Back up sensor problem
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Fleet Mechanic
Joined: May 2011
Posts: 1,866
Likes: 84
From: Rainier OR
Back up sensor problem
2006 f350. Whenever it rains my parking aid off light will come on while driving. Sometimes I can turn it back on by pressing the botton. I have tried spaying things with a garden hose to duplicate, but I can't make the light come on. Anyone one have simular problem? I tried searching but nothing like this comes up.
Thanks
Thanks
Post Fiend
Joined: Mar 2015
Posts: 5,277
Likes: 32
From: Blairsville, Pennsylvania
Here's a link that might help. Talks about the connections, corrosion, or moisture in the sensor (use a hair dryer)
Ford Excursion Reverse Sensing System
Ford Excursion Reverse Sensing System
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Fleet Mechanic
Joined: May 2011
Posts: 1,866
Likes: 84
From: Rainier OR
Checked for cracks, all of them look fine. Checked and all the sensors are working. Flooded both sides of the sensors with water from a garden hose, still working fine. What is different than most of the problems others have is the "off" light comes on while I am driving, not when backing up.
Cargo Master
Joined: Jul 2009
Posts: 2,710
Likes: 77
From: Central Florida
I think those sensors actually made a faint click sound when the vehicle was in reverse. No click means a bad sensor. There is a PAM, park aide module, some place in your truck. It's job is to communicate with the sensors. If the PAM has issues with sensors it will just shut down, giving you the off message on your display.
Those early sensors were trouble prone. You could probably find a new set of Ford sensors on eBay for less than $100. They are very easy to replace.
Those early sensors were trouble prone. You could probably find a new set of Ford sensors on eBay for less than $100. They are very easy to replace.
Thread Starter
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Fleet Mechanic
Joined: May 2011
Posts: 1,866
Likes: 84
From: Rainier OR
I think those sensors actually made a faint click sound when the vehicle was in reverse. No click means a bad sensor. There is a PAM, park aide module, some place in your truck. It's job is to communicate with the sensors. If the PAM has issues with sensors it will just shut down, giving you the off message on your display.
Those early sensors were trouble prone. You could probably find a new set of Ford sensors on eBay for less than $100. They are very easy to replace.
Those early sensors were trouble prone. You could probably find a new set of Ford sensors on eBay for less than $100. They are very easy to replace.
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Fleet Mechanic
Joined: Nov 2011
Posts: 1,825
Likes: 43
From: Land of Taxes
PAM is/should be under the dash. Doubt it got wet. If you have not found any faults back at the bumper and where the bumper harness connects to the chassis harness by the spare then follow the wire loom into the cab. The PAM will be at this end. You could have a bad PAM. Might be worth a trip to the stealership to have that system read. Note if you need a new PAM I think you need to have the dealer force feed the new code in. On my 11 you cant just plug in a new PAM.
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