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Discussion Starter #1
Hello !

I have EGR problem, 2007,90ps ,dci, can someone give me a circuit diagram for EGR-ECU, how can i test for a wire break?
Fault code : P0409 and P0488
I removed the EGR valve ,and for 12v it is working fine the valve.(pinout 1-5 )

The electrical resistance pinout :
6-2 4,9Kohm
6-4 1,35Kohm
4-2 5,1 Kohm

I read that: the ECU on pinout -4- give 5 volt,,but my car zero volt the pin ECU give on pin -6- 4,9 volt .

thanks !!!!

Technical Supremo, Platinum Member
1,665 Posts
Sorry, don't think anyone has that information and we can't publish the original wiring diagrams for copyright reasons. If you have access to Autodata at a friendly garage it should show the details you need, there is a £10 trial Autodata Technical Vehicle Data | Autodata | UK
The other way would be to buy the wiring diagrams on Ebay
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