Dashboard night light not working

Tiny
EVA CHIN
  • MEMBER
  • 2003 TOYOTA CAMRY
  • 4 CYL
  • AUTOMATIC
  • 130,000 MILES
1. There are no lights on the Dashboard at nighttime, the dashboard all black.
2. The long light bulb (blue one) sometimes lights on, sometimes it doesn't.
Is the bulb problem or fuse? Which blub do I need to change if the bulb is bad?
Friday, November 5th, 2021 AT 10:48 PM

3 Replies

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
If the cluster lights are not working when you turn the headlights on, we first need to make sure the dimmer switch is not turned off. This is by far the most common cause of this when the cluster lights are the only thing not working.

If this is not the issue, then turn the lights on and check the other components that should have illumination when the lights are on. This includes the control panel lights, clock, AC control head.

If these are all working, then the fuse that power the cluster illumination is fine as these are all powered by the same fuse.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

If the cluster is the only thing not working and these things check out, then we are going to have to check the voltage on the illumination circuit going into the cluster. If there is voltage, then the cluster is the issue.

https://www.2carpros.com/articles/how-to-check-wiring

I attached the diagrams below so let me know what questions you have. Thanks
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Saturday, November 6th, 2021 AT 7:48 PM
Tiny
EVA CHIN
  • MEMBER
  • 2 POSTS
Thanks, KaseKenny1! I accidentally turned the dimmer switch off. When I turned it back on, all the lights were on.
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Sunday, November 7th, 2021 AT 7:07 AM
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Oh. Thank goodness. Not only is that the most common thing but if it is not the issue then these are not the easiest to fix.

Thanks for coming back and updating us as that confirmation will surely help others that view this.

Please let us know if you need other info in the future. Thanks
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Sunday, November 7th, 2021 AT 7:29 AM

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