Lexus LS 400 - Answered Questions & Fixed Issues

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1996 Lexus LS 400. It keeps blowing out the relay when I activate the high beams. Any thoughts here?

Question edited for clarity, add maker. Question moved to model category. You are the only person the report this issue. https://www.google.com/search?q=1996+Lexus+LS+400+blows+headlight+relay There is a dead short somewhere, but relays can be checked for correct operation and also the two feeds to the relay can be tested. One is 12 volts low amps + and - and the the other is the 12 volts high amps feed + and - to the headlight itself. Operation comes via an instruction from the BCM requested via the stalk switch. You need the Dealership or a good auto electrician. https://www.google.com/search?q=auto+electrician+near+me ..
10/22/2023 10:37:15 PM • 1996 Lexus LS... • Answered on Oct 22, 2023 • 32 views
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93 Lexus ls 400 ob1 codes 2,31,41?

wow a blast from the past. google finds that, or the 93 service manual 31 = maf dead. 41 = tps sensor bad. 2 no 2 12 = RPM #1 signal dead, (CKP dead?) google finds it http://www.lexls.com/tutorials/intro/codereading.html
6/25/2023 12:34:36 PM • 1993 Lexus Ls... • Answered on Jun 25, 2023 • 404 views
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How to reset window settings on 1995 Lexus ls 400

ANGELOLISA. JUST ONE DOOR FAILS. WELL ALL FAIL FOR : 1: FUSE BLOWN 2; WIRES BAD 3 ;WINDOW GUIDE JAMMED up. 4: WINDOW MOTOR BAD OR ITS CHILD PROOFING CLUTCH BAD. (SAME REALLY) 5:CONTROLS BAD. AT DOOR. A TECH DOES TESTS NOT JUST GUESS WILD. USING A METER, CALLED A VOLT METER. we check full 12vdc to the motor ,pushing up. if good that is motor silent or sounds overloaded it is or window is jammed. so the tech pulls the motor driver and moves the window by hand oops its jammed. bad guides
5/22/2023 5:51:59 PM • 1995 Lexus LS... • Answered on May 22, 2023 • 430 views
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1995 Lexus LS400 vacuum line diagram

1/31/2023 2:03:04 AM • 1995 Lexus LS... • Answered on Jan 31, 2023 • 91 views
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1997 Lexus LS400. How do I disable my immobilizer.

Question edited for clarity, full 'year MAKE model'. Question moved to Year Model category. You can't! You have to fix the problem not find a way around it. You have a Lexus not an 1981 Chrysler. I have an ES330. Your antitheft system is protecting your vehicle to stop precisely what you are trying to do, drive the car without the correct credentials. You have a transponder chip in the key, a receiver in the steering column, alarm sensors, the antitheft module, the Body Control Module, the Engine Control Module, and all the break-in sensors on hood, trunk, doors, and inside the vehicle all protecting you against theft. You need an auto electrician, the dealership, or an auto locksmith / alarm installer with a pro grade scan tool computer to check the system and find out why it isn't working. If you lost all three keys, the dealership can make a key based on the VIN Number. Get one and then get the auto locksmith to make another and program both. https://www.google.com/search?q=auto+electrician+near+me
8/17/2022 10:10:11 PM • 1997 Lexus LS... • Answered on Aug 17, 2022 • 51 views
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How can I remove an electronic headrest from a 1996 Lexus LS400? Raising the headrest and pushing on the plastic tabs below does not do anything.

It is part of the safety restraint system and they are not normally removable. There is help in this link from the Lexus Owners Club. https://www.google.com/search?q=remove+an+electronic+headrest+from+a+1996+Lexus+LS400 ..
2/6/2022 10:50:46 PM • 1996 Lexus LS... • Answered on Feb 06, 2022 • 122 views
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Can't remove ignition key. I can start it, drive

either you have a problem with the cable that connects the gear lever to the ignition or the steering lock has broke inside.But i seem to think that its more likely to be the cable
10/31/2021 3:22:27 PM • 1995 Lexus LS... • Answered on Oct 31, 2021 • 421 views
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Key won't open locked doors. Can't get into car.

does it not unlock any of the doors? if it doesnt unlock any doors run down to the dealer and give them your vin number they will be able to cut you a key based on that. make sure you take your registration to prove you own the car. fortunately your car is the first gen ls400 because if it was much newer it would have had to had a key programmed to start it. keys at the dealer shouldnt be too much but if they are too expensive, just snag a blank off ebay they are only about 10 bucks. good luck!
10/30/2021 8:10:20 PM • 1990 Lexus LS... • Answered on Oct 30, 2021 • 355 views
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How to bi pass anti theft on a lexus ls 400 1997

you dont
10/7/2021 12:35:26 PM • 1997 Lexus LS... • Answered on Oct 07, 2021 • 34 views
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Changed alternator in 95 Lexus ls400 it will turn over but won't crank

