tucker ray
Member
I've gotten a lot of help from here so I'll try to give some back. Even if it just helps the owners from either side of the KY assembly line.
2015 Ford Expedition EL XLT, 149,***
Problem:
I kept getting a TPMS Module Fault, and when the fault light would go off, my back up sensors wouldn't beep (camera still worked), and my key fob would not lock nor unlock the car. Randomly the light would disappear, and then my key would work and the back up sensors would hollar. I noticed when I would disconnect the battery to do work, it would almost always work like it was supposed to for a short while, before returning to the faulty state.
Solution:
I broke down and bought the wiring guide for the car (cannot understate how surprisingly useful it is). After poking through, I happened across the ground wirings and it turns out the Parking Aid Module, Tire Pressure Monitor Module, and Remote Function Actuator Module are all on the same ground. I pulled a bit of trim (and broke some retaining tabs) before I found the issue. There is a connector in the line, located in the third row cup holder, drivers side (pic 1). The ground wire was not fully seated in the connector, which was leading to intermittent signals.
To remove cupholder, just pull it straight up.
Connector in question:
I pulled up on the gray retaining bar and pulled the two pieces apart. There is one wire that is solid black, indicating the ground wire (arrowed pic below). I pressed that wire in and felt it click in and grab. No problems since. Not fully seated wires in connectors is the first troubleshooting tip in the wiring diagram. Hope it helps you.
2015 Ford Expedition EL XLT, 149,***
Problem:
I kept getting a TPMS Module Fault, and when the fault light would go off, my back up sensors wouldn't beep (camera still worked), and my key fob would not lock nor unlock the car. Randomly the light would disappear, and then my key would work and the back up sensors would hollar. I noticed when I would disconnect the battery to do work, it would almost always work like it was supposed to for a short while, before returning to the faulty state.
Solution:
I broke down and bought the wiring guide for the car (cannot understate how surprisingly useful it is). After poking through, I happened across the ground wirings and it turns out the Parking Aid Module, Tire Pressure Monitor Module, and Remote Function Actuator Module are all on the same ground. I pulled a bit of trim (and broke some retaining tabs) before I found the issue. There is a connector in the line, located in the third row cup holder, drivers side (pic 1). The ground wire was not fully seated in the connector, which was leading to intermittent signals.
To remove cupholder, just pull it straight up.
Connector in question:
I pulled up on the gray retaining bar and pulled the two pieces apart. There is one wire that is solid black, indicating the ground wire (arrowed pic below). I pressed that wire in and felt it click in and grab. No problems since. Not fully seated wires in connectors is the first troubleshooting tip in the wiring diagram. Hope it helps you.
