Question about the push-button start
05-20-2010, 10:32 AM
#16
Nah it doesn't charge the fob's battery Sam...just if the fob battery is dead it will prevent you from starting the car (b/c the car will think there is no fob at all) and so putting it in the slot makes the car recognize it.
But the only way to "charge" the fob is to change the battery
But the only way to "charge" the fob is to change the battery
05-20-2010, 11:06 AM
#17
I don't remember where I read this, but the idea behind sticking the fob into that slot to start the car when the fob battery is dead is because it allows the "weak" signal to reach the sensor. In other words, if the fob battery is 100% completely dead, sticking the fob into the slot will do nothing. But since those little button batteries ten to weaken as they age, the fob may not have enough juice left to send the signal from your pocket (or wherever you keep it) to the signal sensor. So putting the fob into the slot just moves it closer to where it needs to be to allow the signal to reach in the case of a weak battery.
05-20-2010, 11:08 AM
#18
Registered User
05-20-2010, 12:25 PM
#19
Ha, we should stick a key fob etiquette thread. Reality of the whole smart key thing is that it actually works pretty well, but I was hesitant when I first got the car.
I have noticed that the car sometimes hesitates with the keyfob in the car. Like I hit the button, and a second or two passes, just enough time for me to look at the car like
and then it starts.
I bought one of those little key fob condoms at the stealership last time I got my car in for service (along with an infiniti T shirt of course) and i love it.
Just to clarify further, if the car is locked and the keyfob is "dead" holding it on/ right next to the door unlock button will also allow the person to unlock the car.
I have noticed that the car sometimes hesitates with the keyfob in the car. Like I hit the button, and a second or two passes, just enough time for me to look at the car like
and then it starts.I bought one of those little key fob condoms at the stealership last time I got my car in for service (along with an infiniti T shirt of course) and i love it.
Just to clarify further, if the car is locked and the keyfob is "dead" holding it on/ right next to the door unlock button will also allow the person to unlock the car.
05-20-2010, 04:01 PM
#20
05-20-2010, 04:20 PM
#21
Registered Member
I don't remember where I read this, but the idea behind sticking the fob into that slot to start the car when the fob battery is dead is because it allows the "weak" signal to reach the sensor. In other words, if the fob battery is 100% completely dead, sticking the fob into the slot will do nothing. But since those little button batteries ten to weaken as they age, the fob may not have enough juice left to send the signal from your pocket (or wherever you keep it) to the signal sensor. So putting the fob into the slot just moves it closer to where it needs to be to allow the signal to reach in the case of a weak battery.
The I-Key has 2 IDs, one for Intelligent Key RF transmission and one for IVIS (NATS) which is a separate Infinit/Nissan immobilization/anti theft system. The latter ID is store in a circuit in the FOB. When your FOB battery is discharged and you plug it into the slot the electronics around the slot can read the ID just like a non-IKey Nissan vehicle with a NATS chip in the physical key. So the slot is not just a place to put your FOB but required if the I-Key transmission is not possible due to a discharged battery.<!-- google_ad_section_end -->
05-20-2010, 05:11 PM
#22
From one of my prior posts:
The I-Key has 2 IDs, one for Intelligent Key RF transmission and one for IVIS (NATS) which is a separate Infinit/Nissan immobilization/anti theft system. The latter ID is store in a circuit in the FOB. When your FOB battery is discharged and you plug it into the slot the electronics around the slot can read the ID just like a non-IKey Nissan vehicle with a NATS chip in the physical key. So the slot is not just a place to put your FOB but required if the I-Key transmission is not possible due to a discharged battery.<!-- google_ad_section_end -->
05-20-2010, 06:39 PM
#25
Not sure who you're talking about, but the information I just asked about is not in the manual. There's no explanation on HOW the port actually works. It just says to put the fob into the slot in the event of an "almost discharged" battery in the fob.
The fact that it says "almost" discharged makes me think that the battery still has to have some juice left in order for the port to allow the car to start. But still, I don't know how it works. Do you?
The fact that it says "almost" discharged makes me think that the battery still has to have some juice left in order for the port to allow the car to start. But still, I don't know how it works. Do you?
05-20-2010, 06:48 PM
#26
Here is a test.
Remove the battery. Stick fob in the key hole. Try to start the car. Post result here.
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Remove the battery. Stick fob in the key hole. Try to start the car. Post result here.
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05-20-2010, 06:50 PM
#27
And here is something on RFID tags:
There are generally three types of RFID tags: active RFID tags, which contain a battery and can transmit signals autonomously, passive RFID tags, which have no battery and require an external source to provoke signal transmission, and battery assisted passive (BAP) RFID tags, which require an external source to wake up but have significant higher forward link capability providing greater range.
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There are generally three types of RFID tags: active RFID tags, which contain a battery and can transmit signals autonomously, passive RFID tags, which have no battery and require an external source to provoke signal transmission, and battery assisted passive (BAP) RFID tags, which require an external source to wake up but have significant higher forward link capability providing greater range.
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I just love this car.
05-20-2010, 08:42 PM
#29
05-21-2010, 10:13 AM
#30
Registered Member
So if the fob battery is COMPLETELY discharged, will sticking it in the slot still allow the car to start? It sounds like you're saying that this secondary ID is more like the chips that have been embedded into ignition keys for years now, so if that's the case, no battery power should be required at all, right?