GX - 1st Gen (2003-2009) Discussion topics related to the 2003 -2009 GX470 models

Instrument cluster back lighting?

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Old 09-12-13 | 08:59 PM
  #16  
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Originally Posted by mrblister
Thanks I may pull the cluster and see which led is out. Is it possible to pull cluster out a bit and leave it connected to the harness to see if I can find the burned out led. I guess I just carefully unsolder with a suction bulb and then make sure i get the polairty right when going back in. If I cant gain access with the harness attached could i apply a 12 volts test battery to the errant led while its soldered in place to prove its out or are the led reduced to 5 volt on the boards
No you need to disconnect the plugs in back of the harness in order to take the cluster apart. Once you get it apart and the circuit board is visible (like the Camry above) you can plug it back in to see which LED is burnt out.
Old 09-16-13 | 09:50 AM
  #17  
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Old 09-16-13 | 10:05 AM
  #18  
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Originally Posted by RCsGX
Thanks
Question There is a refferance to removing two bolts [ A ] in your picture to remove the meter are these on the back I am not sure understand . I may need to see it once I get it out
Old 09-16-13 | 11:04 AM
  #19  
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Originally Posted by mrblister
Thanks
Question There is a refferance to removing two bolts [ A ] in your picture to remove the meter are these on the back I am not sure understand . I may need to see it once I get it out
No, the 2 arrows are pointing to the 2 bolts.


EDIT:

The 4 screws are circled in red. The 2 arrows are the bolts:
Old 09-16-13 | 03:46 PM
  #20  
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I see now. I was looking for a letter A Missed the arrows completely

Thanks
Old 09-16-13 | 07:09 PM
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Originally Posted by mrblister
I see now. I was looking for a letter A Missed the arrows completely

Thanks
It does look confusing.
Old 09-18-13 | 02:01 AM
  #22  
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Here's 2 PDFs that shows the breakdown of the gauge cluster....
Attached Files
File Type: pdf
gauge cluster components.pdf (51.7 KB, 719 views)
File Type: pdf
gauge cluster repair.pdf (140.4 KB, 928 views)
Old 11-15-18 | 02:46 PM
  #23  
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Does anybody by chance know exactly what the part numbers or at least the specifications of the LEDs are and or a possible link to a site to purchase them?
Old 06-17-19 | 11:37 AM
  #24  
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Originally Posted by YoshiMan
Hello everyone.

On the lower left side of my speedometer, there's a spot that looks just a hair darker than the rest of the gauge cluster. I can't really tell if this is just how it is, or if its something that's gone out, but i'de like to take a closer look at it. The needles are all still 100% though, which is good.

Now can anyone tell me, are the back lights in the gauge clusters on these just standard replaceable bulbs, or are they made of those cathode tube/electroluminescent parts like the older LS400 gauges are? I haven't ordered my Factory Service manuals yet, so i'm still totally in the dark on the..."schematics" of this truck.

Thanks in advance!
Hey yoshi, did you ever find out what this was? I noticed the same thing on my 06 IS350. I know this is a long dead thread but I posted here on the forums and got 0 responses lol.

It’s funny because even though we have different models of Lexus the EXACT way you describe your cluster is mine too. For some reason I can’t capture it in pics and it’s more noticeable during the day than night, weird.
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