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View Full Version : DIY - Keyfob repair


richpu
08-30-2010, 01:21 PM
Hi All,
I had a problem with my spare keyfob not working. it would open the doors but not lock them. I know that this is a symptom of a flat battery in the fob and you need to put it in the car to charge up.

Well I had it in the car for approx 5 hours and it made no difference.
I thought it must be the battery that's dead. therefore open it up and replace the rechargeable battery...

so here goes.

Cut around the key with a sharp craft knife. (this took about 10-15 mins)

http://a.imageshack.us/img138/8509/sam0600.jpg
By richpu (http://profile.imageshack.us/user/richpu) at 2010-08-30

Once I cut around the keyfob case and opened it up, it became clear why the locking was not working. The switch had come unsoldered.
http://a.imageshack.us/img836/6752/sam0597.jpg

http://a.imageshack.us/img64/3306/sam0601n.jpg

detail of the rechargeable battery
http://a.imageshack.us/img507/1840/sam0604.jpg


Re-soldered the switch and tested it and the car locked and unlocked just fine.
so that saved me having a mess around with the battery.:)

Once I was happy it was working I glued and held it together using cable ties until the glue dried.

Hopes this helps anyone if they have the same issue.

Regards,
RichPu