PA24A4 code: what does it mean?

Fred

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Aug 21, 2012, 12:42:33 PM8/21/12

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Hi,

I have a 2010, 2.0L diesel, Mondeo. Today a big sign came on the
display saying "engine malfunction". Some time ago, I bought a cheap
elm (?) reader from ebay and used it to read the code; it is PA24A.

I tried to find out what this means using google but it appears that
codes are supposed to begin P0 or P1; I cannot find any codes
beginning P2. One web site suggested P24xx to 29xx are "SAE Reserved"
but what does that mean?

The car is under warranty, so the dealer should look at it free of
charge I am hoping. The car seems to drive perfectly. But I wonder
what it is; do you know?

TIA

Mrcheerful

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Aug 21, 2012, 1:28:45 PM8/21/12

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do you mean P240A? (nearest I can find to the one you say)
if so it is evap leak detection pump heater open circuit.

Fred

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Aug 22, 2012, 7:57:02 AM8/22/12

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On Tue, 21 Aug 2012 18:28:45 +0100, "Mrcheerful"
<g.odon...@yahoo.co.uk> wrote:

>do you mean P240A? (nearest I can find to the one you say)
>if so it is evap leak detection pump heater open circuit.

Hi,

Sorry, I typed it wrong. It was P24A4

Mrcheerful

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Aug 22, 2012, 11:17:25 AM8/22/12

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that code does not appear in the list I have, but generally they go in
groups, and p24a1 and 2 are to do with the diesel particulate regeneration
system. good luck

GB

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Aug 22, 2012, 5:06:51 PM8/22/12

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Out of interest, surely a 2010 car is under warranty?

Ormolu

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Aug 22, 2012, 7:19:26 PM8/22/12

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The OP has stated that it is in his initial post, and is probably carrying
out his own investigation on the fault/code before he approaches the
dealer - very sensible with the way some dealers respond to warranty claims.

Ormolu

David

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Aug 23, 2012, 5:08:13 AM8/23/12

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I recently had a similar format fault code on our 2011 BMW 120i.

Looking all over the web pointed me in the direction of coolant
temperature. Possibly sensor, or thermostat etc...

When at the dealer, the service adviser even tried to look up the code I
gave him on Google, and found the same. The fault actually was a failed
NOx sensor.
This petrol engine runs very lean and produces high NOx as a result, so
it has a NOx Converter as well as a Catalytic convertor to meet EU5
emission limits.

The service adviser stated that garages were always ringing to ask what
various codes depicted, and he had to tell them that the codes they got
from their scanners meant nothing to the dealer workshop as the dealers'
equipment used a different decoding algorithm, and would give different
codes on their system...

Brilliant, this must be intended to retain work within the dealership
network.

What about the Euro Bloc Exemption legislation, I thought that that was
intended to prevent this ?????

David

Fred

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Aug 31, 2012, 3:40:17 AM8/31/12

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On Wed, 22 Aug 2012 16:17:25 +0100, "Mrcheerful"
<g.odon...@yahoo.co.uk> wrote:

> p24a1 and 2 are to do with the diesel particulate regeneration
>system.

Hi,

The dealer was unable to look at the car before the bank holiday, so
they have only just had a look at it. Here's an update.

The error appeared on two separate days but the day it went to the
dealer it was fine! The dealer's computer did not find anything wrong
so they say they did "symptom diagnosis". I'm puzzled by this because
the car drove perfectly so there were no symptoms to diagnose!

What is the diesel particle regeneration system you spoke about?

They said they replaced a vapouriser pipe, whatever one of those is,
but when I asked more, it seems this was not faulty but they had to
break it to remove it to get to some component underneath that they
wanted to check.

They say they have reset the computer and to go back if there are any
problems. Time will tell!

Fred

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Aug 31, 2012, 3:41:53 AM8/31/12

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On Thu, 23 Aug 2012 00:19:26 +0100, "Ormolu" <o...@invalid.com> wrote:

>
>The OP has stated that it is in his initial post, and is probably carrying
>out his own investigation on the fault/code before he approaches the
>dealer - very sensible with the way some dealers respond to warranty claims.

Hi, OP here. I just wanted to know what it might be so that I had some
idea whether this was a minor fault or something catastrophic and
whether I would be without a car for a few days or just a few hours,
and so that when the dealer spoke to me I understood some of what they
were saying.

Chris Whelan

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Aug 31, 2012, 4:03:13 AM8/31/12

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On Fri, 31 Aug 2012 08:40:17 +0100, Fred wrote:

[...]

> The error appeared on two separate days but the day it went to the
> dealer it was fine! The dealer's computer did not find anything wrong so
> they say they did "symptom diagnosis". I'm puzzled by this because the
> car drove perfectly so there were no symptoms to diagnose!

The fault *may* still have been in the ECU memory.

> What is the diesel particle regeneration system you spoke about?

http://en.wikipedia.org/wiki/Diesel_particulate_filter

Chris

--
Remove prejudice to reply.

marko....@gmail.com

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Sep 4, 2012, 1:25:02 PM9/4/12

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Hi!

My Honda CR-V (2007 2,2 i-CTDi) allso give faulty code P24A4. Car work normally, but sometimes cruiser will drop off.
I have HDS (Honda Diagnostic System), and it will not give any explanation for that.

Anyone solve this problem, or have any ideas to that ?

regards,
Marko

Mrcheerful

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Sep 6, 2012, 1:45:40 PM9/6/12

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same as for the mondeo, the previous three codes (P24A0, P24A1 and P24A2)
all relate to the diesel particulate regeneration system, so it is
reasonable to assume that P24A4 is also a code for the same bit. (there are
no other codes in the P24An range at all)