Question about 1990 Lexus LS 400

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How can i stop a atd killswitch in a from turning on when driverside doorlock doesnt work and only have 1 key to car and no alarm clicker either

Use passenger door to for key entry.tried to ground out alarm wires,priced rekeying from salvage yard,locksmith also seemes to high prce to take apart door lock said he can make a key but it wont function unless its chipped,drove it in 911 only cases and left unlocked,

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  • 103 Answers

Most car alarm and stereo installers may be able to help you. I took apart the driver's door lock on one vehicle, removed the tumblers and reassembled it but eventually someone messed with it and I was stuck

Posted on Jan 28, 2015


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Posted on Jan 02, 2017

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SOURCE: After alarm goes off, all electrical works except car won't start

hi there
from what it sounds to me is that the alarm is still in anit theft mode
i had this happen to my vehicle

one thing you can try is lock all the doors try and unlock from the passenger side make sure that all the lock come up to the top where they should be
then try it

if that does not work then lift up the rear of the car like it was being towed and it should reset the alarm
short of that you will have to have alarm shop come to you

Posted on Mar 09, 2009

  • 496 Answers

SOURCE: The clicker will not lock or unlock the front

It sounds like your remote needs a new battery.
Your user manual should tell you what type... else, remove the old battery and find an equivalent.
Hope this helps... Good luck.

Posted on Oct 13, 2009

  • 166 Answers

SOURCE: 1990 lexus ls 400 security system went off now

Okay you may want to check to see if the sensor on door lock cylinder hasn't fallen off from the lock itself. Pull of the door panels and check the wires at the door lock cylinder. Hope this helps.

Posted on Mar 25, 2010

  • 4793 Answers

SOURCE: car alarm went off while unlocking the door, now

you need to reset alarm/immobiliser.lock car with remote, hold button down for 30 secs,then press/hold down unlock button,should reset.another way is with key in ignition/turned on, press alarm button down and hold for 30 secs.this resets
systems vary..depending on market.

Posted on Mar 30, 2010

  • 518 Answers

SOURCE: I have a 2003 Lexus

A seized up door lock actuator. You can try freeing it up by spraying a good penetrating oil, my favorite is PB Blaster. If it wont free up you will need to replace it.

Posted on Jan 24, 2011

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I have a 2006 Silverado ext cab. The passenger side door was missing the lock cylinder when I bought it (used of course) The passenger side door also doesn't open from the outside but the inside latch...

I just looked on e-bay and discovered you will be needing to buy the outside door handle which comes with the lock cylinder.
You can probably buy one of these from a Chevy or GMC truck dealer, or go on-line and check with e-bay or others to get one.
You can also find one at a salvage yard, but there you may not get a key with it.
A locksmith can cut you a key, but a used handle and a "locksmith-key" may cost you more that a new one!
The handle and lock are held on with a couple of screws inside the door shell.
Be blessed.

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there is a chip inside your car key
some times gets damage or the car computer gets damage and no longer recognize your key chip
this causes the anti theft system to prevent the fuel injectors to open and the engine will not start because has no gas.

the security light stain on is your hint of what is going on.

I had the same problem on a 99 Nissan Maxima but i got the car running again what you need to do is replace the engine computer and then call a locksmith to reprogram your key to be recognize by the new computer i when to a lot of pain and suffer to get this solve.

before changing any thing make sure the plastic part of the key is not broken, if it is call your locksmith to make you a new one before changing any thing.

NOTE do not use a computer from a salvage yard unless you get to see the actual car it came from

if it came from a car than has the body in one piece do not buy it

its real hard to diagnose this problem and

chances are it came there because of the same problem you have.

if the car looks like it was in a crash the computer is more likely to be good.

but its always best to get it rebuild or brand new if you can.
after you change the computer call the locksmith to get you car key reprogram.

Do not use a computer from a 98 or 2000 because they will not work no mater what the salvage yard tells you they are to make money not to help you so it has to be 99 only.

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