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Intermittant Headlight Power - RH Side Only S80 2005

posted by  Chris Mullet on  Tue Feb 3 02:21 CST 2009
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last visit: Fri Oct 24 09:08 CST 2014
[RELATED]

Your research is to be commended - but the message hurts. Although there was no obvious water intrusion, I wasn't able to remove the CEM, so I don't know for sure.

I'm thinking that in order to eliminate the headlight harness itself as a possible point of failure, I propose the following test:

Pull both LH and RH low beam fuses. Cross jump the fuse sockets with temporary jumpers so that I'm feeding the RH harness and light with the LH circuit, and vise versa. Then if the RH light is still the one to fail I'll know the failure is somewhere between the fuse and light. If the failure moves to the LH side then I know the problem is upstream from the fuse (like in the CEM/relay, etc.).

Your work-around fix is interesting, although my limited electro-knowledge would make it some hand-holding necessary.

I'll let you know what I learn.






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