Fuel Pump Shut-off Feature: Notes

When the fuel cutoff algorithm threshold is reached or an airbag is deployed the RCM changes state of the ENS signal to a fuel cutoff state to the BCM and also issues a fuel cut-off CAN message that is used by both the BCM and PCM modules. The BCM then deactivates the Electronic Fuel Pump Relay (EFPR), which then cuts power to the fuel tank pump. The CAN message is used also by the PCM to issue a Fuel Pump control signal to the EFPR to cut fuel pump power. The Fuel cutoff signal to the PCM is used to shut-off the engine and shut-off power to the pressure valve on the high pressure pump.

In the event of a moderate to severe collision, this vehicle includes a fuel pump shutoff feature that stops the flow of fuel to the engine. Not every impact will cause a shutoff.

Should the vehicle shut off after a collision, the vehicle may be restarted by: