Triggers the ECU Power Hold relay output when active.
When the input is deactivated, the engine is immediately stopped by fuel/ign cut, but the Power hold relay is held active for an additional time to finish homing idle stepper motors, running cooling fans etc.
When the time expires the power hold relay is released and the power to the ECU is cut.
Note: The power hold function needs to be active for this to work on the ECU side.
see, wiring power hold relay.
