gforce2k Posted January 15, 2014 Share Posted January 15, 2014 Hi all, CMAX 2.0 Zetec Auto 2008 I have severe electrical issues at present (central locking, dashboard not showing indicators/lights & has engine electrics warning, now wipers stopped working last night). I believe i need a new internal fuse box (GEM/ECU ??) to replace the one in the passenger well of my CMAX which seems to have been damaged by water ingress. The part number is 7M5T 14a073 CC Apparently ford installed a blanket fuse box with all electrical functionality for the entire range ready to be programmed dependant upon the model sold with, but I have no idea what the part number is. Is it correct that any fuse box starting with: 7M5T 14a073 C... will work and just needs to be coded or do i need to find either exactly the same (CC) or the next letter along i.e. CD,CE,CF which i assume have higher functionality than the existing?? I have found one fusebox online 7M5T 14a073 CF that looks similar, apparently fits 2008 cmax models but I urgently need some guidance. cheers, GF2K Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted January 15, 2014 Share Posted January 15, 2014 Sounds more simple an issue than the fuseboard needs replacing Disconnect the battery and leave for 5 minutes, Then drop down the fuseboard. Around the central right of the fuseboard is the main wiring harness, this probably has become loose, I would suggest that you at this point disconnect ALL relays and harnesses, and then reconnect and resecure them all back into place. Then when you reconnect the battery, this should help to clear the immediate error and start afresh. Quote Link to comment Share on other sites More sharing options...
gforce2k Posted January 15, 2014 Author Share Posted January 15, 2014 Thanks JW I have previously pulled the internal fuse box out, taken everything out (wiring, fuses etc...everything) and replaced it all exactly as was with no improvement - key difference was I didn't disconnect the battery) wife has the car until 4pm so when back i'll do what you suggest: disconnect battery, then just pull out the large cube shaped units and wiring plugs NOT fuses or everything again then reconnect it all and then battery? also, should I just do this to the internal passenger side fuse box or the engine bay fusebox too? thanks gf2k Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted January 15, 2014 Share Posted January 15, 2014 would be worth doing it to both fuse boxes, leave the fuses in place but remove and re-seat each of the harnesses in turn. The only reason I say do it with the battery off the loop, is because it can then pick up the fluctuation in voltage and could lodge some odd error codes! Quote Link to comment Share on other sites More sharing options...
gforce2k Posted January 15, 2014 Author Share Posted January 15, 2014 ok will do both after disconnecting battery and let you know how it goes Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted January 15, 2014 Share Posted January 15, 2014 Good Luck! Quote Link to comment Share on other sites More sharing options...
gforce2k Posted January 24, 2014 Author Share Posted January 24, 2014 Hi JW/everyone, No luck, still an issue. Had the car MOT'd successfully yesterday with this fault, only change is the dashboard engline warning lightis gone. Afterbringing the car home I tried the key fob lock button to see if now thewarning light was gone it would work without seizing up the door locks,unfortunately it did the usual, triggered the passenger door locksagain so I had to get the fuse box down and short the pin 16 on themiddle plug to pop them open again. So back tomanually locking each passenger door by puching the lock button aboveeach handle, then locking the drivers door manually with the key. If you have any other thoughts - definitely fusebox or definitely drivers door lock etc. I really appreciate it. Taking car in to the mechanics tomorrow but worried will turn into an expensive proposition. Cheers, gf2k Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted January 27, 2014 Share Posted January 27, 2014 It sadly sounds like the pins may have corroded and as such, may be a new fuseboard is needed :( Quote Link to comment Share on other sites More sharing options...
Bramble26 Posted September 25, 2015 Share Posted September 25, 2015 I have exactly the same problem as the previous guy... Going that this will prompt someone to post who has any fresh ideas on how to resolve. Central locking not locking ( but unlocks) warning headlights on..... Any bright ideas very much welcomed Quote Link to comment Share on other sites More sharing options...
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