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1979 Interior light problem

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Old Jan 25, 2016 | 11:22 PM
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Default 1979 Interior light problem
1979 Corvette interior lights will work off the headlight switch if you turn them on. They will not work if either door is opened? Any ideas???
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Old Jan 26, 2016 | 01:36 PM
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did you check the two door switches if the wires are broken/ disconnected?
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Old Jan 26, 2016 | 04:23 PM
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Originally Posted by MelWff
did you check the two door switches if the wires are broken/ disconnected?
Yes I took them out and cleaned all the contact points. Didn't see any broken wires.
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Old Jan 26, 2016 | 06:31 PM
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Originally Posted by Corvette ED
Yes I took them out and cleaned all the contact points. Didn't see any broken wires.
If the switches are getting power it's a ground issue I'm guessing.
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Old Jan 27, 2016 | 10:59 AM
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did you use a voltmeter or test light to test for power at the door switches?
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Old Jan 27, 2016 | 11:14 PM
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Originally Posted by Corvette ED
1979 Corvette interior lights will work off the headlight switch if you turn them on. They will not work if either door is opened? Any ideas???
The bulbs are hot.. waiting for ground.. The ground is supplied by A) the headlamp switch when you turn it.. or B) The door jamb switch when it makes contact.



Or you could have a timer issue... here is a trace schematic of the entire circuit.



Last edited by Willcox Corvette; Jan 27, 2016 at 11:14 PM.
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Old Jan 31, 2016 | 12:48 PM
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Originally Posted by Willcox Corvette
The bulbs are hot.. waiting for ground.. The ground is supplied by A) the headlamp switch when you turn it.. or B) The door jamb switch when it makes contact.



Or you could have a timer issue... here is a trace schematic of the entire circuit.



The glove box light and lighter also do not work? I installed a new lighter assy when I had the console apart? Could the timer be the problem?
Last edited by Corvette ED; Jan 31, 2016 at 12:49 PM.
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Old Feb 1, 2016 | 12:43 PM
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I found the problem the timer was bad. Thank you to everybody who helped
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Old Feb 2, 2016 | 11:43 PM
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Originally Posted by Corvette ED
I found the problem the timer was bad. Thank you to everybody who helped
Good deal.. I was going to message you from your last post and saw this answer so I'm glad you figured it out. One reason we made the timer is that the fail... our timer board is updated a bit from the original and ours is fused to prevent any type of melt down should one occur.

Willcox
https://willcoxcorvette.com/corvette...er-board-78-82

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