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2006 Toyota Tundra Gauge Cluster Backlight Issues

Tiny
SAX4HIM
  • MEMBER
  • 2006 TOYOTA TUNDRA
  • V6
  • AUTOMATIC
  • 76,000 MILES
The back light for the gauges on my dash, as well as the knobs for my A/C are completely out. I tried turning the dimmer, nothing. I tried checking the fuses, all work fine. I tried uninstalling my new radio, nothing. I have no idea what to do and am freaking out because I cannot see how fast I am driving in the evening and do not want a speeding ticket. I would also like for my car to pass inspection, and with those lights out it surely will fail.
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Tuesday, July 28th, 2015 AT 11:07 PM

9 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Are the taillights working?
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Wednesday, July 29th, 2015 AT 9:03 AM
Tiny
SAX4HIM
  • MEMBER
  • 3 POSTS
Yes. My tail lights are working 100% along with my blinkers and everything else. The lights that do not come on are my license plate lights, my dashboard backlight, and myA/C backlight. Any help?
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Friday, July 31st, 2015 AT 3:50 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Are other illumination lights such as glove box, cigarette lighter, ashtray all working?
Is this a doubl cab and base model?
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Sunday, August 2nd, 2015 AT 12:00 AM
Tiny
SAX4HIM
  • MEMBER
  • 3 POSTS
Yes, all other lights are working. This is an access cab full bed. Base model sr5
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Monday, August 3rd, 2015 AT 2:03 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
All the three lights you mentioned are on different circuits therefore most probably you have failed bulbs except for the instrument illumination, it could be a faulty meter illumination indicator. Check tthe wiring first.
The license plate lights are directly linked to the taillights so you need to check the bulbs and wiring at rear end.
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Thursday, August 6th, 2015 AT 6:52 AM
Tiny
CHRISTOPHER BOUCHER
  • MEMBER
  • 2 POSTS
Did you get an answer for this sax4him? I'm currently sitting at Burger king trying to find where the fuse is and I have pretty much the same issue. All the lights you mentioned plus my cig lighter light and ashtray light. I was just changing the license plate lights I noticed aren't working. New bulbs didn't do the trick for that. And now my gauge cluster is out. Can't find a diagram of the sr5 fuse boxes anymore. Just gonna start plucking I guess.
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Thursday, February 9th, 2017 AT 10:58 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Hey CHRISTOPHER,

Here is a a wiring diagram that shows an integration relay that needs to be checked out, here is a guide to help you out and get the problem fixed.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Please let us know happens so it will help others.

Best, Ken
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Monday, February 13th, 2017 AT 9:49 AM
Tiny
CHRISTOPHER BOUCHER
  • MEMBER
  • 2 POSTS
I ended up searching through the fuses in the daylight and it turned out to be a 20 amp blown fuse in the interior fuse box. Grabbed a spare from under the hood and was good to go.
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Sunday, February 26th, 2017 AT 4:57 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Glad you could get it fixed please use 2CarPros. Com anytime we are here to help

Best, Ken
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Sunday, February 26th, 2017 AT 6:23 PM

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