foz Posted October 22, 2013 Share Posted October 22, 2013 i have a problem on ford mondeo 2009 mk4 titanium x 5dr hatch on a return journey i noticed when i pressed the breaks my dash was displaying my luggage compartment was open, on closer inspection i noticed all the rear lights were dimming when the break was pressed and the boot lid was shut tight i did notice that the left hand break light bulb had blown so replaced bulb at a garage on way home but that did not sort my problem out. the break lights are dimming all rear end lights inc number plate light etc and still getting luggage compartment open when pressing the break peddle, normally i would say bad earth....? but ive removed both bulb holders away from the loom to the rear light clusters on body but ive noticed its even dimming the boot interior light when the bulb holders are removed from both sides and the break pressed which then points me to the tail gate center stop light..? ive removed the plastic cover to the tail gate but can not see any water any where causing the problem just wondered if anyone could point me where to look next i can only think its a break in the boot lid wiring at the moment but wanted to ask before going any further i did notice if this helps, that if the lights are off, the luggage compartment did not beep and display as oftern on dash thanks in advance for any help foz Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted October 22, 2013 Share Posted October 22, 2013 Check the main earth points (next to battery in bonnet, behind the boot trim panels, and also under the hatch panel looking at the catch system itself. Check that these points are secure, rust free, and making a clean contact, and are not being shorted, as I suspect this may be the alternative to a bad earth... 2 Quote Link to comment Share on other sites More sharing options...
foz Posted October 22, 2013 Author Share Posted October 22, 2013 no these earth point appear to be clean and tight i am now awaiting a family memeber to return home so i can get inside the boot while they press the break peddle to get multi meter in there eveything at the front end seems fine when breaks are pressed and lights on foz Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted October 22, 2013 Share Posted October 22, 2013 sounds like an electrical short in the wiring loom for the boot area. If its affecting both sides, it will be up towards the roof lining before the wiring splits off, but as all earth points are clean, then this is where my money is. Quote Link to comment Share on other sites More sharing options...
foz Posted October 22, 2013 Author Share Posted October 22, 2013 I’ve sorted it well ... lol cured the problem While in the boot I’ve noticed a noise buzzing coming from the boot latch when thefault occurred in the end I put a new earth to n/s rear light as this seemed to be affectedworse if no lights were on the indicator bulb light up but o/s was fine And low and behold this cured the all problems / faults Now I either need to find earth to that side or leave the tempre earth on permanentlyany ideas where it picks the earth up from on the n/s/r loom in the boot not the hatch? also thanks for your time & help foz Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted October 22, 2013 Share Posted October 22, 2013 Hi Darren, Not sure for certain where it picks it up, I know there is a chassis earth point on the metal panel of the boot behind the plastic interior panels. You should be able to use this, or if this is affected, you could look to remove it, sand it and clear it up then reattach the earth point? Quote Link to comment Share on other sites More sharing options...
foz Posted October 22, 2013 Author Share Posted October 22, 2013 that is where i picked up the tempre earth from to test it i just poped in the house to see if you had replied just incase earth was close by i am just going to cut in to the loom and solder this new earth in other wise it ilooks like i need to remove all the panels to trace it back and its not really worth it as long as it cures my fault it will be permanent fix now thanks again for your time and help foz Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted October 22, 2013 Share Posted October 22, 2013 Glad to be of some service Darren :) Feel free to pick the best post here (even if it is yours!) and click it as "mark solved" so that others in the future can see this Quote Link to comment Share on other sites More sharing options...
stooge75 Posted October 22, 2013 Share Posted October 22, 2013 mark solved jeebo? wheres this? never noticed it Quote Link to comment Share on other sites More sharing options...
foz Posted October 22, 2013 Author Share Posted October 22, 2013 stooge75, do you mean where is the mark solved? bottom right ? foz Quote Link to comment Share on other sites More sharing options...
stooge75 Posted October 22, 2013 Share Posted October 22, 2013 see it now. only the original poster can see it lol 1 Quote Link to comment Share on other sites More sharing options...
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