ES300: Replacing Cluster Backlighting Bulbs
"White" LEDs usually have a hint of blue in them. It might also depend on the amount of ambient light around them when you turn them on. In bright sunlight, they'll look whiter than they do at night. On the other hand, maybe superbrightleds.com sent you the wrong color? 
Are they as blue as those in LW ES300's cluster posted above? If so, I'd say you were definitely sent blue LEDs by mistake.

Are they as blue as those in LW ES300's cluster posted above? If so, I'd say you were definitely sent blue LEDs by mistake.
Last edited by Lexucan; Nov 11, 2008 at 11:12 AM.
They might have sent the wrong ones but the package they came in said they were the 74 W white's, I'm not sure if they really were though.. I'd say the color looks like the bluish white tuan got for half of his lights. I'll put up a picture soon
I have to say this is the best article on the subject I have seen on the web.

I just completed the process and then found the article and it is completely on the mark. Just a few more comments hoping they will help others.
1. For rugular bulbs, you may buy Eiko bulbs on the internet for about $5 a box of ten.
#74 Miniature Indicator Lamp - 14 Volt - T1-3/4 Sub Mini Wedge Base - EIKO #74
Manufacturer: EIKO International
Manufacturer's Part Number: 74
14V .1A/T1-3/4 Sub Mini Wedge Base
14 Volts
Filament: C-2F
1,000 Life Hours
T-1 3/4 Bulb
Sub-Miniature Wedge (W2.1x4.9d)
Length: .80 in.
Sold by Full Case Only (10)
$5.31 per box.
2. Since I do not have a Lexus dealer close by, and since Avalon uses the same instrument POD, I ordered Toyota Part No. 90069-98004. Since these bulbs are direct replacement, I could reuse the blue diffuser cap on the original bulbs with these bulbs.
3. Also noticed a few of the bases were brown at the point of contact with bulbs and a couple were actually crumbling possibly because of the contact with heated bulbs. The dealer ordered the bases but got wrong parts and I landed up reusing the original bases.
2. The trickiest part I found was to get the Instrument POD out, taking the connectors off prior to taking the POD out and the reverse procedure of reconnecting the connectors and getting the POD back in. For the last part, I had to get rid of the wiring sleeve for the three connectors that go on the back of the POD. Also had to pull some on the Reset Trip Switch Connector (3 pins, on the right side on the Black piece that goes in front of the Instrumentation cluster, which has two connectors connected to it) cable-set to gain extra length.
3. While replacing the bulbs, I used some household metal glue on the connector ends and some household glass glue on the sides of the wedge to ensure that bulbs stay connected when in a high vibration application.
Good luck with your project.
I just completed the process and then found the article and it is completely on the mark. Just a few more comments hoping they will help others.
1. For rugular bulbs, you may buy Eiko bulbs on the internet for about $5 a box of ten.
#74 Miniature Indicator Lamp - 14 Volt - T1-3/4 Sub Mini Wedge Base - EIKO #74
Manufacturer: EIKO International
Manufacturer's Part Number: 74
14V .1A/T1-3/4 Sub Mini Wedge Base
14 Volts
Filament: C-2F
1,000 Life Hours
T-1 3/4 Bulb
Sub-Miniature Wedge (W2.1x4.9d)
Length: .80 in.
Sold by Full Case Only (10)
$5.31 per box.
2. Since I do not have a Lexus dealer close by, and since Avalon uses the same instrument POD, I ordered Toyota Part No. 90069-98004. Since these bulbs are direct replacement, I could reuse the blue diffuser cap on the original bulbs with these bulbs.
3. Also noticed a few of the bases were brown at the point of contact with bulbs and a couple were actually crumbling possibly because of the contact with heated bulbs. The dealer ordered the bases but got wrong parts and I landed up reusing the original bases.
2. The trickiest part I found was to get the Instrument POD out, taking the connectors off prior to taking the POD out and the reverse procedure of reconnecting the connectors and getting the POD back in. For the last part, I had to get rid of the wiring sleeve for the three connectors that go on the back of the POD. Also had to pull some on the Reset Trip Switch Connector (3 pins, on the right side on the Black piece that goes in front of the Instrumentation cluster, which has two connectors connected to it) cable-set to gain extra length.
3. While replacing the bulbs, I used some household metal glue on the connector ends and some household glass glue on the sides of the wedge to ensure that bulbs stay connected when in a high vibration application.
Good luck with your project.
Last edited by Esource; Feb 1, 2009 at 02:43 PM. Reason: typo
always fun to look through the years of replies to this original topic 
Anyway, i just became owner of an SC400 and i am going to go ahead and try this trick on mine. i haven't gotten a chance to pull out the cluster but will get to it soon. i am really hoping the bulb numbers listed here are interchangable with the SC. if done correctly, based on pictures i've seen on here, very reminiscent of the newer OEM Optitron electroluminescent from lexus directly. very very cool.
thanks again for the helpful directions

