timbosghia Posted October 22, 2013 Share Posted October 22, 2013 Hi there, I am new to this forum & having spent most of today on the net, I have decided this is the best focus forum about. As the title says, I have OEM sensors fitted to my 2007 focus 1.8 Ghia tdci, which, along with the reverse lights have stopped working. I have checked the bulb & fuse in the glovebox compartment. I have checked for power at the switch, located on the top of the mtx75 gearbox, which is there, shorted the two wires in the connector together & still they don't' work!! Is there another fuse or relay somewhere which could be faulty? Cheers Tim. Quote Link to comment Share on other sites More sharing options...
Stoney871 Posted October 22, 2013 Share Posted October 22, 2013 The reversing sensors require a signal from the reverse light loom in order to activate so I would say that the loom from the switch to the light is most probably the culprit. There is a footwell fuse layout for your car under this post. Quote Link to comment Share on other sites More sharing options...
timbosghia Posted October 22, 2013 Author Share Posted October 22, 2013 Thanks for the prompt reply. I have power to the switch & have joined the two wires together & still they don't work. I would presume this would eliminate the fuse & switch & also it would seem that the electric mirrors are fed from this fuse(141) & they work fine. Does the outgoing wire from the switch go to reversing lights or to the module which is located behind the osr trim panel? Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted October 23, 2013 Share Posted October 23, 2013 so you have shorted out the live wires at the gearbox switch and they still dont come to life? It would suggest either a possible bad earth for that area, or perhaps a bad wire going into the reverse switch? Quote Link to comment Share on other sites More sharing options...
timbosghia Posted November 10, 2013 Author Share Posted November 10, 2013 Well, finally it has stopped raining, so I have attempted to repair this. I have discovered that if I remove the reverse light bulb, the sensors work correctly. I have swapped the holder with the fog light holder & it is OK in the foglight. Thinking it must be a dodgy earth for the reverse lights, I bared a section of the earth wire (black wire) & connected that to a good earth. Still they don't work. So I tried linking the gearbox switch wires together & still no joy! I have tried a new fuse & bulb as well. All I can think of now, is that it is fault with a connection prior to the fuse box. Any advice will be greatly appreciated. Cheers Tim Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted November 11, 2013 Share Posted November 11, 2013 possibly... Although the signal is getting to the rear reverse light so I dont believe so. If you disconnect the power for the reverse sensors, does everything else behave? I have to say it still sounds like a bad earth... Quote Link to comment Share on other sites More sharing options...
Wildernis Posted December 26, 2013 Share Posted December 26, 2013 I have the same problem on an 05 plate. As both failed at same time I thought it would probably be the switch on the gearbox??? Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted December 26, 2013 Share Posted December 26, 2013 Switch is a strong candidate! Quote Link to comment Share on other sites More sharing options...
south_bound Posted December 31, 2013 Share Posted December 31, 2013 Just to tag onto this thread, my reverse light, reverse sensors and automatic rear windscreen wiper are only coming on intermittently when I reverse. To me this sounds like a dodgy connection at the reverse switch (corrosion?). I have found the switch, which is accessible with the air box taken out but is still under the battery and difficult to fit my hand and get a grip to pull it out. The Hayes Manual isn't very helpful on how to disconect - is it just a spade connector to pull straight out? Any ideas on how to pull it out without breaking something - then I can clean it up and test. 1 Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted December 31, 2013 Share Posted December 31, 2013 Apply sillicone lubricant and let it set in, but I believe its just a pull out connector. Quote Link to comment Share on other sites More sharing options...
timbosghia Posted December 31, 2013 Author Share Posted December 31, 2013 Due to the bad weather & other commitments, I haven't had a chance to pursue this problem. In answer to "v,s" question, the connector has little tabs you have to press in to release the connector. I think I have eliminated the switch by joining the wires together at the switch connector & also a faulty earth by baring the earth wire from the reverse light bulb holder & connecting that to a good earth. I was thinking that it could be a dodgy connection on the fuse box but have not had a chance to check it out yet, plus I cannot see how to remove the fuse box assembly. If anybody got any other ideas, let me know! Happy new year!! Cheers Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted December 31, 2013 Share Posted December 31, 2013 Strange, so the wires joined together turned the lights on? Quote Link to comment Share on other sites More sharing options...
