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S40 / V40 '96-'04 General Forum for the Volvo S40 and V40 (Classic) Series from 1995-2004. |
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Remote locking key-fob not working V40 (2001)Views : 5643 Replies : 9Users Viewing This Thread : |
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Jan 16th, 2014, 22:04 | #1 |
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Location: Bristol
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Remote locking key-fob not working V40 (2001)
Battery ran flat as I hadn't closed the glove box properly. Jumped it and all is fine except that the key fobs no longer work. Central locking works when locking with the key, but I don't think the alarm is set. I have two key fobs, like in the photo below. I've given them both new batteries. One was a bit temperamental when I used to use it (using out of range maybe screwed it up) Also the other had played up a couple of time recently, but worked ok most of the time.
I've tried some of the ignition on / off/ hold button tricks on here and nothing seems to work as yet. Tried disconnecting and reconnecting the battery. Should I try removing the alarm fuse and replacing, or any other fuses? I think I saw one thread say something about trying the electric window fuse... I had tried to get it to work quite a few times before I realised the battery was drained so maybe this has disassociated it with the receiver? Any help much appreciated. Untitled by busseynova, on Flickr |
Jan 17th, 2014, 10:30 | #2 |
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From what I've read if the keys have lost there remote locking ability then it's a dealer job to reprogramme and it's not cheap.
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Jan 24th, 2014, 16:09 | #3 |
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Am I correct in saying that if you still have a working fob then you can buy a generic programmable 433.92MHz fob and transfer the function to that?
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Feb 1st, 2014, 12:40 | #4 |
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Last Online: Jul 20th, 2014 17:07
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So I contacted my local dealer and they said the fob isn't reprogramable which sounds like BS to me, but I can't get any further info out of them over the phone.
I should add that when I first opened the bonet, when the battery was dead, the alarm triggered and went off, but with very little volume, and shortly dies completely. Is the alarm powered by a seperate battery and could it be that this has run flat and can't recharge? |
Feb 1st, 2014, 13:42 | #5 |
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Apparently the dealer needs a code that comes with a new fob to program it to the car.
With regards to alarm battery, yes, there is an internal battery in the alarm siren. It is a 7.2V 140mAh 6/V150H battery with a connector.
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Current car: 2002 S40 1.9D, 1992 240SE Nullius in Verba
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Feb 1st, 2014, 14:25 | #6 | |
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Location: Bristol
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Quote:
I've now checked all the fuses, they all appear fine, there are 3 in a yellow shroud in the engine bay fuse box that I couldn't get out (presumambly they're locked in to prevent messing with the alarm system in the first place) but they appear to be fine too from what I can see. Since talking to a local specialist, I'm working under the assumption that the battery in the alarm just powers the actual siren, rather than the remote sensor. Does it recharge off the main battery do you know? |
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