I bet it's being twisted when it's torqued down. After that many screens, and the failure type you are having, I'd look at an uneven surface it's being mounted to.
If you look at his printout you can see they used a conductance type tester, not a carbon pile load tester.
https://www.autometer.com/bva-360;-hand-held-battery--electrical-system-tester.html?srsltid=AfmBOooLfevzpe5IRwfGCKbH6sgjK-fLSJTCxEgfWANcE3DT6Q-nmrhb
When you use a conductance tester you are supposed to put the clamps right on the lead terminals of the battery, not the steel cable clamps. It makes a difference.
I was lucky that the transmission and the heater box both failed under warranty so I didn't sign up for an extension. If they hadn't.....I still wouldn't since I do my own repairs. But YMMV (your monkey may vibrate).
Boy do I wish I had this truck in my shop. This set of codes looks very interesting. I have Forscan but I never really use it, all my troubleshooting is done with IDS/FDRS. If I had it in my shop, I would erase the codes (after noting them) and do a key-off-engine-off test. Hopefully Forscan has...
With those codes I would be running the harness visually and by feel everywhere that engine R+R would require disconnecting or mving aside a harness. Don't forget the bellhousing area, that's a favorite place for a butcher to sandwich wires on installation.
Once a year I take the shield off the top of the radiator and clean the leaves and junk between the condensor and the radiator. I use a shop vac with a length of skinny (5/8"?) tubing duct taped to the hose to suck out all the crap in there. If you look in the front of the grill it will look...
If you look in the service manual under 'Reference Values', the normal LTFT is a whopping -20 to +20%. STFT are -10 to +10%. What is the symptom they are trying to fix? Is it poor mileage? If the truck is NOT throwing a check engine light, what is the chief complaint?
The drain plugs for the trucks in NA have one-time-use crush washers. No sealer is used. My wife's Escape uses sealer on the PTU (basically a transfer case) so maybe Australia uses the same set up?