Key Fob don't work

cooltoy · 11-12-2020, 02:24 PM

Looks like you have figured out a way to use your fob. Life is good again.

SouthArk370Z · 11-12-2020, 02:46 PM

Quote:

Originally Posted by brainrain

In fobgina it works perfectly.
... So I test today, buttons (unlock/lock) on keyfob doesn't work, I pressed 5 seconds on switch button of the driver side door and pressed again just once, it's working fine.
I can unlock/lock with buttons on keyfob (even when I am 10m (33ft) away) ... keyfob works perfectly but it only works for a few minutes or a few hours .... But when I take my car after work or restaurant, keyfob doesn't work. ...

Sounds like it might be one of those weird problems that can be caused by a weak battery. I'd try putting the battery on a charger overnight and see what happens.

brainrain · 11-13-2020, 07:42 AM

Quote:

Originally Posted by SouthArk370Z

Sounds like it might be one of those weird problems that can be caused by a weak battery. I'd try putting the battery on a charger overnight and see what happens.

I already do this, I buy a new battery "Varta D47 12 V 60Ah 540 Amps" on Amazon. I had put the battery to charger overnight by this charger https://www.amazon.fr/InThoor-Intell...e%2C158&sr=1-4
I already test with another battery of my friend. The problem is always present

Keyfobs batteries are new (duracell CR2032).

This problem occurred since the old battery died. Before it worked correctly.
My car is from Germany and for register this car in France, I needed to wait 1 month so I didn't drive my car during this time...
the old battery was died, so I changed to a new battery and since then I have the problem with keyfobs ....

Some people reading this post must be thinking why I am not going to Nissan..
I already go to Nissan, they are not competent for resolve my issue. They haven't the 'Signal Tech-II (J-50190)' to test car/keyfob signal... they dont' know how to use CONSULT on Nissan 370z...
I already go to many nissan dealer of Paris , I've same response from all.

group256 · 01-08-2023, 01:07 PM

did you manage to solve your problem? I have the exact same problem. It's very frustrating sometimes.

BoilardZ · 01-09-2023, 10:15 PM

For what it's worth:
I recently experienced the same issue. Key fob suddenly stopped working, and my backup key fob also didn't work. I replaced batteries in both, and cleaned the contacts really well, but no dice. I double-checked the new fob batteries, and they registered 3.3 volts. So I figured the problem must be in the car's receiver.
I was about to take the car to the Stealership when I decided to make a Hail Mary move: I bought another set of new fob batteries from a different store. Now both fobs work!
There are two lessons here:
1. Even if a new battery shows full potential (i.e, voltage), it doesn't mean it has sufficient power. Sometimes batteries sit on store shelves for a long time and degrade before you even get them out of the package.
2. Occam's Razor. The simplest explanation for fobs not working is that you have dead batteries. Make triple-sure your batteries are fresh and good before moving on to other theories.
Good luck!
Steve

11-12-2020, 02:24 PM	#31 (permalink)
cooltoy Elite Member Join Date: Jun 2012 Location: Calgary Posts: 13,971 Drives: 14 PW 370Z S/T MT Rep Power: 243722	Looks like you have figured out a way to use your fob. Life is good again. brainrain likes this. __________________ Member of kenchan's "photoshopped mods" and "proper offsets" gang.

01-09-2023, 10:15 PM	#35 (permalink)
BoilardZ Base Member Join Date: Apr 2017 Location: Sacramento, CA Posts: 88 Drives: 2017 370Z Rep Power: 8	For what it's worth: I recently experienced the same issue. Key fob suddenly stopped working, and my backup key fob also didn't work. I replaced batteries in both, and cleaned the contacts really well, but no dice. I double-checked the new fob batteries, and they registered 3.3 volts. So I figured the problem must be in the car's receiver. I was about to take the car to the Stealership when I decided to make a Hail Mary move: I bought another set of new fob batteries from a different store. Now both fobs work! There are two lessons here: 1. Even if a new battery shows full potential (i.e, voltage), it doesn't mean it has sufficient power. Sometimes batteries sit on store shelves for a long time and degrade before you even get them out of the package. 2. Occam's Razor. The simplest explanation for fobs not working is that you have dead batteries. Make triple-sure your batteries are fresh and good before moving on to other theories. Good luck! Steve sx moneypit likes this.

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01-08-2023, 01:07 PM	#34 (permalink)
group256 Base Member Join Date: Oct 2020 Location: Los Angeles Posts: 5 Drives: 370z Convertible Rep Power: 5	did you manage to solve your problem? I have the exact same problem. It's very frustrating sometimes.