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2011 Infiniti g37x sedan. Hazard lights won't turn off.

Customer Question
Engine running or not....
2011 Infiniti g37x sedan. Hazard lights won't turn off. Engine running or not.
Submitted: 1 year ago.Category: Infiniti
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Answered in 41 minutes by:
11/17/2016
Infiniti Mechanic: Jay, Certified Infiniti Technician replied 1 year ago
Jay
Jay, Certified Infiniti Technician
Category: Infiniti
Satisfied Customers: 20,952
Experience: 20+years, Nissan and Infiniti experience and currently now working for a Infiniti Dealer
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Hello my name is ***** ***** thank you for your question.

Are you the original owner of the car? Let me know please..

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Customer reply replied 1 year ago
Second owner. Owned for 3 years
Customer reply replied 1 year ago
I'll be back in 10 mins
Infiniti Mechanic: Jay, Certified Infiniti Technician replied 1 year ago

ok.. The only thing that can cause the hazards to flash the way you are describing is if the car has a after market alarm. They install after market alarms on these cars in order to have remote start work. You may not know it has this since you are the second owner. But if you do have it, all you would need to do is go to a alarm shop to have it reset. Then you would be able to use the remote start feature. Other wise, the after market alarm would need to be unplugged and disabled.

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Customer reply replied 1 year ago
No alarm. New battery 3 weeks ago. Unmolested car. Original everything. Had no issues until today
Infiniti Mechanic: Jay, Certified Infiniti Technician replied 1 year ago

Normally the battery could set it off.

Do you hear clicking on and off like the Hazards are on?

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Customer reply replied 1 year ago
Car starts normally. Clicks and flashes.
Infiniti Mechanic: Jay, Certified Infiniti Technician replied 1 year ago

Does the clickingredients sound the same as the directionals?

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Infiniti Mechanic: Jay, Certified Infiniti Technician replied 1 year ago

Sorry, damn spell check.

Does the clicking you are hearing sound the same as the directionals? like from the same spot?

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Infiniti Mechanic: Jay, Certified Infiniti Technician replied 1 year ago

If you don't have a after market alarm, I would check the hazard switch. if not the switch, the it has to be the Body Control Module , also known as the BCM

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Infiniti Mechanic: Jay, Certified Infiniti Technician replied 1 year ago

There is no flasher relay. it is all controlled by the BCM

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Customer reply replied 1 year ago
Did my research and understand the bcm controls the flashers. Could a dealer just reprogram the bcm per the service bulletin that has been issued or do I need a new bcm.
Customer reply replied 1 year ago
Is there a wiring diagram I can acquire? I would be able to troubleshoot if I had one.
Infiniti Mechanic: Jay, Certified Infiniti Technician replied 1 year ago

There is no bulletin on this issue. If there is any updates, it would not fix this issue.

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Infiniti Mechanic: Jay, Certified Infiniti Technician replied 1 year ago

I can share the wiring diagram if you are familiar with how to do electrical diagnostics. Hang on

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Infiniti Mechanic: Jay, Certified Infiniti Technician replied 1 year ago

Just let me know if this is a coupe or sedan?

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Customer reply replied 1 year ago
ITB12-024 addresses the bcm issues. It is a sedan. Earlier today the car would start intermittently. It also was indicating steering wheel lock light on dash. That has somehow fixed itself. That's why I didn't add that part. That issue is what lead me to the service bulletin.
Infiniti Mechanic: Jay, Certified Infiniti Technician replied 1 year ago

That is for the ignition. Yes, that update could be done for that. But if this issue happens again, you could have a Steering lock control unit going. That is more common.

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Infiniti Mechanic: Jay, Certified Infiniti Technician replied 1 year ago

Getting the wiring diagram for you .. hang on.

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Customer reply replied 1 year ago
A little background on myself: I am an aircraft avionics technician. Well versed in troubleshooting wire diagrams. If this were a 737 auto pilot issue it would be fixed by now.
Infiniti Mechanic: Jay, Certified Infiniti Technician replied 1 year ago
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Infiniti Mechanic: Jay, Certified Infiniti Technician replied 1 year ago

Cool.. This type of issue would be much easier to check with a scanner. You can monitor the switch signal if you log into the BCM

That is the wiring diagram and I included some extra for you on this system

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Customer reply replied 1 year ago
Why is it called a multifunction switch? What are the other functions besides turning on hazards?
Infiniti Mechanic: Jay, Certified Infiniti Technician replied 1 year ago

They call the directional switch the multi-function switch

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Infiniti Mechanic: Jay, Certified Infiniti Technician replied 1 year ago
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Customer reply replied 1 year ago
I fear there is nothing I can do without scanner for bcm
Infiniti Mechanic: Jay, Certified Infiniti Technician replied 1 year ago

That is very likely.

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Customer reply replied 1 year ago
The crazy thing is i will pay more per hour at dealer than I charge for working on 60 million dollar airplanes.
Infiniti Mechanic: Jay, Certified Infiniti Technician replied 1 year ago

I hear ya . but you know what it is like not to have the right tools for the job

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Customer reply replied 1 year ago
As soon as this is fixed I'm trading in for Audi. I have vag com that will scan all the modules. I have two Audi s-4's and they are awesome. Infinit was to up until today. This is nonsense what's going on.
Customer reply replied 1 year ago
Right tools is right. Sucks having the ability to comprehend and not have the right tools to fix.
Customer reply replied 1 year ago
I'll leave you alone for now. I will update you if you like on fix for this issue
Infiniti Mechanic: Jay, Certified Infiniti Technician replied 1 year ago

I agree. You don't want to spend a ton for the tools either. Tools cost enough as it is.

If you have any more questions on this, please feel free to ask.

If not, and you're satisfied with my help, please Rate me. That is how I get credit for my work. I hope I have provided you with Excellent Service.

Thanks Jay!

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Customer reply replied 1 year ago
Jay here was the fix. I brought to dealer for them to tell me what I already knew. It was the bcm. 975 fix they said. I told them to give me car back. I bought a used bcm for 65.00. During removal install I noticed some water on one of the upper connectors. I installed new bcm and needless to say the car wouldn't start. So I was going to put old bcm next to new just to get it to dealer. Being a genius that I am I took old bcm apart to see if water had damaged circuit board. I found that the water had probably been there a while due to the white powder "ei: corrosion" on some of the connections of the computer chips. I took a toothbrush and cleaned all the corrosion off and reinstalled old bcm. That action had fixed the problem!!!!!!!!! Now I have a spare bcm. I also blew out drains for sunroof and hopefully that solves the water intrusion.
Infiniti Mechanic: Jay, Certified Infiniti Technician replied 1 year ago

I am glad you got the problem resolved. It sounds like there was some water intrusion. You may want to check the harness where it snaps into the fire wall area under the wiper cowl on the passenger side. If not secured or if they ran a wire through it, that would allow water to come in.

Other wise, you may have had a flood issue.

As for that used BCM, that won't work unless you program the keys

If you have any more questions on this, please feel free to ask.

If not, and you're satisfied with my help, please Rate me. That is how I get credit for my work. I hope I have provided you with Excellent Service.

Thanks Jay!

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