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Old Feb 12, 2022 | 06:29 AM
  #16  
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Default Access System with Elec. Key malfunction Error

Not sure if anyone can help me solve this issue. After a week of not driving my 2017 IS I go to start it & it won’t crank. I even changed battery & remote battery still nothing. Hoping to avoid towing to dealer. Any suggestions are Appreciated

are Appreciated
Old Feb 12, 2022 | 06:39 AM
  #17  
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Originally Posted by Nilo955
Not sure if anyone can help me solve this issue. After a week of not driving my 2017 IS I go to start it & it won’t crank. I even changed battery & remote battery still nothing. Hoping to avoid towing to dealer. Any suggestions are Appreciated

are Appreciated
Maybe a dumb suggestion, but could the key fob battery be dead? Try a second key?
Old Feb 12, 2022 | 06:44 AM
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Originally Posted by mtucci3
Maybe a dumb suggestion, but could the key fob battery be dead? Try a second key?
not a dumb suggestion , that was the first thing I did I changed the battery in both key fobs. Then I put in a new car battery.
Old Feb 12, 2022 | 06:45 AM
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Originally Posted by Nilo955
not a dumb suggestion , that was the first thing I did I changed the battery in both key fobs. Then I put in a new car battery.
Does she even "click" when you press the start button? Any response at all?
Old Feb 12, 2022 | 06:49 AM
  #20  
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Originally Posted by mtucci3
Does she even "click" when you press the start button? Any response at all?
No clicking or anything.
Old Feb 12, 2022 | 06:50 AM
  #21  
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Originally Posted by Nilo955
not a dumb suggestion , that was the first thing I did I changed the battery in both key fobs. Then I put in a new car battery.
Try this. Hold your key fob to the start button (touching) and see if the vehicle will allow a start cycle. This is what you would do if your fob battery dies. There are a few other posts on the forum about similar issues, but varying different models.
Old Feb 12, 2022 | 06:53 AM
  #22  
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Originally Posted by mtucci3
Try this. Hold your key fob to the start button (touching) and see if the vehicle will allow a start cycle. This is what you would do if your fob battery dies. There are a few other posts on the forum about similar issues, but varying different models.
yeah I tried that also still nothing. I’ve been searching for similar issues and trying suggestions I’ll keep looking though. Would hate to have to tow it to the dealer. Thanks bro
Old Feb 12, 2022 | 05:55 PM
  #23  
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Unohook the battery starting with the negative terminal first put a towel or something around it so it won't contact anything and the same with the positive. Then turn on hazard lights to help drain the capacitor in the ecu. They won't be one or maybe will flash for a second or two but leave the button engaged for about 10nseconds. Finally turn that switch back to the off position and let it sit still disconnected from the battery for 30 min. Reconnect battery see what happens.
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Old Feb 12, 2022 | 08:31 PM
  #24  
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Originally Posted by Armadous1
Unohook the battery starting with the negative terminal first put a towel or something around it so it won't contact anything and the same with the positive. Then turn on hazard lights to help drain the capacitor in the ecu. They won't be one or maybe will flash for a second or two but leave the button engaged for about 10nseconds. Finally turn that switch back to the off position and let it sit still disconnected from the battery for 30 min. Reconnect battery see what happens.
@Nilo955 I'd give a shot to what @Armadous1 is suggesting as he's a Lexus tech.
Old Feb 13, 2022 | 12:44 AM
  #25  
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Originally Posted by Armadous1
Unohook the battery starting with the negative terminal first put a towel or something around it so it won't contact anything and the same with the positive. Then turn on hazard lights to help drain the capacitor in the ecu. They won't be one or maybe will flash for a second or two but leave the button engaged for about 10nseconds. Finally turn that switch back to the off position and let it sit still disconnected from the battery for 30 min. Reconnect battery see what happens.
I’ll try that thanks
Old Feb 13, 2022 | 06:14 AM
  #26  
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Originally Posted by Nilo955
I’ll try that thanks
Let us know. I'm interested to see what could be going on here!
Old Feb 13, 2022 | 08:42 AM
  #27  
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Originally Posted by mtucci3
Let us know. I'm interested to see what could be going on here!
Realized there’s no way for me to get the hazard lights to come on with disconnected battery
Old Feb 13, 2022 | 09:03 AM
  #28  
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Originally Posted by Nilo955
Realized there’s no way for me to get the hazard lights to come on with disconnected battery
That’s the point. Remember what he said, that the lights probably wouldn’t even flash. It’s just to drain the very last bit of juice from the ECU. You won’t see them flash, just leave the switch pressed in and follow his instructions from there.

Nick
Old Feb 13, 2022 | 11:15 AM
  #29  
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Originally Posted by CLass of 1
That’s the point. Remember what he said, that the lights probably wouldn’t even flash. It’s just to drain the very last bit of juice from the ECU. You won’t see them flash, just leave the switch pressed in and follow his instructions from there.

Nick
You’re right I read it wrong. Will try later once home
Old Feb 14, 2022 | 07:33 AM
  #30  
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Originally Posted by CLass of 1
That’s the point. Remember what he said, that the lights probably wouldn’t even flash. It’s just to drain the very last bit of juice from the ECU. You won’t see them flash, just leave the switch pressed in and follow his instructions from there.

Nick
Didn’t end up working. I messaged him so maybe he has more suggestions before I tow it to Lexus



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