Question about 1993 Lexus Ls 400

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How do you reset the anti-theft system on a 1993 LS 400? I was charging the battery and when I reconnected the battery the alarm went off and won't reset.

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  • Lexus Master
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Try using a code reader to reset

Posted on Dec 29, 2013

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Posted on Jan 02, 2017

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SOURCE: 1997 ES 300 How to reset anti-theft system when car won't start

With the doors shut, insert the key into the drivers door lock. Lock and unlock the door 5 times. This should reset the system. If that doesn't work you should contact a qualified repair shop.

Posted on Mar 20, 2009

  • 38 Answers

SOURCE: HOW DO I RESET THE ANTI-THEFT

If its a factory installed radio and not an aftermarket radio, only dealerships can reset the radio for you. The reason for being is dealerships needs to be sure that his or her radios are not stolen.

Posted on May 18, 2009

jgwhomeequip
  • 1902 Answers

SOURCE: 1990 lexus ls 400 security system went off now

Your alarm is keep your system from starting. When the alarm system fails, you have 1 of two choices, if it is a after market alarm then just disconnect the alarm, if it is a manufacture alarm then you will need to take it to a company to have then replace the alarm or disconnect it. Doing so yourself you can hurt your vehicle more then help it

Posted on May 17, 2010

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1 Answer

How can i disarm the alarm system


Try this: pull off the battery cable and let the charge drain for 30 min or so. Unlock your doors with the key, then reconnect the cable and let everything reset.You could also pull relay #14 (see photo) which is for the anti theft system. Or the fuse.

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1998 Gmc Yukon wont start due to Anti Theft alarm system how do I get Yukon to start again


Maybe by disconnectting your battery and reconnectting, you might be able to reset system.

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1993 Buick Park Avenue we had a dead battery so we removed and charged it. Now the Car won't start and when I put key in the ignition the security light starts flashing


Any car with a Factory Anti-Theft System does this whenever battery power is lost. If your owners manual doesn't address this, you will have to contact a GM Dealer to get the system reset. Sorry!

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Rx8 2008-My battery was dead after being stored for 5 months. I did not not disconnect the battery (I know I should have). I had my battery jumped with my husband's car. As soon as I connected the cables...


You should have disconnected the battery and fully charged it before starting the car.
The low voltage may have damaged some of the electronic components in the alarm system.
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it sounds like the anti-theft module needs to be reset so it won`t go off when it shouldn`t.the module thinks the car is being stollen as it went into anti-theft mode and needs to be reset.usually the light for this problem(gross vacume leak) will reset on its own when the computer goes through its test procedure for the evap system and detects no fault.

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1989 300e. The anti theft alarm went off while driving the car now the engine won't start. We shut the car off and locked and unlucked the doors several times. The alarm reset and we began driving again. A...


This is the problem due to your anti theft alarm system. You have not mentioned which brand of anti-theft alarm system you have? Anyhow, most of the systems have a reset switch inside the kit, open the kit and on the main board, u will find the reset button, press that and hold for 5 sec, the system will be reset. Otherwise, there are 2 or 3 fuses with the wiring of kit, remove those fuses and ur engine will wake up but the anti-theft system wont work then, hope this will solve the problem

Sep 19, 2009 | 1989 Mercedes-Benz 300-Class

1 Answer

HOW DO I RESET THE ANTI-THEFT


If its a factory installed radio and not an aftermarket radio, only dealerships can reset the radio for you. The reason for being is dealerships needs to be sure that his or her radios are not stolen.

May 09, 2009 | 1993 Lexus Ls 400

1 Answer

Truck won't start something to do with Anti-Theft tried removing positive cqble to reset alarm nothing, possible wire off Anti Theft Unit Truck drove fine parked for one hour and went to leave, the en


not positive but look in owner manual for a fuel pump reset button i had this problem at one time and that fixed it it is usualy under the dash area somewhere on the drivers side or in a kick panel (decorative cover on the side firewalls inside the cab)....good luck i hope this helps!

May 04, 2009 | 1993 Ford F150 SuperCab

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