Backup Sensor - Diesel Truck Forum -
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post #1 of 2 (permalink) Old 11-25-2006, 05:35 AM Thread Starter
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Backup Sensor

Good Day All

I just got my 2005 f350 back after having a new back bumper installed. The backup alarm dash light is working fine until I shift into reverse, then the dash light comes on and it indicateds the alarm is off. The backup alarm does not function. This all worked fine before they replaced the bumper. The body shop did disconnect the battery for about a day.

Any thoughts?

BTW, how does one reset the computer?
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post #2 of 2 (permalink) Old 11-25-2006, 01:04 PM
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It could be a couple of things. But the easiest way to find out would be to have the codes pulled to see if there is communication with the parking aid module or if it is a damaged or incorrectly installed sensor. Here is a list of a couple systems and things for you to look for before taking it back to them to fix.

Symptom Chart Condition Possible Sources Action
No communication with the parking aid module
Central junction box (CJB) fuse 27 (15 A)
Parking aid module
Go To Pinpoint Test A.

The parking aid is inoperative/does not operate correctly
Parking aid sensor alignment
Parking aid switch
Parking aid module
Go To Pinpoint Test B.

Continuous or intermittent tone when no obstacles or fault codes are present (certain obstacles may appear "stealthy" to the system, depending on geometric shape, size and material)
Dirty or iced over parking aid sensor(s)
CLEAN the rear bumper and sensors with high-pressure water.

Parking aid sensor bezel(s) or parking aid sensor(s) locked into the rear bumper incorrectly
INSTALL the parking aid sensor bezel(s) into the rear bumper correctly. INSTALL the parking aid sensor(s) into the parking aid sensor bezel(s) correctly.

Parking aid sensors are not aligned correctly
CARRY OUT the azimuth check. REFER to Azimuth System Check in this section. Go To Pinpoint Test E.

2006 F250 XLT 6.0 CC Shortbed auto with Leer cap and fire engine red. Stock everything but running a
SCT Xcal2 tuned by Innovative Diesel. :smoke
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