Anyone had any problems with their LS430?
Lead Lap
Joined: Sep 2001
Posts: 770
Likes: 0
From: woodinville WA
Canadian LS430
The only difference I am aware of is you have an electrically heated windshield, and driving in the wet you more likely than not (ALL Lexii are VERY prone to windshield fogging) turned on the defog/demist mode.
I don't really have any idea how much electrical power the embedded heater would use, but I would bet it is substantial. And since your problems seem to be related to some sort of electrical problem...
You might experiment by disconnecting the windshield heating, pull the fuse say. But then if your windshield does happen to begin to fog over you must be very quick to react properly (defog, setpoint to max heat) as the normal, US, defogging system is horribly inadequate.
I don't really have any idea how much electrical power the embedded heater would use, but I would bet it is substantial. And since your problems seem to be related to some sort of electrical problem...
You might experiment by disconnecting the windshield heating, pull the fuse say. But then if your windshield does happen to begin to fog over you must be very quick to react properly (defog, setpoint to max heat) as the normal, US, defogging system is horribly inadequate.
Driver School Candidate
Joined: Jul 2002
Posts: 19
Likes: 0
From: Canada
Re: Canadian LS430
Originally posted by wwest
The only difference I am aware of is you have an electrically heated windshield, and driving in the wet you more likely than not (ALL Lexii are VERY prone to windshield fogging) turned on the defog/demist mode.
I don't really have any idea how much electrical power the embedded heater would use, but I would bet it is substantial. And since your problems seem to be related to some sort of electrical problem...
You might experiment by disconnecting the windshield heating, pull the fuse say. But then if your windshield does happen to begin to fog over you must be very quick to react properly (defog, setpoint to max heat) as the normal, US, defogging system is horribly inadequate.
The only difference I am aware of is you have an electrically heated windshield, and driving in the wet you more likely than not (ALL Lexii are VERY prone to windshield fogging) turned on the defog/demist mode.
I don't really have any idea how much electrical power the embedded heater would use, but I would bet it is substantial. And since your problems seem to be related to some sort of electrical problem...
You might experiment by disconnecting the windshield heating, pull the fuse say. But then if your windshield does happen to begin to fog over you must be very quick to react properly (defog, setpoint to max heat) as the normal, US, defogging system is horribly inadequate.
Pole Position
Joined: Apr 2002
Posts: 262
Likes: 5
From: indiana
It sounds like your problems are related to the multiplex system. The LS430 uses many different computer modules, and they communicate with each other using a 1-wire serial communications bus. Perhaps one of your modules is failing in such a way as to interfere with this communication.
-jim-
-jim-
Originally posted by LS430-Cda
Yes, there are big problems. I bought a new 2001 LS430 a year ago. The alignment is already out at 15k km. There is another major problem. I was driving in a rainy day when suddenly the gas gauge display went down to nothing, the hi/lo beam control went out (only low beam), the sound control was out, the dimm light control for the instrument panel was out (at its full intensity that shined into my eyes and made highway driving at night very uncomfortable). The problems were cleared when I re-started the engine. The problems recurred the 2nd day and then I also found that all memory seats were gone, trunk releases (both manual and remote) were out as well. Lexus Canada witnessed the problems when they were duplicated the third time but unable to find the cause. They decided to change the battery. It appears to me that the onboard computer needs re-boot when moisture in the air goes too high. Lexus refuses to guarantee if ABS and airbags are working during the defective condition. It could be a lemon, but for a car manufacturer claiming to do "relentless pursuit of perfection" there should be no lemon. The computer problem may be much bigger than Lexus would like to admit.
Yes, there are big problems. I bought a new 2001 LS430 a year ago. The alignment is already out at 15k km. There is another major problem. I was driving in a rainy day when suddenly the gas gauge display went down to nothing, the hi/lo beam control went out (only low beam), the sound control was out, the dimm light control for the instrument panel was out (at its full intensity that shined into my eyes and made highway driving at night very uncomfortable). The problems were cleared when I re-started the engine. The problems recurred the 2nd day and then I also found that all memory seats were gone, trunk releases (both manual and remote) were out as well. Lexus Canada witnessed the problems when they were duplicated the third time but unable to find the cause. They decided to change the battery. It appears to me that the onboard computer needs re-boot when moisture in the air goes too high. Lexus refuses to guarantee if ABS and airbags are working during the defective condition. It could be a lemon, but for a car manufacturer claiming to do "relentless pursuit of perfection" there should be no lemon. The computer problem may be much bigger than Lexus would like to admit.
