Reset Security System
#1
Lexus Test Driver
Thread Starter
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
I removed the EFI fuse to reset my CEL. But, now I can't unlock the car's door once I start the car and shut it down (with the key out of the ignition)...any ideas. I had this happen once before after removing the battery and re-installing but i can't remember exactly what I did it was something like sticking the key in the passenger door and then the drivers door or something like that to have the ECU recognize the key.
I can lock and unlock the door from inside too but that's without turing the car on, once the car has been turned on and back off i can't unlock the door once I remove the key. To unlock all doors I have to press the unlock button on the remote.
Any Idea's as to what I can do to solve this... Thanks in advance.
I can lock and unlock the door from inside too but that's without turing the car on, once the car has been turned on and back off i can't unlock the door once I remove the key. To unlock all doors I have to press the unlock button on the remote.
Any Idea's as to what I can do to solve this... Thanks in advance.
#3
Lexus Test Driver
Thread Starter
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Your best bet is to start a thread on the SC side of the forum : https://www.clublexus.com/forums/sc-400-300-6/
#4
Lexus Test Driver
Thread Starter
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Also, just realized I never updated this thread.
This is how I reset the security system each time after disconnecting the battery:
This is how I reset the security system each time after disconnecting the battery:
- Insert master key (non-remote master) into driver's side door.
- Remove key.
- Insert master remote key into driver's side door.
- Remove key.
- Insert master key (non-remote master) into ignition.
- Remove key.
- Insert master remote key into ignition.
- Remove key.
#5
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Also, just realized I never updated this thread.
This is how I reset the security system each time after disconnecting the battery:
This is how I reset the security system each time after disconnecting the battery:
- Insert master key (non-remote master) into driver's side door.
- Remove key.
- Insert master remote key into driver's side door.
- Remove key.
- Insert master key (non-remote master) into ignition.
- Remove key.
- Insert master remote key into ignition.
- Remove key.
Trending Topics
#10
Driver School Candidate
![Unhappy](https://www.clublexus.com/forums/images/icons/icon9.gif)
I just replaced the computer box in my car. Now, the security light came on and disabled the motor. Is there a way to reset it so I can start my car?. I can't wait to take it to the toyota dealer, they won't be able to get my car in until the end of next week. I really need to get my car back on the road before then, preferably, today, if possible. Is there anything that I can do to get it going?. Please Help!! Thanks.
#11
Moderator
![](https://www.clublexus.com/forums/images/ranks/rank-mod2.gif)
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
I just replaced the computer box in my car. Now, the security light came on and disabled the motor. Is there a way to reset it so I can start my car?. I can't wait to take it to the toyota dealer, they won't be able to get my car in until the end of next week. I really need to get my car back on the road before then, preferably, today, if possible. Is there anything that I can do to get it going?. Please Help!! Thanks.
I hope Lexus can give you an answer to your liking, but in the mean time please secure at least ONE master key paired to the ECU. Else the ECU is useless. Once you have the key in possession, follow the instruction of registering new keys [in your case it will be the old key]
Salim
The following users liked this post:
Angellove (05-25-17)
#13
Moderator
![](https://www.clublexus.com/forums/images/ranks/rank-mod2.gif)
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Yes with a master key you should be able to start/run and register another key.
Salim
Salim
#14
Driver School Candidate
Join Date: Jan 2020
Location: Alabama
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Also, just realized I never updated this thread.
This is how I reset the security system each time after disconnecting the battery:
This is how I reset the security system each time after disconnecting the battery:
- Insert master key (non-remote master) into driver's side door.
- Remove key.
- Insert master remote key into driver's side door.
- Remove key.
- Insert master key (non-remote master) into ignition.
- Remove key.
- Insert master remote key into ignition.
- Remove key.
#15
Lexus Test Driver
Thread Starter
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
I did a fair amount research on this when my 04 RX330 started doing the same thing. I got a lot of different solutions I tried this thinking there was no way it would be that easy after all I had read on it. I was wrong it worked great. You find truth in the simplest of answers
Thread
Thread Starter
Forum
Replies
Last Post
calgaryls4
LS460 / 430 / 400 / 600h Classifieds
1
11-06-09 09:44 AM