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Parksence troubles

2K views 4 replies 2 participants last post by  ronnie702 
#1 ·
I am having some issues with my parksense system on my 2012 grand cherokee altitude. it only has the sensors in the back and there is no park assist. when i got the truck, the rear bumper had been stolen. i ordered the bumper, 4 sensors and the harness. i am still getting the message on the dash that says service parksense and i cant turn the system on. i was wondering if anyone had a schematics of the parksense module so i can verify the harness is the right one. the one that goes with the vin for this truck comes up with just the rear fog lights. we crossed referenced the codes and found the harness that runs 4 sensors and thats it. but it didn't work. it still the same. i am wondering if it is the module or the harness is not right. on the 2 row of wires on the harness there is a wire coming off the main to the rear harness but no wire to meet it on the other end of the plug to the sensor harness. i don't know if it is supposed to be like that or not. i was looking under some jeeps in the lot and noticed there was some with 3 wires in the first row and others like mines. these 2 diffrent harnesses seam to be the only difference of the vehicles. there was nothing else hooked up to them but the park sensors. any advice or schematics
 
#4 ·
im interested to know as well, my 2011 limited wk2 had rear damage when I purchased it, so I bought a new rear bumper with sensors and all and it was off of the overland with blind spot sensors, the harness plugged right into my jeep though but since day 1 I always had service park sense message that I never bothered to address
 
#5 ·
Dealership was able to isolate it down to two bad senses that I purchased new so I replaced the two sensors and it worked fine now what's going on with yours is that if you don't have blind spot on your jeep it's not going to work with yours so what you have to do is go to the dealership and get the park senserear harness from the dealership which is pretty cheap and plug it into the four distance sensors that are in the bumper and don't worry about the two sensors on the side And it should work
 
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