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#1 Jim Walker

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Posted 20 April 2003 - 02:20 PM

Lexus LS400 '93 and '94 have a problem with the instrument cluster lights (dash lights). Many many people have this problem. The dash lights won't come on for a while, then they will flicker and finally come on. This is more evident in cold weather. This problem gets worse over a period of weeks or months until they will refuse to come on at all. When the light are off, the fuel gauge points to empty as well.

The problem, I found, is in the power supply circuit boards. They are located behind the instrument cluster. I have compiled some detailed instructions on how to remove those boards. If you want a copy of those instructions, just Email (PM) me. I'll Email them to you, no charge. I would attach them here, but they are larger than the 102.4KB limit on this board.

My car did that. '93 LS400. The Lexus dealer wanted $1400 to repair it. I repaired mine myself, I'm an electronics engineer and I can help you repair yours too! Email me or PM me

Jim Walker
jimlwalker@sbcglobal.net



--------------------
I have the Repair for your '93 or '94 LS400 flickering INSTRUMENT LIGHTS! I'm an electronics engineer and have found the solution to this common problem on my own car! I want to help you with your problem too.

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#2 moune

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Posted 15 July 2004 - 12:15 PM

I am also having a problem with my instrument cluster, the RPM guage doesn't work anymore. It stopped working after I hit a huge pot hole. I think it's just something loose or got disconnected. If you can please email me the instructions on how to take it apart and check. thanks My email moune186@yahoo.com

#3 pcoombes

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Posted 17 September 2004 - 07:17 PM

I have both issues so if anyone that has any information on either topic can email me I would be very grateful.

Thanks,
Pete
pcoombes@excelswitching.com

#4 michaelg

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Posted 28 August 2005 - 03:09 PM

I dont have the light problem but my temperature guage doesnt work. it stays pegged at hot. do you know how to repair?


Lexus LS400 '93 and '94 have a problem with the instrument cluster lights (dash lights). Many many people have this problem. The dash lights won't come on for a while, then they will flicker and finally come on. This is more evident in cold weather. This problem gets worse over a period of weeks or months until they will refuse to come on at all. When the light are off, the fuel gauge points to empty as well.

The problem, I found, is in the power supply circuit boards. They are located behind the instrument cluster. I have compiled some detailed instructions on how to remove those boards. If you want a copy of those instructions, just Email (PM) me. I'll Email them to you, no charge. I would attach them here, but they are larger than the 102.4KB limit on this board.

My car did that. '93 LS400. The Lexus dealer wanted $1400 to repair it. I repaired mine myself, I'm an electronics engineer and I can help you repair yours too! Email me or PM me

Jim Walker
jimlwalker@sbcglobal.net



--------------------
I have the Repair for your '93 or '94 LS400 flickering INSTRUMENT LIGHTS! I'm an electronics engineer and have found the solution to this common problem on my own car! I want to help you with your problem too.

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#5 misshooty

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Posted 25 September 2006 - 03:25 PM

Lexus LS400 '93 and '94 have a problem with the instrument cluster lights (dash lights). Many many people have this problem. The dash lights won't come on for a while, then they will flicker and finally come on. This is more evident in cold weather. This problem gets worse over a period of weeks or months until they will refuse to come on at all. When the light are off, the fuel gauge points to empty as well.

The problem, I found, is in the power supply circuit boards. They are located behind the instrument cluster. I have compiled some detailed instructions on how to remove those boards. If you want a copy of those instructions, just Email (PM) me. I'll Email them to you, no charge. I would attach them here, but they are larger than the 102.4KB limit on this board.

My car did that. '93 LS400. The Lexus dealer wanted $1400 to repair it. I repaired mine myself, I'm an electronics engineer and I can help you repair yours too! Email me or PM me

Jim Walker
jimlwalker@sbcglobal.net



--------------------
I have the Repair for your '93 or '94 LS400 flickering INSTRUMENT LIGHTS! I'm an electronics engineer and have found the solution to this common problem on my own car! I want to help you with your problem too.



My dash is completely out except when I start my car. The pointers flicker and all of the sensor lights light up but I have no idea how much gas I have or how fast I am going..(not good for a girl with a bit of a lead foot). I have a '93 LS that I love but don't want to spend thousands to repair the dash. I am in the Indianapolis area if you know of anyone here, but I would also love to have the info on repairing it. I can get a friend to help me.

Thank you soooo much!!!!

My email is misshooty2004@yahoo.com

#6 VBdenny

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Posted 15 October 2006 - 06:49 AM

Jim,

I'll bet if you ask SK or one of the other moderators maybe they can still add it to this section in spite of the limit. This is a great service you have provided and through the years I know you have helped many people here. I would love to have a copy even though I don't have this problem.

Denny

and I forgot....

