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VT/BN is ignition switch sense wire.
WH/GN is security K line communication wire.
Both connect to Module, Radio-frequency hub.
When the RF-hub is happy that the key fob belongs to the truck and the transmission is in park signal is received from the BCM, the hub sends a run/start signal to the...
That same thing can be caused by marginal fuel quality, just a thought.
Happened to me, multiple cylinder misfires, rough idle on cold start`s, fine on consecutive starts when the engine was warm, bad fuel.
I also had one injector fail around 80K miles, caused a single cylinder misfire DTC.
Injectors are fairly easy to replace, cost around 60 bucks ea. Manifolds, depending on what side, take more effort.
Done both, I keep a spare injector in the toolbox.
Transmission Control Module (TCM) (8HP75) - ECU Not Initialized.
Most likely cleared the DTC because of the number of key cycles.
Batteries going bad play havoc with these trucks.
My map shows me in northern Canada, the satellite receiver and Wi-Fi died 4 years ago and I have been slowly drifting north ever since.
The clock is not keeping time either due to 0 satellites being picked up according to the display.
The fix would have been a refurbished radio to the tune of...
Pretty sure the daytime running lights need to be disabled in the BCM also, either with a J-scan or ALFA-OBD.
There has been several thread about that here, might try a search on the subject.
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