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View Full Version : can't unlock car..key fob? central locking?

nicole_
28th November 2013, 17:18
Went to unlock my car today at lunchtime and nothing happened. I have an aftermarket key fob so i've had a few issues with the battery popping out recenty. after i put this back in place it still wouldnt unlock.
I've then tried a new battery, tried a different key fob casing and the battery voltage on the car is fine.
My issue is my sax is delocked and depinned, so my only way in is through my boot, and even this lock gave me trouble and i was locked out the car for nearly 3 hours today :wall:

Any ideas?
Can the circuit board just die randomly?
Malley
28th November 2013, 18:00
It may be that the fob needs reprogramming to the alarm. If you still have manual for Alarm have a gander in there to see how to reprograme fob to alarm
white_vts_boy
28th November 2013, 19:20
My car did exactly the same, aftermarket fob working fine oneday just wouldnt open n when i did unlock it by the key alarm went off! still haven't any idea what is wrong with it! if u find out let me no!
nicole_
28th November 2013, 21:33
No manual nope :/
Mine won't even unlock at all. I've got in through the boot but out of ideas on how to unlock it!
stevo67
28th November 2013, 22:06
The circuit board in the fob can crack(hairline)
white_vts_boy
29th November 2013, 00:53
is it a standard fob and alarm?
Saxo_Ross
6th December 2013, 13:30
yea ive suffered same thing, changed batterys, changed casing and nothing! if the circuit board has cracked, is there a way around it?
Saxo_Ross
6th December 2013, 13:35
also, if im looking at this
http://www.ebay.co.uk/itm/CITROEN-SAXO-NEW-COMPLETE-2-BUTTON-KEY-FOB-REMOTE-ELECTRONICS-BLADE-CHIP-/390657626497?pt=UK_Car_Accessories_Safety_Security&hash=item5af5025181

does anyone know what to do without going to a garage?

Cheers,
Ross
Manu
6th December 2013, 13:52
You need to resync the fob after a battery change.
jokerer
6th December 2013, 14:36
how much is it to get a new fob re-programmed? I always thought it was at least 100 quid
Saxo_Ross
6th December 2013, 15:13
You need to resync the fob after a battery change.

is that where you hold the button for 12 seconds or whatever?
if so ive already tried that :(
Manu
7th December 2013, 12:21
Yeah normally you hold the open button for 5-6 seconds to resync (on HF fobs, not the old infrared). If that doesn't work, either fooked fob or fooked receiver.