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Just replaced the battery in rx350 and when we connect the…

Customer Question
***** *****. just replaced...

***** *****. just replaced the battery in rx350 and when we connect the leads, the alarm goes off and wont stop. help!!

Mechanic's Assistant: Thanks. Can you give me any more details about your issue?

We have to disconnect one of the leads in order for the horn to stop.

Submitted: 2 years ago.Category: Lexus
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Answered in 49 minutes by:
1/20/2016
Lexus Mechanic: Chris (aka - Moose), Technician replied 2 years ago
Chris (aka - Moose)
Category: Lexus
Satisfied Customers: 51,677
Experience: 16 years of experience
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Welcome, I'm Chris (aka Moose). No experts here are Just Answer employees, we do not get a paycheck or benefits from JA. We are independent contractors, only paid when you rate our answer.

If this is not an aftermarket alarm. You should be able to connect the battery, unlock the doors with the remote fob, then insert the key into the ignition and turn it to the run position and the alarm should go off and allow starting.

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Customer reply replied 2 years ago
It is a push start, so I cannot insert a key to start.
Lexus Mechanic: Chris (aka - Moose), Technician replied 2 years ago

Using the fob to unlock the door and placing the fob in the access hole in the car then pressing start should stop the alarm.

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Customer reply replied 2 years ago
That still didn't work.
Lexus Mechanic: Chris (aka - Moose), Technician replied 2 years ago

Is there any kind of aftermarket electronic on the vehicle. If not then we most likely are going to need a scan tool to diagnose this. What year model is the vehicle so I can double check.

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Customer reply replied 2 years ago
No aftermarket electronics. It is a 2011 Lexus rx350
Customer reply replied 2 years ago
2011 Lexus rx350.
Lexus Mechanic: Chris (aka - Moose), Technician replied 2 years ago

I see no other steps to try without a scan tool. I will opt out.

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Chris (aka - Moose), Technician
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