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S40 / V40 '96-'04 General Forum for the Volvo S40 and V40 (Classic) Series from 1995-2004. |
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S40 front fog lights not workingViews : 853 Replies : 4Users Viewing This Thread : |
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Mar 25th, 2019, 11:24 | #1 |
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S40 front fog lights not working
Phase 2 Volvo S40 (2002), has the winter pack so the fog lights are original equipment.
The dash warning light works for the front fogs (as does the rear, and the rear fogs themselves work fine), and having looked at the wiring diagram in the Haynes book, suggests that a likely break would be somewhere between the fog light control module and where the wire splits to reach each individual light. As they have separate earth points I'd discounted this as it seems unlikely both would be poor. Are there any usual bugbears that cause these to fail, before I start taking everything to bits? And am I right in thinking the module is somewhere that's difficult to access behind the dash? Thanks in advance
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Present: 2002 C70 2.0T, 2003 Saab 9-5 3.0 V6 TiD Past: 2002 S40 1.9D, 2002 S40 2.0T, 2004 S40 1.8, 2002 & 2004 V40 1.9D, 2006 Saab 9-5 2.3t Various other French and Italian boxes |
Mar 25th, 2019, 12:58 | #2 |
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https://www.volvoforums.org.uk/showt...=67584&page=35
Post #345 and #346 may be of use to you. The relay on the CEM may be the cause of your issue. I had to replace one of the relays for my dipped beam headlight, it was an intermittent fault and I could get the light to work by giving the CEM itself a tap to make the relay switch. Hope this is of use to you!
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Phase 2 1.9tdi V40 |
Mar 25th, 2019, 17:10 | #3 | |
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Quote:
Will report back soon...
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Present: 2002 C70 2.0T, 2003 Saab 9-5 3.0 V6 TiD Past: 2002 S40 1.9D, 2002 S40 2.0T, 2004 S40 1.8, 2002 & 2004 V40 1.9D, 2006 Saab 9-5 2.3t Various other French and Italian boxes |
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Mar 25th, 2019, 18:29 | #4 |
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Is it so inconceivable that both bulbs may be blown? it can happen, when I bought my SE both brake light bulbs were blown.
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Mar 25th, 2019, 19:05 | #5 |
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I have known it happen once actually, we had a Mercedes at work (bus), where the driver had lost all his headlights, our sparky had every panel out and every fuse, relay, ECU resets, you name it, and it was two bulbs had blown by coincidence at the same time... needless to say he was the subject of much abuse that day!
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Present: 2002 C70 2.0T, 2003 Saab 9-5 3.0 V6 TiD Past: 2002 S40 1.9D, 2002 S40 2.0T, 2004 S40 1.8, 2002 & 2004 V40 1.9D, 2006 Saab 9-5 2.3t Various other French and Italian boxes |
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