Lexus Troubleshooting Questions? Ask a Lexus Expert
Just to clarify you're saying that when you turn the key to the start position of the red security like continues to flash? The engine cranks over but it will not fire up? Is there a flash pattern to the security light? In other words couple flashes a pause then 1 flash? Do you have any other keys to try? Do you have a code reader to see if there any malfunction codes set in the computer?
I'm not sure whether you said you had an extra key or not it looks like you said unfortunately but then you didn't answer. Here's the bot***** *****ne. The security light flashes because it doesn't recognize the chip in the key. This uses an immobilizer system. When you insert the key into the ignition lock cylinder the security light must go out. If it doesn't it means that the key was not recognized and it will shut down the injectors and the spark to the engine. It will still crank over it just won't fire up. This normally will set a code in the engine computer indicating a problem with the immobilizer system. If your code reader does make that determination and spits out that code number post it back here I'll check into it further otherwise it looks like the immobilizer chip has failed. Let me know what you find when you get there to the car. Just simply post back here as you have been.
I can't cancel the question. I have given you the information as to why the vehicle is not starting if it is beyond your abilities to repair I understand but I spent the time to tell you what's going on with the vehicle I would appreciate being paid for my time and information. I am still available once you visit the mechanic to give you a second opinion on what's going on also..
With all due respect did you not see my last reply previously explained to you about the immobilizer system and why the immobilizer light flashes when you insert the key? The reason why your vehicle is not starting is because the immobilizer chip is not being recognized 90% of the time this means the key is bad. The system is very complex and requires a special scan tool to access the information to either reprogram a key or test to see if your key is communicating with the transponder ECU. I fail to see how that is not telling you what's wrong with your vehicle. I'll make you a deal you find out from the shop and if they concur what I'm telling you then my information is accurate and correct without further diagnosis from you. That you had a code reader and would check for codes in the computer. My guess is you find a 2000 series code which indicates a problem with the immobilizer system. I.e. possibly a bad key did you not check it for codes?
As I told you I cannot cancel the request you need to contact the moderators.
You have not been charged for anything the only thing you have done this made a deposit to your just answer account. You don't need to cancel the account you can save it for later use if you would like but you still would have to contact the moderator/customer service if you want your deposit back you have not paid me for anything. Have a nice day. No need to reply to me any further.