Currently used for the 8HP gearbox control to command a gear 1 lockout, which means when activated, the 8HP gearbox will not go into gear 1, it will start in gear 2 and you can never go into gear 1.
Make sure the digital input is active when the TCU is started, otherwise it might go into gear 1 the first time.
Note: Will require the 8HP TCU firmware (003) flash or higher.