Lexus Test Driver
Joined: Jun 2001
Posts: 1,580
Likes: 19
From: California
Here in the states, if the dealer can duplicate the problem but after repeated attempts was not able to fix the problem, Lexus USA usually buys back the vehicle.
Here's one example of a problem with the 2002 ES300:
https://www.clublexus.com/forums/sho...threadid=42209
Here's one example of a problem with the 2002 ES300:
https://www.clublexus.com/forums/sho...threadid=42209
Pole Position
Joined: Jun 2002
Posts: 390
Likes: 1
From: CA
Originally posted by lex400sc
With a shelf life of 400,000 miles before a major rebuild, the 1UZ-FE will outlast most diesel motors, forget regular GM V8s! The 2UZ-FE was built to be more reliable, troublefree, and easier/quicker to diagnose and fix than the 1UZ. Depends on your definition of "rock solid", but compared to Lexus motors, the Chevys are not "rock solid". I could go into details, but if no one else objects, I'll leave it at that.
With a shelf life of 400,000 miles before a major rebuild, the 1UZ-FE will outlast most diesel motors, forget regular GM V8s! The 2UZ-FE was built to be more reliable, troublefree, and easier/quicker to diagnose and fix than the 1UZ. Depends on your definition of "rock solid", but compared to Lexus motors, the Chevys are not "rock solid". I could go into details, but if no one else objects, I'll leave it at that.
No problems with 2002
Driver School Candidate
Joined: Jul 2002
Posts: 19
Likes: 0
From: Canada
Originally posted by jstjohnz
It sounds like your problems are related to the multiplex system. The LS430 uses many different computer modules, and they communicate with each other using a 1-wire serial communications bus. Perhaps one of your modules is failing in such a way as to interfere with this communication.
-jim-
It sounds like your problems are related to the multiplex system. The LS430 uses many different computer modules, and they communicate with each other using a 1-wire serial communications bus. Perhaps one of your modules is failing in such a way as to interfere with this communication.
-jim-
Driver School Candidate
Joined: Jul 2002
Posts: 19
Likes: 0
From: Canada
Originally posted by LexRX
LS430-Cda, can you post some interior pics. I think the wood color and design in the LS is among the best.
LS430-Cda, can you post some interior pics. I think the wood color and design in the LS is among the best.
Driver School Candidate
Joined: Jul 2002
Posts: 19
Likes: 0
From: Canada
Re: No problems with 2002
Originally posted by Ultrasonic
My LS430 has been trouble free. I have owned it for 7 months.
Scott in Florida
My LS430 has been trouble free. I have owned it for 7 months.
Scott in Florida
Driver School Candidate
Joined: Jul 2002
Posts: 19
Likes: 0
From: Canada
Buy back - sounds good.
Originally posted by whitels
Here in the states, if the dealer can duplicate the problem but after repeated attempts was not able to fix the problem, Lexus USA usually buys back the vehicle.
Here's one example of a problem with the 2002 ES300:
https://www.clublexus.com/forums/sho...threadid=42209
Here in the states, if the dealer can duplicate the problem but after repeated attempts was not able to fix the problem, Lexus USA usually buys back the vehicle.
Here's one example of a problem with the 2002 ES300:
https://www.clublexus.com/forums/sho...threadid=42209
Pole Position
Joined: Apr 2002
Posts: 262
Likes: 5
From: indiana
In order to restart the engine you have to (at least momentarily) turn the key off, this would reset the microprocessors that interface to the multiplex bus.
I would think that a communication bus problem would be able to be read out as a diagnostic fault code.
-jim-
I would think that a communication bus problem would be able to be read out as a diagnostic fault code.
-jim-
Originally posted by LS430-Cda
Thx Jim, any idea why re-boot the engine can bring it back to normal again? I just got back from vacation, will talk to Lexus dealer again tomorrow.
Thx Jim, any idea why re-boot the engine can bring it back to normal again? I just got back from vacation, will talk to Lexus dealer again tomorrow.
Thread
Thread Starter
Forum
Replies
Last Post
blacksc400
LS - 3rd Gen (2001-2006)
143
Jan 2, 2024 07:08 AM
