Joshhunt Posted March 8, 2018 Share Posted March 8, 2018 Hi All Bought my first Ford Focus (Zetec mk2.5, 10 plate) 3 weeks ago and unfortunately have only just noticed an annoying issue. Was hoping someone would be able to offer advice/ a fix. The parking sensors were working perfectly. A friend pointed out to me that my reverse bulb had gone. When I went to replace it, there wasn't a bulb in there. 'Strange' I thought... I went and bought a bulb and fitted it, got someone to check it was working properly, and it was. Great. The next day I noticed the Parking sensors were not working, at all. I instantly made the link that it could be something to do with my new bulb. I removed the bulb and low and behold the Parking Sensors worked. So basically, I can either have a working reverse light, or working parking sensors, but not both! Very frustrating. I'm assuming it's a wiring issue but I'm not great with cars or electricity so I was hoping someone could help me! I love my first Focus other than this annoying problem! Cheers Quote Link to comment Share on other sites More sharing options...
Joshhunt Posted March 9, 2018 Author Share Posted March 9, 2018 No ideas? Quote Link to comment Share on other sites More sharing options...
alexp999 Posted March 9, 2018 Share Posted March 9, 2018 Possibly an aftermarket kit that hasn't been wired in properly? Quote Link to comment Share on other sites More sharing options...
mjt Posted March 9, 2018 Share Posted March 9, 2018 Are these OEM or aftermarket parking sensors? The only rational explanation seems to be that the current taken by the bulb is causing a votage drop somewhere resulting in not enough voltage for the sensors to operate. Alex got in just ahead of me Quote Link to comment Share on other sites More sharing options...
Joshhunt Posted March 12, 2018 Author Share Posted March 12, 2018 Thanks guys. Not sure if it's retro fitted or not. Seems a reasonable solution but no idea how to check/fix Quote Link to comment Share on other sites More sharing options...
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