Compression Ignition Addict
Join Date: Aug 2011
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There are more than one issue with these back up sensors. Most commonly is failure of one of the sensors but there are more parts to the system than that. One being the speaker that makes the "beep" sound and can also be somewhat common. From what I understand if the "off" illumination on the button for the backup sensor is ON or lit up only when you go in reverse, then one of your sensors is bad. If the "off" is lit up all the time regardless of gear your in then you either have a bad speaker to sound the alarm or "beep" sound or another failure within the backup system. You can run a test to test the sensors. Turn the key on (engine off), put Ebrake on, put trans in reverse, go back and listen to each sensor (ear directly on each sensor) for the sensors clicking. They make a fairly rapid clicking sound normally when in reverse when the sensors are operating normally. If there is no clicking sound or the clicking is slower than the others, this is your bad sensor. While this sounds odd or possibly confusing, I promise you it is not a hard to do test. Very easy and will make perfect sense when you opt to do this. If all your sensors are "clicking equally" you dont have a sensor issue, possibly the little speaker or another failure within the backup system that would need a "scan" for proper diagnosis. The scan performed by a mechanic that owns the proper scan tool or the dealership, can also tell you wich sensor is bad if you rather that option. For me personally, I like to try to diagnose my own problems and only move to a mechanic or the dealership if I have to...best of luck...
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'05 DRW CC
ARP studs,B/O HG's,RCD EGR del,SCT(Innovative),4" turbo back,AFE Stg1,Edge Insight,CT 5R110,Dieselsite trans filter,Dfuser coolant filter,CCV mod,Sprintech lowering shackles,Recon smoked everything+Tailgate lightbar,LED conversion,DeVries emblems,billet grille,All Ford avail updates after 2005.
Last edited by mygt8a4re; 10-15-2013 at 03:01 PM.