Jwfff23 Posted February 24, 2017 Share Posted February 24, 2017 I have an 04 silverado and the other night I lost every bit of backlighting on my dash..The HVAC controls, gauges,4wd buttons, headlight switch. My speedo and everything else work fine otherwise the cluster was replaced a year ago, my headlights still come on like normal,no burnt out bulbs anywhere, checked all the fuses inside and under the hood, replaced the whole headlight switch (I knew the dimmer sometimes goes bad) and still nothing, I've done everything I can think of up to taking the dash apart and tracing wires and wanted to see if anyone else up here had gone through this or knew of anything I'm forgetting to check before I trace all the wires Link to comment Share on other sites More sharing options...
Coby7 Posted February 24, 2017 Share Posted February 24, 2017 There's 9 bulbs for backlighting and they wouldn't all burn at the same time. But it does have a separate ground from the rest of the cluster. Let me find the connector end view pin out for you. ''A11'' is the positive feed and either ''A12 or B12'' is the the ground. Link to comment Share on other sites More sharing options...
Jwfff23 Posted February 25, 2017 Author Share Posted February 25, 2017 But would that also effect the rest of the lights hvac, 4wd indicator, etc? Link to comment Share on other sites More sharing options...
Coby7 Posted February 25, 2017 Share Posted February 25, 2017 No, I thought you said those all worked. Link to comment Share on other sites More sharing options...
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