I do not understand what you are asking. what are you saying it will turn over but won't crank? Are you sure the battery is OK, The alternator charges the battery and powers the electrical system but is out of the system when trying to start it.
10/2/2021 2:37:50 AM • 1995 Lexus LS... • Answered on Oct 02, 2021 • 121 views
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Door locks trunk button radio back lights sunroof

my radio is not working today changed my battery and i don't know my code
8/22/2021 1:10:39 AM • 1990 Lexus LS... • Answered on Aug 22, 2021 • 691 views
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Gluster gauge won't illuminate

Hello hayeizmyhome...Very low mileage for a 1990 model. However... this is usually around the mileage interval the dreaded instrument cluster, panel and dash light failures start...lights will flicker, then go out, gauges will start going up and down, lcd's will become hazey and hard to read....etc.
The instruments are illuminated both day and night while the ignition is on.
When the ignition is off, the panel goes dark and you can’t see the gauges at all.
The lexus has an electronic circuit board behind the inst. cluster that has been the problem. Very expensive repair if done by dealer.
*TIP* This circuit board can be repaired if you know a good electrical technician much cheaper.
The recommended timing belt replacement interval on the LS is 120k...water pump should be replaced also, the timing belt runs the water pump. The LS has a non-interference engine, meaning if the belt breaks, no damage will be done to the engine...
Hope this answers your questions..and your lexus runs for many more miles...with proper care and maintainnace, it will.
4/19/2021 5:00:13 AM • 1990 Lexus LS... • Answered on Apr 19, 2021 • 397 views
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1995 Lexus 400 instrument cluster light not working

While the instrument clusters in all the 1995 ls-400 look the same, they are not created equal. They use different part numbers for the same model year. So the repair depends on the cluster part number itself because different part numbers, means they have different circuits boards, and different parts inside, and this includes the numbering of the capacitor locations inside. So the idea of "which capacitor to look for" depends on the particular circuit board version or part number you have. Incidentally, the "capacitor repair" fix you see on the web to repair the burned out cluster lights issue doesn't apply to the 1995 instrument cluster. It applies to the 1994 and earlier instrument cluster. Similarly, you can't put a 1997 cluster inside a 1995 ls400 because the blue plug on the cluster is a different size. So it's critical the part number of the cluster needs to be identified before you can repair or replace one. The 1995 ls400 could have an instrument cluster with part number 83010-50592 or 83010-50590 or 83010-50600 etc... Instrument clusters are not simply interchangeable with ones with different part numbers either, because the vehicle ECU is programmed to only work with the specific cluster part number that originally came with the vehicle.Also Lexus dealers are no longer replacing these because the part is no longer manufactured. However, you can get them repaired. Search the web for "lexus ls400 instrument cluster repair"Location of part #... This one is 83010-50600...217f8670-2ae4-4493-80dc-71022a4fddad.jpg
4/19/2021 3:29:48 AM • 1996 Lexus LS... • Answered on Apr 19, 2021 • 1,548 views
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Odometer quit worknghow to troubleshoot 1992 lexus ls 400

Check for a fuse if you didn't already.
3/10/2019 2:46:06 AM • 1992 Lexus Ls... • Answered on Mar 10, 2019 • 114 views
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Vehicle cant start fuel supply ok ingnition ok engine comprassion is ok

If oyu have spark, fuel and compression the engine should start.
1/2/2019 6:18:56 PM • 1996 Lexus LS... • Answered on Jan 02, 2019 • 318 views
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My egr wire harness plug that plugs into the egr,

Let me know if this helps. screen shot 2018-09-17 at 11.29.20 pm-4dqggl4oy441eg12cufqdvnl-4-0.png
9/18/2018 3:37:29 AM • 1994 Lexus LS... • Answered on Sep 18, 2018 • 184 views
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ResetHow do I reset 1993 LS400 ECU

You have two options: 1) remove the negative cable for about 5 minutes. 2) you can remove your main relay/fuse. Good Luck
4/18/2018 2:43:33 PM • 1993 Lexus Ls... • Answered on Apr 18, 2018 • 557 views
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How many quart oil is needed for LS'1998 LS 400 ?

how many quarts of transmission fluid is needed to change in a 1997 lexus ls 400
3/6/2018 11:48:29 AM • 1998 Lexus LS... • Answered on Mar 06, 2018 • 275 views
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