back up park aid

arodrigues · #1 (**permalink**) 05-28-2008, 08:40 PM

i start my truck and the backup sensor light is on (so no off light)
as soon as i put the truck in R the off light apears and the sensor do not work. but when i go to N D 3 2 1 i can press the button and the off light is gone so its back on again. but as soon as i go back to park you have to go threw R and the light comes on saying that its OFF any ideas ?

A-rod

**Powerage** · #2 (**permalink**) 05-29-2008, 05:23 PM

It's either a bad sensor or a broken wire. If it;s not the wire then the only way to tell which sensor it is is with a scan tool that can read the bcm.

arodrigues · #3 (**permalink**) 05-29-2008, 07:46 PM

none of these wires go under the hood do they. just from the switch to the tranny to the back?

**Powerage** · #4 (**permalink**) 05-29-2008, 07:52 PM

i don't think so. I think they just go to the back. If it is a wire it's probably by your rear bumper and was broken by a rock or something. Most likely a sensor though. They are prone to going bad and they are not cheap either.

arodrigues · #5 (**permalink**) 05-29-2008, 08:18 PM

ya 100$ plus no any where i can get them cheaper then that

**Powerage** · #6 (**permalink**) 05-29-2008, 08:22 PM

junkyards? I got mine from a salvage yard. I got all 4 and the rear harness for $250.00. So you know. Any ford reverse sensor will work. The harnesses are different but all the sensors are the same.

arodrigues · #7 (**permalink**) 05-29-2008, 11:20 PM

thanks man

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