2003 S10 HEADLIGHTS AND 4X4 CONTROL AND TACH,TEMP GAUGE AND FUEL GAUGE ONLY COME ON IF YOU HOLD ACK ON DIMMER SWITCH?
ABOVE FUNCTIONS WOLD COME ON IF YOU HAD HEADLIGHT SWITCH IN ON POSITION BUT NOT IN DAYTIME MODE.NOW THEY ONLY COME ON IF IN ON POSITION AND HOLD BCK ON DIMMER SWITCH.
I think you're referring to the dash lighting? If that's the case, it sounds like you have a bad dimmer switch.
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