblos.
The reason I am saying this is yours probably has the additive bag just forward of the n/s/r wheel along with the pump etc. similar to a 2012 Citroen C3 Picasso 1560cc I had. So you may get extra information via a Citroen /Peugeot Forum.
Your 9HU engine is used in the Peugeot Experts.
Not been flooded, it happened all of a sudden, every code saying short circuit, ive looked at all the fuses, took battery live off then unplugged ecu then replugged cant see any damage, even checked earth from front to battery, i have new fuel filter and primed, non runner
Most of the error codes seem to reflect a wiring issue, so hopefully not ECU or BCM, generally lots of people blame a computer but usually it is external as in wiring or sensors etc.
Did you try checking the BCM plug with battery disconnected also?
Are there any other error codes and what diagnostic tool are you using?
Are you able to read common rail fuel pressure when cranking?
No other error/warning lights on?
Where is this please? Have unplugged and replugged the ECU
Snapon zeus up to date, it clears and they come back, each code description is “short circuit to ground” this is not a component issues but wiring i’m just wondering is there a weak spot somewhere on vehicle, is the BCM under bonnet to the left holding many fuses? Thats ive not unplugged but checked earth to battery
I am not suggesting buying this :-eBay item number:326227555943 But this is described as the BCM on a Peugeot Expert which is basically your Scudo I believe.
In all honesty I was expecting that to just be a fuse box as I have fitted a BCM on another vehicle and it looked more like a slightly smaller engine ECU.
I have used my friends Snap On Zeus for other vehicles, doesn't it have a location section for modules?
Don't know if any help, but these photos are from my handbook on the 2010 Scudo 2.0 LWB fuseboxes , saying what does, what so may help identify. The engine compartment fuse box does appear to be what is described as BSI/BCM?
Rain water does seem to get around engine compartment a lot on these vehicles.
In all honesty I was expecting that to just be a fuse box as I have fitted a BCM on another vehicle and it looked more like a slightly smaller engine ECU.
I have used my friends Snap On Zeus for other vehicles, doesn't it have a location section for modules?
Don't know if any help, but these photos are from my handbook on the 2010 Scudo 2.0 LWB fuseboxes , saying what does, what so may help identify. The engine compartment fuse box does appear to be what is described as BSI/BCM?
Rain water does seem to get around engine compartment a lot on these vehicles.
Attachments
Find the additive pump and follow the wiring.
Find the lamda sensor and follow the wiring.
etc.
They'll likely all have a common +ve wire which is broken and shorting to earth.
Find the lamda sensor and follow the wiring.
etc.
They'll likely all have a common +ve wire which is broken and shorting to earth.
It’s strange they all head back to BCM. I will try follow, i will also inspect BCM if its the one left of the engine under water bottle
What is +ve wire, ive looked and cannot see any breaks, week before this happened, the horn came on while driving and wouldn’t go off, now the horn doesn’t work, just wondering where else to look, all fuses in every location are good
I'm struggling for ideas, take some pictures. The fusebox / bcm has been suggested as a problem area so maybe start there.
Had the BCM out, no problems, no fuses dead! checked earth from battery to engine in different areas, all good!
After horn came on, what did you do to stop it , or did something short or blow a fuse so it cut out? I assume it was the normal horn and not the alarm one.
It does indicate a wiring or corrosion issue there.
When you used the Snap On Zeus, did it give a wiring circuit diagram of the suspect area, I know the Autodata program can give some help in that direction.
Also as I mentioned previously as yours is the Citroen/Peugeot 1560cc engine I believe then see if any clues in their variants of your vehicle.
Mines the 1560 engine yes, horn went off on its own, not alarm, main horn, will check if it works in an hour had battery on and off, no fuses have gone.
I didnt look at wiring on snap on only had it briefly, just wondered if there is an area on the loom where things have gone before, ie: next to exhaust
I didnt look at wiring on snap on only had it briefly, just wondered if there is an area on the loom where things have gone before, ie: next to exhaust
Is this the same van / problem, as in the thread below?
3 codes that i cant clear with diagnostic scanner | FIAT Scudo
3 codes that i cant clear with diagnostic scanner - anyone know what i should be looking at? first warning on dash was water in diesel fuel filter detected??? how is that possible?
www.fiatforum.com
Can you check with a Multimeter/voltmeter what voltage at battery posts then see if same across from battery terminals then from positive and engine/vehicle chassis etc. to see if there is a drop some where. If you have a good fully charged battery it should read around 12.5 volts between all those points.
In the old days you could sometimes start a car with 8 volts on the meter but modern ECU controlled systems can through a "hissy fit" if even 11 volts sometimes.
I am not aware of any wiring weak points apart from checking where earthing points for multiple connections, so check around battery area and ECU earthing points etc.
Just a thought if you have been driving this vehicle for some time before the issue, have there been any warning lights/error codes etc. come up before?
What I am thinking is, is it possible that a warning re the additive error code etc. was ignored and the computer has decided it will cause the STOP until the problem has been fixed, Fiats don't usually do this but in the past on Peugeots I have seen STOP warnings come up indicating dire consequences when it was down to something silly like a faulty coolant level sensor when the level was correct.
Yes
Ive had it 2 yrs fault free but the paf fluid ran out had to do a regen, all was fine but everyone now and the says pat fluid warning even though loads left. Thats all, up to this break down was fault, water in diesel filter, since changed filter.
When that happens the fluid has to be refilled, then a diagnostic tool used to activate the pump to get all the air out, then the Error codes deleted , then the DPF Regen has to be done successfully and finally delete any further Error codes before continuing.
It sounds a pain, but having similar on a 2012 Citroen C3 Picasso with the same 1560cc engine I have had to do that.
Mine had done 220+ K miles when I bought it and was chucking out choking white smoke after removing and cleaning the DPF and several other jobs I used my friends Snap On Zeus to tell the ECU it had a "new DPF" there was enough fluid at the time so that wasn't a problem. I ran it four four years then the DPF fluid got low so I replaced it and used the tool to clear the codes etc. and later again I gave it a birthday br replacing the DPF it's self
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