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700/900 Series General Forum for the Volvo 740, 760, 780, 940, 960 & S/V90 cars |
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940 headlight wiring upgradeViews : 907 Replies : 8Users Viewing This Thread : |
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#1 |
Master Member
Last Online: Jun 16th, 2024 23:07
Join Date: Mar 2017
Location: Burgess Hill
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I need to upgrade the wiring to my headlights on my 940 Celebration using additional relays fed direct from the battery.
My one concern is the dim/dip circuit which was still an OEM fitment still on my 1998 model. How would this circuit be affected by interrupting the feed to the headlights via the relay? Would I need a diode? Anyone else had to do this ?? |
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#2 |
VOC Member
Last Online: Today 16:08
Join Date: Feb 2008
Location: Gloucester
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The dim/dip lights on a late model 940 are automatically turned on when the headlight switch is in the "off" position via the blue relay "M", second from right, front row of the relay tray.
I guess what you do to manage this depends on whether you want the dim/dip function still to work following your mod and where in the circuit you propose to install your new relays. Also, whether you want the sidelights to come on without the dim/dip headlights (questionable legality) or disable all the lights coming on unless you switch them on. You can remove fuse 25 to disable daylight running lights on some models. |
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#3 | |
Junior Member
Last Online: Jun 12th, 2024 11:08
Join Date: Aug 2022
Location: Cheshire
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![]() Quote:
https://www.ebay.co.uk/itm/166491397033 |
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#4 |
Master Member
Last Online: Jun 16th, 2024 23:07
Join Date: Mar 2017
Location: Burgess Hill
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Looks the biz.If it's a 5 pin relay maybe that solves my dim/dip circuit problem....?
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#5 |
Junior Member
Last Online: Jun 12th, 2024 11:08
Join Date: Aug 2022
Location: Cheshire
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#7 |
Junior Member
Last Online: Jun 12th, 2024 11:08
Join Date: Aug 2022
Location: Cheshire
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#8 |
Junior Member
Last Online: Jun 19th, 2024 21:36
Join Date: Oct 2023
Location: Lincoln
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Can you not just install LED replacements.
This is what I have done and the beam pattern is perfect. But loads brighter and a much whiter light. |
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#9 |
Master Member
Last Online: Jun 16th, 2024 23:07
Join Date: Mar 2017
Location: Burgess Hill
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I think you are probably right,Swanny in that the original three pin socket will just be operating the relay,rather than the bulb directly. Looks great to have a ready assembled kit...
and the only way to try is to buy. |
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