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How to disarm factory alarm in 1999 Lexus es300

Car goes dead a lot for many years. Each time it is jumped we are told by the roadside service that they see this all the time and disconnecting the factory alarm system alleviates the dead battery problem . I just put in a brand new battery and now want to disconnect the factory alarm system. How do I do that? The last guy said something about the wires being in a black box under the dash. Do I have to pull off the whole dashboard (don't know how to do that), or can I lay down and see it under there somewhere?

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

leethedeuce
  • 4472 Answers

SOURCE: lexus alarm keeps going off unless you disconnect battery model g300 1996

I would say you have two options, You can take it to the dealer and have it disconnected, or you can go to an aftermarket car stereo/alarm store they will install an aftermarket alarm and disable your stock one at the same time, for probably about as much as the dealer would charge to just disable it. First just call the dealer to get a quote on how much that would cost, and then call the alarm place and get a quote.
Thanks,
Lee

Posted on Jul 30, 2008

motor1258
  • 6674 Answers

SOURCE: battery goes dead on 2004 pacifica

There is obviously a draw from somewhere, and if your dealer doesn't have a mechanic who knows how to narrow it down to the circuit causing the problem, then I'd question there ability. With that said, when all else fails, you simply remove negative connection off battery first, then positive. Take a 12 volt test light & secure one end to the + clamp or connector, and the other end to the battery+ post. Now connect your negative back up to the battery as it was. If that test light, lights up, there is a draw. It will be brighter, the more draw there is. Your going to have some, just from your radio memory alone, but now comes the fun part. All you do is pull the fuses one at a time, if light goes out, or dim's you've found a draw. When you have a real hard one to narrow down, you make sure you know where they all go back to, whether by your map at fuse box, or your own notes, and you pull them all out, and light should go out for sure, if not, there is another circuit or panel, or relay drawing the current. If it goes out, you start putting them back in one at a time, and when the light comes back on bright, you found the circuit. Mark that one down, pull the fuse back out, light off, now do the rest that you haven't checked yet, just to see if there is more than one draw causing the problem, if there is, mark it down, pull it out & continue on until all done. Now you/they narrowed it down or isolated the circuit causing the problem.

Posted on Dec 30, 2008

  • 740 Answers

SOURCE: Need to turn the valet switch off On 1999 Nissan Maxima

Look for alarm Brain box and look for wires coming out black and red going to valet switch. to turn valet on turn ignition in ON position and press-switch or flip depending on the type of switch. If it a basic alarm just disconnect the main wiring harness to alarm box- unplug and the car should start. Good luck and thanks for using FIX YA

Posted on Jan 27, 2009

chrischronic
  • 235 Answers

SOURCE: 2002 Ford Explorer "Door Ajar" stays on and Alarm frequently goes

if the door ajar light is on then get a can of PB BLASTER at your local parts store and spray all the door latch assembleys really good and open and close each door about ten to fifteen times this will usually free up the ajar switch

Posted on Feb 16, 2009

  • 160 Answers

SOURCE: I can't disconnect my '98 toyota camry car alarm.

BEHIND THE DRIVERS KNEE PANEL IF IT IS FACTORY IT SHOULD BE JUST BEHIND THE DUCT WORK YOU CAN ALSO JUST UNPLUG THE PIGTAIL HARNESS IN BETWEEN THE IGN. SWITCH AND THE ALARM (PLEASE RATE THIS)

Posted on Apr 19, 2009

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