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04 LS430 smart key problem

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Old Apr 2, 2013 | 12:24 AM
  #1  
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Default 04 LS430 smart key problem

Hey everyone..

Long story short, my battery took a dump yesterday. Got it charged and it's back in the car. Only problem now is that the smart key doesn't work anymore.

I cannot lock/unlock the car. Also I could only fire up the car with the key in the ignition. Without the key, it tells me " keys not detected, ". I have also double checked the battery on the remote as well as the smart key disable/enable function located on the bottom of the dash.

I tired searching but no luck.. Anybody can lmk thanks!!!
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Old Apr 2, 2013 | 07:52 AM
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Under your steering wheel (if you haven't seen it before, stick you head under) there are two buttons.
1. for TPS reset
2. to acticate your smart key.

Try that.

Good Luck!
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Old Apr 2, 2013 | 08:18 AM
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^^ I have already tried that. Thanks
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Old Apr 2, 2013 | 08:46 AM
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Did you make sure that the cancel switch button is in the out position and not the pushed in position?
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Old Apr 2, 2013 | 09:55 AM
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^^ yes. When the smart key button is in the disable position. The key light will not track in the car. Once it is enable the key light will flash, tracking the key.
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Old Apr 3, 2013 | 03:55 PM
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Any other advice? Anybody know if there is any fuses that is associated to the smart key/smart access?
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Old Apr 6, 2013 | 12:15 AM
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I ran into the same problem on my s500 . I believe you must have the key in the ignition and hold the lock button contiously until all door unlock . This is the initialze procedure that most factory used when a battery goes out on the key ,it also was the same for my e38 740 hope this help ..
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Old Apr 13, 2013 | 12:24 AM
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on safecar.gov (NHTSA) there's an entry for the 2004 LS

Service Bulletin No.: 00304
Component(s): EQUIPMENT
NHTSA ID Number: 10008399
All Products Associated with this Service Bulletin
Vehicle MakeModelModel Year(s)

LEXUSLS 4302004

Details
0 Associated Documents
Manufacturer: TOYOTA MOTOR CORPORATION
SUMMARY:
REPAIR MANUAL SUPPLEMENT:SMART KEY REGISTRATION. *MJ
Not sure if it would be helpful or not since I can't actually see the TSB. Maybe your dealer could tell you.
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Old Apr 25, 2014 | 01:49 PM
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Default Thank you

Originally Posted by choiceISF
Under your steering wheel (if you haven't seen it before, stick you head under) there are two buttons.
1. for TPS reset
2. to acticate your smart key.

Try that.

Good Luck!
It fixed mine. Thank you so much
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