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1989 765T Headlight Relay question 700 1989

posted by  DMANPDI on  Sat Aug 6 16:10 CST 2005
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last visit: Sun Nov 11 18:36 CST 2007
[RELATED]

I also have a 1989 760 wagon - my pride and joy. Although you seem to have covered the obvious problem areas of grounding, relay and switch, you didn't mention anything about the FUSES ! Fuse #3 and #4 are LH and RH Upper Beams. Fuses #7 and #8 are for LH and RH Low Beams. On my fuse panel, there seems to be a discrepancy with fuse #7 which is listed as only 10A and all the other headlight fuses (3,4,6) as 15A.

I would suggest that you remove all these fuses and be sure the contacts are perfectly clean and bright. You might just buy new ones since they are not very expensive. What you don't want to see is melted or deformed fuse sockets. I have seen this on 740 fuse blocks.

And of course it could also be the wiring although a 1989 wouldn't have the same biodegradable insulation as in the mid 80's often had.





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