C5 Mk1 2.2HDI 2001 Diesel Additive ECU

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aspire_helen
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C5 Mk1 2.2HDI 2001 Diesel Additive ECU

Post by aspire_helen »

Can someone help me locate the "Particle Filter Electronic Control box" on the car . Mine is Citroen part number 1525AS for DPX42. See example photo.
My research shows that there are 3 variants under the same part ref 9643360280, namely EAS100, EAS100.01 and EAS100.02. Do these refer to software standards perhaps? And are they inter-changeable? I have read that early ECUs were problematic.
1525AS additive ECU.jpg
Many thanks
wheeler
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Re: C5 Mk1 2.2HDI 2001 Diesel Additive ECU

Post by wheeler »

Its bolted to the inner sill at the rear on the same side as the fuel filler flap. Open the rear door on the filler flap side & pull up the plastic trim that hooks under the door seal, pull the carpet back & you should see it in there.

The FAP ECU's were absolutely fine...... until you try to reset the additive counter when you re fill the additive.
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GiveMeABreak
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Re: C5 Mk1 2.2HDI 2001 Diesel Additive ECU

Post by GiveMeABreak »

Not a lot of detail. It is component 1282, and seems to be under the front passenger seat somewhere.... Shown in diagram 'G', then look for 'G' on the main vehicle diagram.
Additive ECU Location.PNG
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Marc
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Re: C5 Mk1 2.2HDI 2001 Diesel Additive ECU

Post by aspire_helen »

Thanks Wheeler, just where you said. It turns out to be EAS100.01 9646216380, but I know it is not the 2001 original. A Citroen dealer fitted the current one in August 2007 when the additive pump began running continuously. I have my concerns that it has been right since, but that's another post for the near future!

It would appear a mouse had been busy under trim :-D , right next to the ECU, with significantly nibbled foam rubber insulation and a collection of dozens of sycamore seeds. How is this even possible???! The wiring appeared untouched. See photo - the red part is the ECU connector.
Attachments
Additive ECU - Signs of mice.JPG