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There are GY\BU wires and coming from instrument illumination rhostat switch power is from headlamp switch (hot all time) to fuse box #3 fuse and exterior lamp failure monitoring unit.also has n40 instrument illumination control unit is a relay if I recall relay is locate behind instrument cluster with four wires also check your fuse #9 is power to the relay.
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MB STARS Master Guild Technician,17 years MB tech
14 years independent shop owner
Last edited by MB STARS; 08-20-2004 at 01:31 PM.
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