Michael, are you SURE it is not that you really are running hot? My brother had a waterpump impeller break one time and he thought it was the gauge but it wasn't. Just a thought since if it breaks it seems the gauge would rest on C

#7 SPEEDYPETEY52

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Posted 20 January 2007 - 12:14 PM

Lexus LS400 '93 and '94 have a problem with the instrument cluster lights (dash lights). Many many people have this problem. The dash lights won't come on for a while, then they will flicker and finally come on. This is more evident in cold weather. This problem gets worse over a period of weeks or months until they will refuse to come on at all. When the light are off, the fuel gauge points to empty as well.

The problem, I found, is in the power supply circuit boards. They are located behind the instrument cluster. I have compiled some detailed instructions on how to remove those boards. If you want a copy of those instructions, just Email (PM) me. I'll Email them to you, no charge. I would attach them here, but they are larger than the 102.4KB limit on this board.

My car did that. '93 LS400. The Lexus dealer wanted $1400 to repair it. I repaired mine myself, I'm an electronics engineer and I can help you repair yours too! Email me or PM me

Jim Walker
jimlwalker@sbcglobal.net


thanks jim any help would be greatly appreciated you can e- mail to speedypetey52@yahoo.com
--------------------
I have the Repair for your '93 or '94 LS400 flickering INSTRUMENT LIGHTS! I'm an electronics engineer and have found the solution to this common problem on my own car! I want to help you with your problem too.



#8 logic

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Posted 13 March 2007 - 08:29 PM


Lexus LS400 '93 and '94 have a problem with the instrument cluster lights (dash lights). Many many people have this problem. The dash lights won't come on for a while, then they will flicker and finally come on. This is more evident in cold weather. This problem gets worse over a period of weeks or months until they will refuse to come on at all. When the light are off, the fuel gauge points to empty as well.

The problem, I found, is in the power supply circuit boards. They are located behind the instrument cluster. I have compiled some detailed instructions on how to remove those boards. If you want a copy of those instructions, just Email (PM) me. I'll Email them to you, no charge. I would attach them here, but they are larger than the 102.4KB limit on this board.

My car did that. '93 LS400. The Lexus dealer wanted $1400 to repair it. I repaired mine myself, I'm an electronics engineer and I can help you repair yours too! Email me or PM me

Jim Walker
jimlwalker@sbcglobal.net

Hi, do you know where to get those two oval shaped flourescent bulbs that go in the instrument cluster to light up the speedometer and tach gauge?



--------------------
I have the Repair for your '93 or '94 LS400 flickering INSTRUMENT LIGHTS! I'm an electronics engineer and have found the solution to this common problem on my own car! I want to help you with your problem too.



My dash is completely out except when I start my car. The pointers flicker and all of the sensor lights light up but I have no idea how much gas I have or how fast I am going..(not good for a girl with a bit of a lead foot). I have a '93 LS that I love but don't want to spend thousands to repair the dash. I am in the Indianapolis area if you know of anyone here, but I would also love to have the info on repairing it. I can get a friend to help me.

Thank you soooo much!!!!

My email is misshooty2004@yahoo.com


Hi, do you know where to get those two oval shaped flourescent bulbs that go in the instrument cluster to light up the speedometer and tach gauge?

#9 Jim Walker

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Posted 14 March 2007 - 12:18 PM



Lexus LS400 '93 and '94 have a problem with the instrument cluster lights (dash lights). Many many people have this problem. The dash lights won't come on for a while, then they will flicker and finally come on. This is more evident in cold weather. This problem gets worse over a period of weeks or months until they will refuse to come on at all. When the light are off, the fuel gauge points to empty as well.

The problem, I found, is in the power supply circuit boards. They are located behind the instrument cluster. I have compiled some detailed instructions on how to remove those boards. If you want a copy of those instructions, just Email (PM) me. I'll Email them to you, no charge. I would attach them here, but they are larger than the 102.4KB limit on this board.

My car did that. '93 LS400. The Lexus dealer wanted $1400 to repair it. I repaired mine myself, I'm an electronics engineer and I can help you repair yours too! Email me or PM me

Jim Walker
jimlwalker@sbcglobal.net

Hi, do you know where to get those two oval shaped flourescent bulbs that go in the instrument cluster to light up the speedometer and tach gauge?



--------------------
I have the Repair for your '93 or '94 LS400 flickering INSTRUMENT LIGHTS! I'm an electronics engineer and have found the solution to this common problem on my own car! I want to help you with your problem too.



My dash is completely out except when I start my car. The pointers flicker and all of the sensor lights light up but I have no idea how much gas I have or how fast I am going..(not good for a girl with a bit of a lead foot). I have a '93 LS that I love but don't want to spend thousands to repair the dash. I am in the Indianapolis area if you know of anyone here, but I would also love to have the info on repairing it. I can get a friend to help me.

Thank you soooo much!!!!

My email is misshooty2004@yahoo.com


Hi, do you know where to get those two oval shaped flourescent bulbs that go in the instrument cluster to light up the speedometer and tach gauge?





Lexus LS400 '93 and '94 have a problem with the instrument cluster lights (dash lights). Many many people have this problem. The dash lights won't come on for a while, then they will flicker and finally come on. This is more evident in cold weather. This problem gets worse over a period of weeks or months until they will refuse to come on at all. When the light are off, the fuel gauge points to empty as well.

