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Fiat 500 1.3 JTD 2008 - Code P0521 - Fixed #

Posted by Paul Howd on September 14, 2014, 12:52 pm

Year of Manufacture *: 08
Engine Size and Code *: 1.3 JTD
( Optional ) Scanner Used: X431

I am getting the above fault code.

(Launch actually says 0521 (9,23,5,21) )

Autodata suggests that this is a warning for oil pressure switch/sensor

However!

Coms using the Launch are flaky. I have checked the oil pressure with a gauge (OK) and tried replacing the oil pressure switch (The one on the top right of the engine) on the grounds that it is cheap and easy!

However the fault will not clear. (This "May" be a Launch issue of course. I did say that comms seemed flaky!)

Autodata is poor on this! Nought-o-data strikes again!

Is there another oil pressure sensor on the engine somewhere that may be an issue here??

(Also, has anybody used MultiECUScan on these vehicles?? Is it any good??)

Re: Fiat 500 1.3 JTD- P0521

Posted by aidan birley <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT2879' width='330' height='300' border=0 style='border:none;'> on September 14, 2014, 5:42 pm, in reply to "Fiat 500 1.3 JTD- P0521"
Aidan Birley

Hi

What is the actual fault ? What does EOBD show?

Cheers Aidan

Re: Fiat 500 1.3 JTD- P0521

Posted by Peter Keverne on September 14, 2014, 6:02 pm, in reply to "Fiat 500 1.3 JTD- P0521"
Edited by board administrator September 15, 2014, 2:32 pm

hi paul
yes have used multiecuscan, worth every penny, find it very good and yes does talk to fiat 500.

This suggestion might appear of the wall but could it be that a service light reset is required??

peter

Re: Fiat 500 1.3 JTD- P0521

Posted by Kevin Apps <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT2589' width='330' height='300' border=0 style='border:none;'> on September 14, 2014, 10:56 pm, in reply to "Re: Fiat 500 1.3 JTD- P0521"
Kevin Apps

Paul

Answer Aidan's question's and we can move on.

Kev.

Re: Fiat 500 1.3 JTD- P0521

Posted by paul howd <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT5151' width='330' height='300' border=0 style='border:none;'> on September 15, 2014, 8:43 am, in reply to "Re: Fiat 500 1.3 JTD- P0521"
Paul Howd

Like I said, Coms seemed flakey (On the one hand my launch and multiscan are a bit old (As is the software!) but on the other hand this is an 08 vehicle!)

The OBD2 did show an engine degradation code but not the 0521 one.

I expected the engine degradation one since the oil light was flashing but there is also an engine management light on (Which from reading the owners handbook suggests that there is more going on than just the old oil)

In any case My plan is to get the multiecuscan tool and report back on what I find with it.

The really frustrating thing is the lack of info on autodata! This is after all a six year old car! Hardly someghing that came out last month!)

Re: Fiat 500 1.3 JTD- P0521

Posted by aidan birley <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT2879' width='330' height='300' border=0 style='border:none;'> on September 15, 2014, 1:29 pm, in reply to "Re: Fiat 500 1.3 JTD- P0521"
Aidan Birley

Paul

>>> The really frustrating thing is the lack of info on autodata <<<

why dont you ring them and ask for the information you want? the help line is there to be used

Aidan

Re: Fiat 500 1.3 JTD- P0521

Posted by Shane gray <iframe src='https://members.boardhost.com/ukautotalk8/info/user=ukat3442' width='330' height='300' border=0 style='border:none;'> on September 15, 2014, 10:59 pm, in reply to "Re: Fiat 500 1.3 JTD- P0521"
Shane Gray

Paul,
Mutiecuscan is good, but has problems getting into clusters for service reset's on some models. Also purchase correct lead from gendan, cheap Chinese ones play up.
Shane

Re: Fiat 500 1.3 JTD- P0521

Posted by Paul Howd <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT5151' width='330' height='300' border=0 style='border:none;'> on September 16, 2014, 6:24 pm, in reply to "Re: Fiat 500 1.3 JTD- P0521"

Kind of tricky to get a wiring diagram down the phone!

(Especially if you are in a poor signal area! On another note, what non-on-line options will be available next year after Autodata goes on-line only?? )

Fixed #

Posted by Paul Howd on September 16, 2014, 6:37 pm, in reply to "Re: Fiat 500 1.3 JTD- P0521"
Edited by board administrator September 19, 2014, 2:52 pm

Multiecuscan connected and solved the issue. (I have got the Gendan multiplex plug which looks reasonably nicely made too!)

Turns out that P0521 is Fiat-speak for the oil service warning light so there were in-fact no other problems!

(Bit naughty of fiat making a generic OBD code into a fiat specific issue and then making a "service warning light" into a fault issue that requires specialist equipment to clear!. )

I somehow suspected this but wanted to know if there was another oil sensor on the engine other than the "Obvious" oil pressure one.

Anyway. All sorted now!

Re: Fix and Report!

Posted by Peter Keverne <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT2835' width='330' height='300' border=0 style='border:none;'> on September 17, 2014, 6:54 pm, in reply to "Fix and Report!"
Peter Keverne

hi paul
From reading your last post did you already have the multiecuscan, or have you just bought it?

And glad you got service light out

peter

Re: Fix and Report!

Posted by Paul Howd on September 17, 2014, 10:38 pm, in reply to "Re: Fix and Report!"
Edited by board administrator September 19, 2014, 2:53 pm

I purchased the Multiecuscan to deal with this issue since neither my Launch or Multiscan were able to deal with it. (My Upgrade/New-tool policy is to buy them when I need them!)

(I admit that my Launch/Multiscan subscriptions are out of date (And that the "Current" versions may have dealt with this), but both are still up to date for several years after this car was made! so the fact that they could not deal with a basic service function on a popular vehicle represents a Major flaw! Family issues have meant that I have almost ceased trading over the last couple of years so "Unnecessary" expenditure has had to be curtailed. How I might continue in the future is a different matter (See my post in the diagnostics section))

While my "First look" at Multiucuscan is very positive (The data streams are comprehensive and easy to understand) One thing that did puzzle me is that it took several goes to get the "Oil service" function to actually perform the reset.

(Eventually I ran the engine till it had warmed up a bit. Whether this helped or whether the fact that I deleted the fault code after performing the reset before starting the engine I do not know!)

HTH

Paul

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