fault code P2425

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KennyW
Donor 2020
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fault code P2425

Post by KennyW »

Hi All,

When clearing some faults the above appeared as a permanent fault

P2425

Control of the bypass of the EGR exchanger

Open circuit.

Could this be the control solenoid valve ?

Kenny

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GiveMeABreak
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Re: fault code P2425

Post by GiveMeABreak »

P2425 on this engine ECU is the control of the EGR Exchanger Bypass being 'open circuit' for 2 seconds Kenny.

It may disappear after 5 minutes but only when the engine is hot. The fault will cause the deactivation of the initialisation of the EGR valve.

Possible causes: Electrical harness, Connectors, EGR exchanger bypass control solenoid valve, EGR exchanger bypass, Fuse.

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KennyW
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Re: fault code P2425

Post by KennyW »

Thanks Marc,

I shall check everything over.

Kenny

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KennyW
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Re: fault code P2425

Post by KennyW »

Here is a diagram done for the Vacuum system involving the 3 control solenoids relating to C5 X7 post 12291
Scan_20200605.jpg
Kenny

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KennyW
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Re: fault code P2425

Post by KennyW »

Well changed the solenoid and cleared fault.

I've noticed the car is a little bit more responsive since the change and the fault has not returned.

Hooray one thing less thing to fix but back to the the wiring to and from the suspension ecu ( another thread).

Kenny