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volvo 2.4t estate

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Old Mar 20th, 2009, 16:21   #31
robs 440
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Originally Posted by Chris_Rogers View Post
Hmm, it may not be a perfect fit but the fault code is for an electrical connection to the LU solenoid.

If the code was for 'incorrect gear ratio' or similar I'd think they have a point.

You can check the electrical circuit resistance to the LU solenoid from the wiring conector by the air filter in a few minutes using the wiring diagrams and a multimeter.
You could even power the solenoid from a battery and listen for clicking in the box. This does not require opening the gearbox.

If these things test out OK I'd check the wiring from the ECU to the gearbox.

I would think some DIY time spent investigating would be worthwhile.
ok, ive identified the wire to the solenoid, on the mulit meter i conect the probe to the wire, does the other probe go to earth, i dont know anything about multimeters?? got a digital one? i know i have to measure the resistance from the solonoid, is this with thr ignition on, power to the solonoid??

Last edited by robs 440; Mar 20th, 2009 at 16:37.
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Old Mar 20th, 2009, 19:55   #32
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Ignition off.

Refering to the wiring diagram, which i assume you have.

The LU solenoid is connected to terminals

A23 Brown wire & A26 Yellow/white.
These terminals are in the connector block 8/37a on top of the gearbox.

You need to separate the terminal block (unplug the block from the loom)
and using the meter on ohms measure the resistance between the two terminals, this should be 5.6 ohms.
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Old Mar 24th, 2009, 16:53   #33
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Originally Posted by Chris_Rogers View Post
Ignition off.

Refering to the wiring diagram, which i assume you have.

The LU solenoid is connected to terminals

A23 Brown wire & A26 Yellow/white.
These terminals are in the connector block 8/37a on top of the gearbox.

You need to separate the terminal block (unplug the block from the loom)
and using the meter on ohms measure the resistance between the two terminals, this should be 5.6 ohms.
well, well, i managed to take the front gearbox cover off today, and gess what?????? the wire to the LU solonoid wasent connected. it was on but not making contact, pushed it on untill it locked on firmly. now got ot put it all back. ill have to drop the subframe to get the cover on properly, with new sealing compound etc. big thanks to chris, hopefully its done, cheap fix, will keep you updated soon. the codes i had were LU solonoid, and faulty signal.
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Old Mar 24th, 2009, 19:19   #34
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Check the circuit resistance from the terminal block before you put it back together to and make sure you have cured the open circuit, you don't want to have to go in the valve box again if you can help it.

Good luck!
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Old Mar 29th, 2009, 18:09   #35
robs 440
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well, its fixed. it was that wire on solonoid valve not conected. drives lovely, all gears are so smoth and kickdown, well, its a bloody rocket. coming from a 850 2.6 10v estate to this, is mind blowing. this car on kickdown is so quick. ran it for about a hour, checked fault codes again, nothing, thanks again chris, and others.
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Old Mar 29th, 2009, 22:54   #36
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Well done, looks like you've bagged yourself a bargin.
Sometimes the dealers don't know it all!
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Old Apr 5th, 2009, 19:31   #37
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This has been a great topic and very interesting to me because I too am experiencing problems with my 2.4 T S60 gearbox I will be testing the resistance to the solenoid tomorrow but does anyone have a wiring diagram or a link to one.
Very many thanks guys.
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Old Apr 5th, 2009, 22:31   #38
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This has been a great topic and very interesting to me because I too am experiencing problems with my 2.4 T S60 gearbox I will be testing the resistance to the solenoid tomorrow but does anyone have a wiring diagram or a link to one.
Very many thanks guys.
hi buzz, best tool to get is the code reader from nordic. brilliant, gives you the same code readings as from volvo. mine came up as lock up solonoid fault, and faulty signal. only way forward really.
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Old Apr 5th, 2009, 22:38   #39
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by the way, the brown and green wire is the lock up solonoid wire.
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Old Apr 6th, 2009, 18:30   #40
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Quote:
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This has been a great topic and very interesting to me because I too am experiencing problems with my 2.4 T S60 gearbox I will be testing the resistance to the solenoid tomorrow but does anyone have a wiring diagram or a link to one.
Very many thanks guys.
See reply 20 on this thread, work back to the S60 page on the website.
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