timbosghia Posted December 31, 2013 Author Share Posted December 31, 2013 No, the lights nor sensors do not work at all, even if I link the wires on the switch connector together. The sensors will however work if I remove the bulb from the reverse lights! Quote Link to comment Share on other sites More sharing options...
mick85 Posted December 31, 2013 Share Posted December 31, 2013 Think u can do gem self test to test ur switch down to module think u hear a beep this will at least tell u which end problem on Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted January 2, 2014 Share Posted January 2, 2014 The switch is for user press buttons only, so yes, if you press and hold the rear demister as you start the car to electrics, it will enter this mode. Then you press the OEM Sensor switch and it should beep. However, the fact that you get the thing working with the bulb removed, sounds like it could be either a bad earth, or a bad bulb holder. Check it for corrosion as a starting point. 1 Quote Link to comment Share on other sites More sharing options...
peterF Posted June 16, 2018 Share Posted June 16, 2018 we seem to come to an abrupt end on this subject. did we get an exact solution Quote Link to comment Share on other sites More sharing options...
wild_one Posted January 15, 2019 Share Posted January 15, 2019 Mine have just stopped working. I sometimes get a continuous tone about 5 secs when i drop into reverse regardless of whether anything is close by? Quote Link to comment Share on other sites More sharing options...
Simmo80 Posted May 28, 2021 Share Posted May 28, 2021 I have similar problem. Just bought the 1.8 zetech 2009. The reverse light, parking sensors and parking ligjts were non existent. I checked bulb and fuse. Both look new as if someone has tried to fix it before sale. So i was planning on replacing reverse switch. Then tonight out of the blue. All 3 came back to life. So now am thinking loose wire. As i get sensor and light not working as they both activate from reverse switch. But why is parking ligjts intermittent at the same time? Anyone solved this issue? Quote Link to comment Share on other sites More sharing options...
Simmo80 Posted May 29, 2021 Share Posted May 29, 2021 Ok i am sorry. My mistake. The parking lights are nothing to do with reverse lights and sensors. Lol Focus is new and i didn't know parking lights only work when engine is off. OOOPS. so am guessing we're back to the switch. Quote Link to comment Share on other sites More sharing options...
Amsto Posted January 22, 2022 Share Posted January 22, 2022 I also have a 2009 1.8 Zetec with non-working reverse lights and a parking sensor that can best be described as schizophrenic. It will work perfectly fine at times, will beep continuously at other, cut in and out randomly on occasion. I admit I have not investigated the issue yet and came here first to see if anyone had figured out the order of operations to follow while trying to fix the problem. Any roadmap to fixing this is appreciated! Quote Link to comment Share on other sites More sharing options...
FinnF Posted January 26, 2023 Share Posted January 26, 2023 Any joy on this as I have a Fiesta 1.6Tdci 2013 with no sensors or reverse lights..... bulbs ok, fuse ok, switch ok Quote Link to comment Share on other sites More sharing options...
Simmo80 Posted January 26, 2023 Share Posted January 26, 2023 1 hour ago, FinnF said: Any joy on this as I have a Fiesta 1.6Tdci 2013 with no sensors or reverse lights..... bulbs ok, fuse ok, switch ok Best option I'd say was to change reverse switch. Under airbox screws into transmission. It's not expensive and usually 85/90 percentage of fix. Good look . That's all I did Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Ford UK Shop
Sponsored Ad
Name: eBay
Ford Model: FordUK Shop
Ford Year: 2024
Latest Deals
Ford UK Shop for genuine Ford parts & accessoriesDisclaimer: As the club is an eBay Partner, The club may be compensated if you make a purchase via the club
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.