Anyway, i just became owner of an SC400 and i am going to go ahead and try this trick on mine. i haven't gotten a chance to pull out the cluster but will get to it soon. i am really hoping the bulb numbers listed here are interchangable with the SC. if done correctly, based on pictures i've seen on here, very reminiscent of the newer OEM Optitron electroluminescent from lexus directly. very very cool.
thanks again for the helpful directions
i have went to the auto part stores and tried bulb # 24 74 194 and toyota part no 90069-98004 not one would work #194 was to big #24 #74 and toyots part no. 90069-98004 bulb no 203 were all to small they wiggled a lot and now wouldnt stay in now toyota order part no 83119-24570 from lexus and i dont know what i am going to do if it dosnt work i have taken apart the instrument cluster 4 times
i dont need any instruction on how to do it any more but i am wonder why the bulb work for others but not me what gives
i have a 95 es300
i dont need any instruction on how to do it any more but i am wonder why the bulb work for others but not me what gives
i have a 95 es300
Has anyone tried to do this on a 97' ES300? The light indicator for the headlamps are out on my cluster. I don't think I would need to replace all of the bulbs? Any help? Please include a write up or link to write up for the 97 model if possible, thanks.
Yeah, I wouldn't mind trying it myself for the first time. What is the deal with having to reset the needle gauges though? If I take it apart will I have to worry about messing with any of the settings?
This forum has been helpfull to me. So far I've replaced the LCD on my radio, and replaced the license plate lights. I just wish there was a subforum specific to 97' ES300's though so I wouldn't have to worry about seeing something different from the write-ups when I take things apart.
This forum has been helpfull to me. So far I've replaced the LCD on my radio, and replaced the license plate lights. I just wish there was a subforum specific to 97' ES300's though so I wouldn't have to worry about seeing something different from the write-ups when I take things apart.
Re-adjusting the needle positions is sometimes necessary when doing work on the 2nd generation ES gauge needles, but that has nothing to do with your 3rd generation ES or with replacing the cluster indicator bulbs. You shouldn't need to reset anything.
i just bought a lexus es300 1996 and i seem to have the same prolem of burnt out cluster bulbs. i'm planning on ordering LEDs from ebay but not sure which size to get. i have bin reading the threads and some say 286 others say something else. also can i pull out the old bulbs and stick in the new LEDs or do i have to buy new wedges?
does anyone have a video of them doin this it would help alot. and last but not least am i goin to have to mess with my needles on the guage cluster if im just replaceing the bulbs with LEDs?
does anyone have a video of them doin this it would help alot. and last but not least am i goin to have to mess with my needles on the guage cluster if im just replaceing the bulbs with LEDs?

Yes, but take note of the proper polarity when using LEDs. There is a photo in the write-up indicating the positive and negative polarity of each bulb socket.
There is no video of which I am aware.
No. You don't have to touch your gauge needles.
thanks lex, i just ordered a set of 10 #286 spark blue leds from ebay seller named warden jp. They shud be coming in a week or two and ill get started.
Do you have the estimated time to complete this DIY?
& as for the polarity, how do u know which side of the LED is positive or negative?
Thanks for putting up with me guys, this is my first car and im learning new things about the lexus everyday.
Do you have the estimated time to complete this DIY?
& as for the polarity, how do u know which side of the LED is positive or negative?
Thanks for putting up with me guys, this is my first car and im learning new things about the lexus everyday.
Give yourself a couple of hours to do the job. Probably the most time-consuming part is getting the cluster out of the car. There are three wiring harnesses attached to the back of the cluster that can sometimes be a PITA to disconnect as there is not much room to get your hands back there and work at them. But be patient and methodical, and it should all go fine.
The LEDs you ordered will very likely have a resistor embedded inside them at the base, and possibly a diode as well. As an example, see the T-1 3/4 WEDGE-BASE WHITE photo close to the bottom of the DIY write-up. The blue striped resistor is connected to the left side. That is the positive side.
Another way to check the polarity (and a good way to test your LEDs before you install them to make sure they all work...sometimes you might receive a dud) is with a 9V alkaline battery. Attach one end of a 1k resistor to the positive terminal and one end of a short wire to the negative terminal. Then touch the free end of the wire to one of the LED contacts and the free end of the 1K resistor to the other LED contact. When the LED lights up, whichever contact is touching the 1K resistor is the positive contact.
No worries. We're all here to help each other out when needed. Good luck with the project.
Another way to check the polarity (and a good way to test your LEDs before you install them to make sure they all work...sometimes you might receive a dud) is with a 9V alkaline battery. Attach one end of a 1k resistor to the positive terminal and one end of a short wire to the negative terminal. Then touch the free end of the wire to one of the LED contacts and the free end of the 1K resistor to the other LED contact. When the LED lights up, whichever contact is touching the 1K resistor is the positive contact.
No worries. We're all here to help each other out when needed. Good luck with the project.



