Inside gauge lights gradually dim.

sdnysdny Posts: 8
edited November 2019 in Toyota
I have a 95 camry that the inside gauge lights gradually dim until they are all out. If the lights are off for about an hour they will come on bright and gradually dim again. What could be wrong.

Comments

  • PF_FlyerPF_Flyer Pennsylvania Furnace, PAPosts: 9,403
    Electrical gremlins are always tricky to pin down. Your lights dimming could be a sign that your alternator is going south.
  • sdnysdny Posts: 8

    it is just the inside gauge lights, btw i have new battery
  • sdnysdny Posts: 8
    also the headlights are normal
  • thecardoc3thecardoc3 Posts: 5,422
    The power for the dash lamps comes from the 15amp oparking light fuse. If the parking lamps are "normal" while the problem is occurring, then testing should start at the dimmer (rheostat) and ground circuit (G200) in the Left Hand kick panel.
  • sdnysdny Posts: 8
    I will check to see if the parking lights are normal when this happens. Thanks
  • sdnysdny Posts: 8
    checked the parking lights they are working fine when this happens
  • thecardoc3thecardoc3 Posts: 5,422
    Then you have your starting point with the dimmer and the instrument panel ground. Get a schematic, and be ready to test when you make the problem occur again. Remember that all of the testing should be done while the issue is present.
  • sdnysdny Posts: 8
    strange thing happened tonight, the lights were going on and off-hey would stay on for about 5 minutes then go off then repeat.
  • thecardoc3thecardoc3 Posts: 5,422
    Just the dash lights, not the parking lights, right?
  • sdnysdny Posts: 8
    right just the dash lights
  • thecardoc3thecardoc3 Posts: 5,422
    Then the problem is just in the dash light circuit, which includes the dimmer rheostat. Do you have a schematic available and do you know how to do voltage drop testing?
  • sdnysdny Posts: 8
    no i don't have a schematic nor do i know how to do voltage drop testing
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