99 Lexus gs300 security light on car won't crank!!
#1
Driver School Candidate
Thread Starter
99 Lexus gs300 security light on car won't crank!!
well it started about a month back I tighting my battery terminals and it stopped and all of sudden it started back tonight. Does anybody know what it could be? It randomly does it like I can put the key in and the light be on and I pull it out and put it back in and it won't be on but then sometimes it will just stay on
#3
Driver School Candidate
Thread Starter
no remote start my buddy is suppose to bring his scanner by also this stuff didn't start till after I put my double din radio in if that helps out. It's wierd first Time you put the key in it runs then after you cut it off it may work or it may not
#4
Driver School Candidate
iTrader: (2)
I have had this intermittent issue as well since I bought my GS two years ago. But mine is a bit funny. I have to keep the car on and running for a certain amount of time, otherwise if I shut the car off and attempt to turn it on, the security light remains on when inserting the key.
Theres been times where I am sitting in my car(cold start) and have to run inside because I forgot something, so when I shut it off and come back, it wont come on. So I sit there and wait. and wait... I have also been stranded at gas stations close to home. But at this point I understand my car, so I know when it may or may not happen most of the time. I also avoid driving short distances. Unless I had already driven the car a good while prior. I have changed my key and still have problem every so often. I was told it may be my immobilizer.
Theres been times where I am sitting in my car(cold start) and have to run inside because I forgot something, so when I shut it off and come back, it wont come on. So I sit there and wait. and wait... I have also been stranded at gas stations close to home. But at this point I understand my car, so I know when it may or may not happen most of the time. I also avoid driving short distances. Unless I had already driven the car a good while prior. I have changed my key and still have problem every so often. I was told it may be my immobilizer.
#5
Driver School Candidate
Thread Starter
I have had this intermittent issue as well since I bought my GS two years ago. But mine is a bit funny. I have to keep the car on and running for a certain amount of time, otherwise if I shut the car off and attempt to turn it on, the security light remains on when inserting the key.
Theres been times where I am sitting in my car(cold start) and have to run inside because I forgot something, so when I shut it off and come back, it wont come on. So I sit there and wait. and wait... I have also been stranded at gas stations close to home. But at this point I understand my car, so I know when it may or may not happen most of the time. I also avoid driving short distances. Unless I had already driven the car a good while prior. I have changed my key and still have problem every so often. I was told it may be my immobilizer.
Theres been times where I am sitting in my car(cold start) and have to run inside because I forgot something, so when I shut it off and come back, it wont come on. So I sit there and wait. and wait... I have also been stranded at gas stations close to home. But at this point I understand my car, so I know when it may or may not happen most of the time. I also avoid driving short distances. Unless I had already driven the car a good while prior. I have changed my key and still have problem every so often. I was told it may be my immobilizer.
Trending Topics
#9
Lexus Champion
well it started about a month back I tighting my battery terminals and it stopped and all of sudden it started back tonight. Does anybody know what it could be? It randomly does it like I can put the key in and the light be on and I pull it out and put it back in and it won't be on but then sometimes it will just stay on
#10
Driver School Candidate
Thread Starter
#11
Driver School Candidate
Thread Starter
#12
Have you got a spare key you can try? If yes, does the problem happen on that key too?
As others have suggested, get a scantool and see if there any codes regarding the security system.
It seems like a problem with the transponder key amplifier
As others have suggested, get a scantool and see if there any codes regarding the security system.
It seems like a problem with the transponder key amplifier
#13
Driver School Candidate
Thread Starter
well just checked there isn't any codes which is weird and it does it with the valet key also I have the wallet key and it does it isk I'm lost and this really sucks!! How do you change the key transponder amplifier?
The following users liked this post:
Kitty51 (05-08-22)
#14
Driver School Candidate
Thread Starter
It's weird cause once you crank it once it will run then you cut it off and put the key back in the ignition sometimes it will run sometimes the lights on and won't let it
#15
Instructor
You need techstream to read the body codes. You most likely have B2796 No Communication In Immobilizer System
You might just need to get your key reprogrammed. Have you tried another key?
You might just need to get your key reprogrammed. Have you tried another key?