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Fiat Dablo 1.9 JTD 2006 - MIL on, code P0481 2nd speed cooling fan - Fixed #

Posted by Mike Hicks on January 19, 2010, 8:13 pm

Year of Manufacture *: 2006
Engine Code or CC *: 1.9

fiat doblo 1.9 jtd 06 plate van.
came in with mill light on, read fault codes,
p0481 2nd speed cooling fan.
no performance above 3000rpm.
fault code will not clear down,
any ideas would be great
thanks mike

Re: fiat doblo 1.9jtd p0481 loss of power above 3000rpm

Posted by Kevin Apps <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT2589' width='330' height='300' border=0 style='border:none;'> on January 20, 2010, 12:01 am, in reply to "fiat doblo 1.9jtd p0481 loss of power above 3000rpm"
Kevin Apps

Mike
What sacnner, don,t think that code discription will affect power, live data would help solve this !!
MAF data being the first to post (well thats what i think)
Kev.

Re: fiat doblo 1.9jtd p0481 loss of power above 3000rpm

Posted by Piotr Sokolowski <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT1848' width='330' height='300' border=0 style='border:none;'> on January 20, 2010, 6:24 pm, in reply to "Re: fiat doblo 1.9jtd p0481 loss of power above 3000rpm"

p0481 is for radiator fan 1 or 2 .Cheeck fuses first , do you have + on the plug ,relay or wiring.

Link: www,pandpauto.eu

Re: fiat doblo 1.9jtd p0481 loss of power above 3000rpm

Posted by Glyn Morgan <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT2543' width='330' height='300' border=0 style='border:none;'> on January 20, 2010, 6:30 pm, in reply to "Re: fiat doblo 1.9jtd p0481 loss of power above 3000rpm"
Glyn Morgan

Hi Mike,

As Kevin says MAF sensors are common on these.

Can you scope the MAF ? I have seen stuck EGR valves give poor performance on these, without logging an EGR code.

Regards Glyn

Re: Fiat Dablo 1.9 JTD 2006 - MIL on, code P0481 2nd speed cooling fan, no performance over 3000 rpm #

Posted by mick matthews <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT5280' width='330' height='300' border=0 style='border:none;'> on January 20, 2010, 6:53 pm, in reply to "Fiat Dablo 1.9 JTD 2006 - MIL on, code P0481 2nd speed cooling fan, no performance over 3000 rpm #"
Mick Matthews

Just done one of these with the same fault,check
black & gray wire from fan relay to ecu usually
corrodes just before it enters ecu

hth mick

Re: Fiat Dablo 1.9 JTD 2006 - MIL on, code P0481 2nd speed cooling fan, no performance over 3000 rpm #

Posted by mike hicks <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT1485' width='330' height='300' border=0 style='border:none;'> on January 21, 2010, 5:05 pm, in reply to "Re: Fiat Dablo 1.9 JTD 2006 - MIL on, code P0481 2nd speed cooling fan, no performance over 3000 rpm #"
Mike Hicks

still no joy,have checked wiring from relay plate to ecu no corrosion check all turbo pipes with smoke machine no leaks,air flow meter ok stripped and cleaned egr,cant get live data soon as i go over 10 mph stops reading,going to try cd reader on road test tomorrow but would still like any feed back van only done 27,000 miles!feel i have 2 faults 1 being performance other mil light saying high speed fan cuircuit,but could it be because of fan fault car in limp home!

Re: Fiat Dablo 1.9 JTD 2006 - MIL on, code P0481 2nd speed cooling fan, no performance over 3000 rpm

Posted by Piotr Sokolowski <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT1848' width='330' height='300' border=0 style='border:none;'> on January 21, 2010, 6:21 pm, in reply to "Re: Fiat Dablo 1.9 JTD 2006 - MIL on, code P0481 2nd speed cooling fan, no performance over 3000 rpm #"

What I would do : I would eliminate problem with fan . Then you would know is it in limp mode because fan.Did you check fan on it's own?

Link: www,pandpauto.eu

Re: Fiat Dablo 1.9 JTD 2006 - MIL on, code P0481 2nd speed cooling fan, no performance over 3000 rpm #

Posted by Mick Matthews on January 21, 2010, 6:43 pm, in reply to "Re: Fiat Dablo 1.9 JTD 2006 - MIL on, code P0481 2nd speed cooling fan, no performance over 3000 rpm #"
Message modified by board administrator January 22, 2010, 1:58 pm

Mike
Ecu needs to see fan circuit ignition supply

from fan relay, if it cant see it the mil is on and it goes into limp,check very carefully from the connector under the fuse box to the connector on the ecu, the wire fails internally
sometimes difficult to detect.You may have to splice in another cable

mick

Re: Fiat Dablo 1.9 JTD 2006 - MIL on, code P0481 2nd speed cooling fan, no performance over 3000 rpm #

Posted by Mike Hicks on January 22, 2010, 8:24 am, in reply to "Re: Fiat Dablo 1.9 JTD 2006 - MIL on, code P0481 2nd speed cooling fan, no performance over 3000 rpm #"
Message modified by board administrator January 22, 2010, 1:58 pm

I DONT HAVE A WIRING DIAGRAM IS IT THE BLACK AD GREY DO YOU KNOW

Fixed #

Posted by Mike Hicks on January 27, 2010, 12:47 pm, in reply to "Fiat Dablo 1.9 JTD 2006 - MIL on, code P0481 2nd speed cooling fan, no performance over 3000 rpm #"
Message modified by board administrator January 27, 2010, 3:28 pm

Fixed

Broken black and grey wire 5mm from ECU multi plug, light out and performance back to normal

Mike

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