Lexus LS 400 - Popular Questions, Answers, Tips & Manuals

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 ..

It is on the Club Lexus site https://www.google.com/search?q=1995+Lexus+LS400+vacuum+line+diagram ..

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

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 ..

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.

you dont

https://www.allcarmanuals.com/factory-service-manual-103-Lexus-LS400-XF10-XF20.html

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

Check for a fuse if you didn't already.

It may be in the same location as earlier models http://www.lexls.com/tutorials/EFI/fuelfilter.html

You have two options: 1) remove the negative cable for about 5 minutes. 2) you can remove your main relay/fuse. Good Luck

Doubtful it's an intermittent electrical problem. Far more likely you've got a wheel speed sensor issue. Since VSC gets all it's information from the ABS system, start by pulling the trouble codes. I bet you'll see an ABS code. Read this post ABS What are ABS brakes Ricks Free Auto Repair Advice

There are 1 or 2 large fuses in the main fuse block near the battery. 100 amp and 150 amp usually. Pop off the clear plastic tops and check those. Most times those will require separating the block to unscrew the bolts that hold them in.

When your Trac light flashes, it is an indication that your transmission is sending diagnostic codes. You can visit your local parts store, and see if can read the codes for your. GL.

All kinds of repair manuals are available here.Have a look of this may be you will get something useful. They also provide discount 1991 Lexus LS400 Service Repair Manual Download

Now, I'm not saying this is a fact, but my TH700R4 trans did that very thing, wouldn't come out of third. And with no 3rd it won't go to overdrive. I rebuilt the trans and found the overdrive drum was all scarred and caused the limp home thing to happen, third gear was as high as it would go. I suggest you have the trans checked out by a professional trans shop. As for it being a bear to start, that's a faulty temperature sensor. If it's not functioning, the computer doesn't know to put it into cold start mode, which increases the throttle speed and puts more fuel in the engine for starting when cold. Like a automatic choke system in earlier vehicles.

Get the code read that's what the light is for auto parts store do this for free.

sensor 1 is the sensor located before the catalytic converter and bank 1 is the side of the engine with cylinder #1 so if i'm correct and you have a V-6 that would be the rear of the engine by firewall and the sensor would be in the exhaust manifold

Let me know if this helps.

Check the ignition switch, there is battery voltage to the fuel pump and ignition, because the engine starts with switch in the start position, now check the above with the switch in the run position, If there is no voltage replace the switch.