roblam Posted March 28, 2017 Share Posted March 28, 2017 Hi, anyone know how to disable the front parking sensors on a 2010 Fiesta? I have front and rear sensors but the front ones have packed up, and I'd like to just disable them so I can still use the rear ones rather than the whole system beeping at me 'cos of the problem with the fronts. Thanks in advance for any help, Rob Quote Link to comment Share on other sites More sharing options...
HarryNLD Posted March 28, 2017 Share Posted March 28, 2017 You can't. You can disconnect the PDC module and loose all parking sensors. Replace the module for the basic one, just for the rear sensors. Or fix the front ones. What is wrong with the front sensors? A bad sensor is secondhand not that expensive. Quote Link to comment Share on other sites More sharing options...
roblam Posted March 31, 2017 Author Share Posted March 31, 2017 Hey Harry, Ta very much for the reply. There's no problems with the front sensors themselves - I've tested each one independently and they each work fine, but there seems to be a problem with the wiring to the front left sensor, so that the whole system refuses to work and now just gives me an error tone and a flashing light in the button on the dash when reverse is engaged. Tracing the fault would, I assume, mean knowing what voltage readings I should be getting at the PDC module - any idea what I should be looking for? Cheers, Rob Quote Link to comment Share on other sites More sharing options...
MJNewton Posted March 31, 2017 Share Posted March 31, 2017 Is this something that Forscan might be able to disable? Given that factory-fit rear sensors (only) were an option it must be a configurable option to enable (and therefore disable, if desired) the front sensors (if fitted) as opposed to having to swap out the BCM. Quote Link to comment Share on other sites More sharing options...
HarryNLD Posted April 2, 2017 Share Posted April 2, 2017 Wiring problems are very difficult to find without all the information from the system. Ford has the information, but unfortunately they will not give it too you. So I think you need to pay the Ford dealer a visit. If you do not want that, you need the check the complete wiring harness. Starting at your front bumper, check al the connectors, etc. a lot of work if you ask me. The PDC system of a MK7 is not connected to the BCM or canbus system. It all works analog, it gets its power from the reverse light or (in case of front PDC) the button on the dash. Very old fashioned, but it works. 1 Quote Link to comment Share on other sites More sharing options...
roblam Posted April 4, 2017 Author Share Posted April 4, 2017 Thanks guys. Looking again, I've found a very small (2mm) area where the insulation has been stripped from one of the wires to the front left sensor, so it's down to bare wire, though the wire itself looks intact. I did a quick fix wrapping it with some insulating tape but still have the same problem afterwards - not sure if I might need a more permanent fix (e.g. replace that bit of wire), or just a red herring? Was very much hoping to avoid a trip to the dealer, but guess I may have to... Quote Link to comment Share on other sites More sharing options...
Khan12 Posted July 10, 2022 Share Posted July 10, 2022 I have problem with the ford fiesta parking sensor activation button its always blinking. Can anyone guide me Quote Link to comment Share on other sites More sharing options...
unofix Posted July 10, 2022 Share Posted July 10, 2022 1 hour ago, Khan12 said: I have problem with the ford fiesta parking sensor activation button its always blinking. Can anyone guide me The flashing light is to warn you that one of the sensors is faulty and not working correctly. For safety the parking sensor system has been inhibited until the faulty sensor is replaced. Quote Link to comment Share on other sites More sharing options...
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