Lou Posted April 23, 2022 Share Posted April 23, 2022 My least favorite part of classic cars (for lack of knowledge) is electrical.: FYI, fuses are all good. Symptom: No instrument panel lights. ( I have dome light, headlights, turn signals) Problem: Took dash pad off and found the following. Which is connected to this: Which is semi-connected to this by black wire with white stripe: And this was connected to whatever connection (same color wires and connection fits) is behind the radio that's not there: Where do I start? Quote Link to comment Share on other sites More sharing options...
1970mcss Posted April 23, 2022 Share Posted April 23, 2022 A wiring diagram would be a good place to start. I believe the yellow black and grey are foe the radio. The green and black maybe speakers. Should have nothing to do with the dash lights. Did you check the ground at the dash? Did the dash light ever work? 1 Quote Link to comment Share on other sites More sharing options...
Lou Posted April 23, 2022 Author Share Posted April 23, 2022 I did not check for ground at dash. I have wiring diagrams but thy might as well be in Portuguese. I guess it's about time to learn a new language.😒 Quote Link to comment Share on other sites More sharing options...
Scott S. Posted April 23, 2022 Share Posted April 23, 2022 Could be a disconnect at the light switch as well...... I recently replaced my dash lights with led, and found a few of the light sockets to be damaged. Add new ones, and now all my lights are working !!! Quote Link to comment Share on other sites More sharing options...
420ponies Posted April 23, 2022 Share Posted April 23, 2022 Did they work and just quit? It could be the light switch itself. On your switch ,on top of switch ,behind dash is a round top pin( knob) with a spring under it. Push that down and light switch knob will pull out from dash side.Then I take contact cleaner and spray into switch. Push light switch rod back in ( it will click) and turn knob left and right. Pull switch knob out to 1st stop, Dash lights should come on. It gets corrosion/ dust ,dirt , inside and doesn't get good contact in switch. Sometimes you can find the dome light doesn't come on with the door closed also. A sign not getting good contact in switch. Quote Link to comment Share on other sites More sharing options...
Lou Posted April 23, 2022 Author Share Posted April 23, 2022 Thanks. I'll give that a shot. Funny you mention the dome light..... I cleaned the door jamb switch and... viola! It now works. Will try the same with the headlight switch. Quote Link to comment Share on other sites More sharing options...
TheBMan Posted April 24, 2022 Share Posted April 24, 2022 On 4/23/2022 at 10:06 AM, 1970mcss said: A wiring diagram would be a good place to start. I believe the yellow black and grey are foe the radio. The green and black maybe speakers. Should have nothing to do with the dash lights. Did you check the ground at the dash? Did the dash light ever work? @Lou I hope one of these helps! Quote Link to comment Share on other sites More sharing options...
Lou Posted April 25, 2022 Author Share Posted April 25, 2022 They certainly will. Thank you. Quote Link to comment Share on other sites More sharing options...
Lou Posted April 25, 2022 Author Share Posted April 25, 2022 Holy crap, I actually fixed (maybe) something in the wiring. While working on the brakes I noticed the wire on switch on the combination valve had been pulled/chewed off. Spliced a new price of wire in temporarily and I have continuity. Still investigating the instrument panel issues but when I come across something and I'm confident, I have to fix it. 2 Quote Link to comment Share on other sites More sharing options...
1970mcss Posted April 25, 2022 Share Posted April 25, 2022 NIce, it's the small victories. Quote Link to comment Share on other sites More sharing options...
Lou Posted April 26, 2022 Author Share Posted April 26, 2022 Small victories, yes. But time to think big as long as I have people in the know........ From left to right: Headlight switch ground, gauge cluster connection, 2nd ground, clock connection..... Is it safe to reconnect battery to test these connections with a voltmeter and test light and how do I do it? Quote Link to comment Share on other sites More sharing options...
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