2017 Third Brake Light- Hardwire?

[In4Par1987]

Hello, 2017 Ford Edge SEL, my third brake light was partially lit for my annual inspection. It has since quit working entirely,  to which I researched and find the go out frequently. I bought a new light and had it replaced, to find out that I have a wiring issue somewhere from the the BCM under the dash back to the hatch plug.

Trying to avoid paying a dealer to go on a wiring journey, in which they want to remove my seats/carpet andwon't quote me an exact cost.  Could I potentially hardwire this to one of the rear brake light wires in the hatch? I'm not totally sure how the turn signals figure in or power draw etc. 

 

Thanks!

[Wubster100]

Text sourced from @Haz
 

Field Effect Transistor (FET) Protection

The BCM utilizes an Field Effect Transistor (FET) protective circuit strategy for many of its outputs, for example, lamp output circuits. Output loads (current level) are monitored for excessive current (typically short circuits) and are shut down (turns off the voltage or ground provided by the module) when a fault event is detected.

 

A Field Effect Transistor (FET) is a type of transistor that the control module software uses to control and monitor current flow on module outputs. The Field Effect Transistor (FET) protection strategy prevents module damage in the event of excessive current flow.

 

Output loads (current level) are monitored for excessive current draw (typically short circuits). When a fault event is detected the Field Effect Transistor (FET) turns off and a short circuit DTC sets. The module resets the Field Effect Transistor (FET) protection and allows the circuit to function when the fault is corrected or the ignition state is cycled off and then back on.

 

When the excessive circuit load occurs often enough, the module shuts down the output until a repair procedure is carried out. Each Field Effect Transistor (FET) protected circuit has three predefined levels of short circuit tolerance based on a module lifetime level of fault events based upon the durability of the Field Effect Transistor (FET). If the total tolerance level is determined to be 600 fault events, the three predefined levels would be 200, 400 and 600 fault events.

 

When each level is reached, the DTC associated with the short circuit sets along with DTC U1000:00. These Diagnostic Trouble Codes (DTCs) can be cleared using the module on-demand self-test, then theClear DTC operation on the scan tool (if the on-demand test shows the fault corrected). The module never resets the fault event counter to zero and continues to advance the fault event counter as short circuit fault events occur.

 

If the number of short circuit fault events reach the third level, then Diagnostic Trouble Codes (DTCs) U1000:00 and U3000:49 set along with the associated short circuit DTC . DTC U3000:49 cannot be cleared and the module must be replaced after the repair.

Edited August 31 by Wubster100

[enigma-2]

I realize this is ancient, but if you are still experiencing the problem, one area to suspect first is the connector that plugs into the light. Check for green fuzzys (corrosion), even a small amount can cause problems.