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Ron
Ron, ASE Certified Technician
Category: Lexus
Satisfied Customers: 33448
Experience:  35 years working as an ASE certified tech.
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My Lexus rx350 2009, door ajar light on, Which fuse should I

Customer Question

My Lexus rx350 2009, door ajar light on
JA: Have you checked the fuses? Have you checked the door switches?
Customer: Which fuse should I check, the door switches all working.
JA: What is the model of your '09 Lexus?
Customer: Rx350
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: Disconnect negative battery terminal and recon after one minute
JA: Anything else you want the mechanic to know before I connect you?
Customer: Door ajar light on and cant lock the door by remote, only with key
Submitted: 18 days ago.
Category: Lexus
Expert:  Ron replied 18 days ago.

Hello. My name is ***** ***** I am happy to assist you today. Give me just a moment to review your post, and I'll be right back with the help you need.

Expert:  Ron replied 18 days ago.

Hello, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here. The most common cause for the door ajar light to remain on is in most cases a bad door ajar switch, in order to determine which door switch is failing you are going to need access to a scan tool to scan the system and see which door is settling a fault code.If you can get this done and post back with the code I can direct you as to the needed repair.

Customer: replied 18 days ago.
Hi Ron, I noticed the back door courtesy SW stay OFF even I open up the back door. Will this cause door ajar light on?
Expert:  Ron replied 18 days ago.

That is possible if the switch is bad. You should be seeing a reading from all switch with the doors open.

Customer: replied 18 days ago.
I check others door well, all turning off & on when opening the door. Expect back door stay off no matter how
Expert:  Ron replied 18 days ago.

That may very well be your problem . Would have a look at that switch.

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