The problem, I found, is in the power supply circuit boards. They are located behind the instrument cluster. I have compiled some detailed instructions on how to remove those boards. If you want a copy of those instructions, just Email (PM) me. I'll Email them to you, no charge. I would attach them here, but they are larger than the 102.4KB limit on this board.

My car did that. '93 LS400. The Lexus dealer wanted $1400 to repair it. I repaired mine myself, I'm an electronics engineer and I can help you repair yours too! Email me or PM me

Jim Walker
jimlwalker@sbcglobal.net

Hi, do you know where to get those two oval shaped flourescent bulbs that go in the instrument cluster to light up the speedometer and tach gauge?



--------------------
I have the Repair for your '93 or '94 LS400 flickering INSTRUMENT LIGHTS! I'm an electronics engineer and have found the solution to this common problem on my own car! I want to help you with your problem too.



My dash is completely out except when I start my car. The pointers flicker and all of the sensor lights light up but I have no idea how much gas I have or how fast I am going..(not good for a girl with a bit of a lead foot). I have a '93 LS that I love but don't want to spend thousands to repair the dash. I am in the Indianapolis area if you know of anyone here, but I would also love to have the info on repairing it. I can get a friend to help me.

Thank you soooo much!!!!

My email is misshooty2004@yahoo.com


Hi, do you know where to get those two oval shaped flourescent bulbs that go in the instrument cluster to light up the speedometer and tach gauge?



Yes, I have those oval lights, but chances are they are not bad. There are other reasons for those not to light up. Email me directly so I can send the info. jimlwalker@sbcglobal.net

#10 Paul A

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Posted 26 October 2007 - 06:36 PM

I have a 92 LS400 that in the last month the light on the needle of the speed guage is half out or black, but only half of the needle. Not sure what this is all about. For a few years now the LCD the you read temp & clock is dark and you can't read, but the LCD fpr the radio/CD is fine.

Paul

#11 nickbroadhead

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Posted 09 June 2008 - 05:29 PM

Hi my name is nick and i have a 1993 LS400 and the gauges do exactly what you are describing. I would love to know how to fix it. Please send me directions. Thanks!

Nick

#12 MA56

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Posted 21 June 2008 - 08:39 AM

I have a 1996 LS400 and I am having a problem with the speedometer not working in the morning but it eventually starts working after driving about 10 miles. Would this fix also help my problem? I would like to have the instructions if it would fix my problem.
Thanks for any help you can give me.
Mary

#13 ShereeJane

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Posted 15 October 2008 - 07:29 AM

Lexus LS400 '93 and '94 have a problem with the instrument cluster lights (dash lights). Many many people have this problem. The dash lights won't come on for a while, then they will flicker and finally come on. This is more evident in cold weather. This problem gets worse over a period of weeks or months until they will refuse to come on at all. When the light are off, the fuel gauge points to empty as well.

The problem, I found, is in the power supply circuit boards. They are located behind the instrument cluster. I have compiled some detailed instructions on how to remove those boards. If you want a copy of those instructions, just Email (PM) me. I'll Email them to you, no charge. I would attach them here, but they are larger than the 102.4KB limit on this board.

My car did that. '93 LS400. The Lexus dealer wanted $1400 to repair it. I repaired mine myself, I'm an electronics engineer and I can help you repair yours too! Email me or PM me

Jim Walker
jimlwalker@sbcglobal.net



--------------------
I have the Repair for your '93 or '94 LS400 flickering INSTRUMENT LIGHTS! I'm an electronics engineer and have found the solution to this common problem on my own car! I want to help you with your problem too.



#14 janne

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Posted 19 November 2008 - 05:51 AM

Hi my name is Janne and i have a 1994 LS400 and the gauges do exactly what you are describing. I would love to know how to fix it. Please send me directions. Thanks!
My email is
jan_aberg_7@hotmail.com

#15 turbo4546969

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Posted 19 November 2008 - 06:30 AM

Lexus LS400 '93 and '94 have a problem with the instrument cluster lights (dash lights). Many many people have this problem. The dash lights won't come on for a while, then they will flicker and finally come on. This is more evident in cold weather. This problem gets worse over a period of weeks or months until they will refuse to come on at all. When the light are off, the fuel gauge points to empty as well.

The problem, I found, is in the power supply circuit boards. They are located behind the instrument cluster. I have compiled some detailed instructions on how to remove those boards. If you want a copy of those instructions, just Email (PM) me. I'll Email them to you, no charge. I would attach them here, but they are larger than the 102.4KB limit on this board.

My car did that. '93 LS400. The Lexus dealer wanted $1400 to repair it. I repaired mine myself, I'm an electronics engineer and I can help you repair yours too! Email me or PM me

Jim Walker
jimlwalker@sbcglobal.net



--------------------
I have the Repair for your '93 or '94 LS400 flickering INSTRUMENT LIGHTS! I'm an electronics engineer and have found the solution to this common problem on my own car! I want to help you with your problem too.



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