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Key fob lock button works but doesn’t.
Diskutujte o problémech, které jste měli nebo máte se svým Z4
8 příspěvků • Stránka 1 of 1
tomrdy Member
Příspěvky: 492 Založen: Út 26. června 2018 9:16 pronájem: Sydney, Austrálie
Key fob lock button works but doesn’t.
Odeslat tomrdy » Pá 05. října 2018 11:50
I recently got around to fixing my «dead» second key — soldered in a new battery, and did the reset sequence. All is well and functional except locking.
Pressing the BMW roundel button does not lock the car. My first thought was the button or circuit for it is dead but realised that in order to successfully execute the reset sequence, that button had to have worked To my caveman eyes, the circuit board connections seem to look fine. Don’t know about the chip looking things tho (ok I’m not qualified to make a judgement on the circuit board lol).
Thoughts? I’m thinking of getting the software to try and program in the window control functions for the key — I saw in a demo that there’s a «key status» section? Could that reveal something?
-SOLD- Nardo grey 2004 Z4 3.0i E85
-SOLD- 2016 Long Beach Blue M2 DCT
-Wishing- Z4MC Interlagos blue.
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Austrálie
tomrdy
joluga123 Newbie
Příspěvky: 1 Založen: Pá 26. října 2018 11:32
Key fob lock button works but doesn’t.
Odeslat joluga123 » Pá 26. října 2018 11:36
Hi, I just registered when I saw your post.
I have exactly the same problem, I changed the battery and re-sync the remote. unlock and trunk works, locking does not. (keep reading).
Playing with the remote I found out something interesting. double click unlock and then lock immediately, as fast as you can. the car will lock.
My other keyfob is working fine, I think we have a defective remote.
joluga123
dhobbs Senior Member
Příspěvky: 1621 Založen: Po 16. července 2012 5:33
Key fob lock button works but doesn’t.
Odeslat dhobbs » So 27. října 2018 6:57
I also have the same problem.
Got my spare key out to check it still works and the lock doesn’t work as you described.
I’ll try the double click method too.
Daz
3.0si roadster. Requisite stubby. Sound gen mod. LED numberplate lights. LED boot strip. Interior lights LED too. ZHP gearknob. Daily drive
Motor in boot. Bilstein B8 dampers. New radio, much better sounds
dhobbs
fredej Member
Příspěvky: 245 Založen: Po 29. října 2018 5:16 pronájem: Gothenburg, Švédsko Kontakt:
Key fob lock button works but doesn’t.
Odeslat fredej » Po 29. října 2018 6:43
One of my key suddenly stopped working for remote locking my car. All other function of the key was working. I tested with my spare key and that one was working normally.
In the BMW Technical Information System (https://www.newtis.info/tisv2/a/en/e86- . ey/X7QRmgq) I found this:
The charge level of the standard/rechargeable battery in the key fob transmitter when a button is pressed is monitored.
If the voltage drops to a lower limit, the key fob transmitter signals the battery condition to the basic module. The basic module processes that information as follows:
— The command «Lock vehicle» is not executed. All other functions are allowed.
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The low voltage is registered on the basic module
The message is analysed by the diagnostic program for the radio remote control. It is automatically deleted once the voltage level on the key fob transmitter has been OK again 5 times in succession.
If low voltage occurs, the following operations are required:
— On key fob transmitters with standard battery, the battery must be replaced
— On key fob transmitters with rechargeable battery, the battery must be charged for at least 30 minutes in the ignition lock.
A non voltage-dependent memory in the key fob transmitter ensures that the initialisation data is not lost even if the battery is completely discharged.
When I get the chance, I will charge the key in the ignition and then do the unlock/open tailgate/turn on lights procedure 5 times and hope that the key will work normally after that.
