Atki 0 Posted June 8, 2015 Hi all. Doing the pre MOT check this morning and found out that the Fogs are not working. I've checked each bulb and they all work. I've checked all of the fuses , the rest of lights work as they should. The fog light switch lights up with side lights for the night illumination. However when I switch the switch to get fogs ... nothing switch dosn't show on or anything. Have tried a tester and have power to the central tabs and it seems that the top three are negative. Can any of you guys help at all... please Quote Share this post Link to post Share on other sites
paddy26 3 Posted June 8, 2015 Are they a requirement for a mot? In Ireland they aren't required for a NCT(national car test), so we can just cover they in black tape and they won't be tested. That won't help you get them working though.... If you supply 12v to pin 3 white/yellow pin on the fog switch it should light the lights. If they light up then the issue is the switch, relay or earth. Pin 5 (grey/yellow) on the switch is the power from the relay, so if there is power there then the relay is fine. Quote Share this post Link to post Share on other sites
