V50 Electrics : - Help

De007799 · Jun 27th, 2020, 18:54

Hello, my fob stopped working on my 2007 v50. I have put a new battery in, but with no joy, so the alarm wont arm. Help!

firefly1 · Jun 29th, 2020, 20:37

Hi, I'm afraid this is not uncommon from some of the posts on the forum. Most people have had to visit the main dealers to have them reprogrammed to the car.

IainG · Jun 29th, 2020, 22:12

Hi
Do all the buttons actually "click"?
I had this on mine.and managed to replace the switch
https://www.volvoforums.org.uk/showthread.php?t=201489

What about your 2 nd key?
Are you 100% certain you have the correct battery. Some look very similar to each other but aren't correct.

Iain

Thassos · Jun 29th, 2020, 22:39

try measuring continuity - resistance across the offending switch (battery removed) you should get a low (sub 1 ohm) resistance when pressed, a quick workaround if the switch is faulty would be to take one of the others off and put in its place to get something working..

AndrasL · Jun 30th, 2020, 09:59

Try the spare key. If it also fails, the fob is probably not at fault. However, if it works, try to replace the battery again - maybe you got a bad one.

Jun 27th, 2020, 18:54	#1
De007799 New Member Last Online: Jul 1st, 2020 10:17 Join Date: Jun 2020 Location: Swansea	Help Hello, my fob stopped working on my 2007 v50. I have put a new battery in, but with no joy, so the alarm wont arm. Help!

Jun 29th, 2020, 20:37	#2
firefly1 Junior Member Last Online: Jun 29th, 2022 12:27 Join Date: Jun 2020 Location: Bristol	Hi, I'm afraid this is not uncommon from some of the posts on the forum. Most people have had to visit the main dealers to have them reprogrammed to the car. __________________ 2008 v50 1.8SE

Jun 29th, 2020, 22:12	#3
IainG Premier Member Last Online: Today 06:03 Join Date: Apr 2013 Location: Plymouth	Hi Do all the buttons actually "click"? I had this on mine.and managed to replace the switch https://www.volvoforums.org.uk/showthread.php?t=201489 What about your 2 nd key? Are you 100% certain you have the correct battery. Some look very similar to each other but aren't correct. Iain Last edited by IainG; Jun 29th, 2020 at 22:41.

Jun 29th, 2020, 22:39	#4
Thassos GoldMember Last Online: Today 09:29 Join Date: Jul 2010 Location: Kent, UK	if you have a dvm try measuring continuity - resistance across the offending switch (battery removed) you should get a low (sub 1 ohm) resistance when pressed, a quick workaround if the switch is faulty would be to take one of the others off and put in its place to get something working..

Jun 30th, 2020, 09:59	#5
AndrasL Member Last Online: Feb 14th, 2024 10:19 Join Date: Nov 2018 Location: Budapest	Try the spare key. If it also fails, the fob is probably not at fault. However, if it works, try to replace the battery again - maybe you got a bad one.

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