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650b electric fan signal missing

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Guesten
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Year and Model: 2005 Volvo v70
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650b electric fan signal missing

Post by Guesten » Sun Nov 24, 2019 10:42 pm

Hello! I have a electric fan that is not working and have never done! I have checked the 60a fuse under electric fuse box in the engine bay, i have voltage in the thick cables that go to the fan. I have tried and hooked up another used fan and its not working either.

I have autocom diagnostic so i can activate the fan manualy. It works on other v70 but not mine.

What should i check???



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RickHaleParker
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Re: 650b electric fan signal missing

Post by RickHaleParker » Mon Nov 25, 2019 3:26 am

Check ground 31/2. It grounds the Fan Control Module and the fan motor.
31-2.PNG
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Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.

Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.

Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0,
Plant Torslanda Sweden.
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1997 S90, B6304S, AW30-42, Bosch Motronic 4.4 - Sold

Guesten
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Year and Model: 2005 Volvo v70
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Guesten

Re: 650b electric fan signal missing

Post by Guesten » Mon Nov 25, 2019 11:42 am

RickHaleParker wrote:
Mon Nov 25, 2019 3:26 am
Check ground 31/2. It grounds the Fan Control Module and the fan motor.

31-2.PNG
Hello sir and thanks for your reply! I unbolt the 3 wires, sanded all contact areas and bolted them back again, not any good news. Its the same:( more ideas? And thanks from sweden!!



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