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Instrument & Control Panel Light failure w fog high-beam indicator on 900 1994

posted by  dinomartino on  Sun May 29 14:51 CST 2011
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last visit: Fri Oct 24 04:43 CST 2014
[RELATED]

Fog indicator is for rear fogs also, which were standard. By 1994, it was one side only.

Given apparent temperature sensitivity, a bad solder joint somewhere or a failed trace on the circuit "board" are highly likely. The printed circuit board is HIGHLY vulnerable to deteriorating traces where the thin plastic sheet wraps around the bottom of the cluster. MOST of those traces are ground traces, IIRC.

You need to pull the cluster and METHODICALLY work your way thru it with an ohm-meter, checking for continuity between the instruments/warning lights and the connector contacts on the back of the board. I was never able to visually locate broken traces the way most people can see failing solder joints.

Good luck.

john
--
1989 245 233K / 1993 945 127K






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