Engine Shutdown Timer
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Vehicles equipped with the engine shutdown timer have an instrument panel cluster message and an audible alert that notifies the driver 30 seconds prior to engine shutdown. When the engine shutdown occurs, the PCM broadcasts a shutdown message to all the vehicle modules. One minute after the engine shutdown occurs, the body control module (BCM) (F-650/F-750) or the circuit deactivation ignition module (CDIM) (all others) electrically changes the ignition state to OFF and the vehicle goes into the normal delay accessory mode.
Engine shutdown occurs under the following conditions:
- Vehicle speed below 1.6 km/h (1 mph)
- Engine coolant temperature is greater than 15°C (60°F)
- Transmission in the PARK or NEUTRAL position
- Engine shutdown occurs in 5 minutes with the parking brake applied
- Engine shutdown occurs in 15 minutes without the parking brake applied
- The engine shutdown time may be increased in regeneration mode or scan tool mode (60 minutes maximum)
- Brake or accelerator pedal application in the 30 second window resets the engine shutdown timer
- Power take off (PTO) or auxiliary idle control system not active