smijay Posted October 1, 2018 Share Posted October 1, 2018 (edited) Hi people, 04 UK 350z key fob stopped working this afternoon, have changed the battery and still nothing! Manually locks / unlocks fine via the door slot but alarm goes off until ignition is turned on. Will not lock or unlock remotely (so it can't be the buttons themselves) any common issues or easy / not overly expensive replacement fob options anyone knows of? Thanks in advance! Edited October 1, 2018 by smijay Quote Link to comment Share on other sites More sharing options...
Jack94 Posted October 1, 2018 Share Posted October 1, 2018 Not sure if it's always the case, but after I replaced the dead battery in one of my keys I had to re-program it to the car. I used this guide- 1 Quote Link to comment Share on other sites More sharing options...
veeg33 Posted October 2, 2018 Share Posted October 2, 2018 Check the circuit board carefully, sometime the battery contacts are corroded, covered with battery acid or leaked battery acid has short circuited the board. Give it a clean with contact cleaner or scrape it out. If still not working, buy a used key fob from breaker. Buy a used one, swap the key blade and the immobiliser/transponder chip 'black rectangular carbon looking bit'. Or if yours looks better, just swap the circuit board around. Reprogram it to you zed again and you're done. https://www.ebay.co.uk/itm/Genuine-Nissan-350Z-Navara-Almera-Micra-Primera-XTrail-2-Button-Remote-Key-Fob/263368279530?hash=item3d51f905ea:g:IVIAAOSwAHtaJyMl Note: You can only reprogram the unlock/lock function of the key fob yourself on the zed as per instructions link above. The immobiliser can only be done with a device which will cost you £100 to £200 each time. 1 Quote Link to comment Share on other sites More sharing options...
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