i have had my truck for a month now and i can not seam to get the back up sensors to work. i have done what the book tells me to do and i have checked all the fuses and it is still not working. i would like to work. can some one please help me.

 

can you post some specs on your truck or complete your profile ?

 

yes sorry. i have an 04 lariat 4x4 extend cab

 

You checked Fuse # 102 with a meter on both sides, and it is good.

What are the symptoms that the Park Aid has ?

 

well the light is on all the time but i can not get the aid to turn on. when i try it will flash at me at times.

 

I am going to take a complete SWAG that the harness for the sensors has an issue or the lens on the sensors is scratched too bad.

The harness under the back of the truck can get corroded or damaged at times ( few threads on it in this sub-forum and the 2004-2008 sub-forum ) and the PAM ( Park Aid Module ) cannot access the sensors, so it shuts off.

The other thing can be scratched sensor covers, and the sensors will not pass self test and shut off ( simulates a malfunction to the PAM ).

Start by checking the connectors to the park aid sensors, and where the harness is plugged into the truck's harness under the back of the truck behind the bumper. The sensors remove from under the truck behind the bumper, not through the face of the bumper. remove them and check each sensor for damage, as well as the connectors.

 

ok thanks i will do that and let u know if i find anything.

 

ok i looked at everything and there is no corrosion and there is no bick scraches anywhere. everything looks like it is in great condition.