2014 Ford Focus Titanium, 4D Hatchback, Automatic DCT Trans, Gas/EthanolFACTORY OEM SERVICE PROCEDURE

U210C - Lost Communication Between Fuel Pump Control Module B And Restraints Control Module

U210C - LOST COMMUNICATION BETWEEN FUEL PUMP CONTROL MODULE B AND RESTRAINTS CONTROL MODULE

Description:  The fuel pump control module 2 monitors the duty cycle and frequency of the signal it receives from the restraints control module (RCM). The fuel pump control module 2 determines if the signal on the event notification signal (ENS) circuit from the RCM is a valid duty cycle and frequency. If the duty cycle or frequency is invalid, the fuel pump control module 2 sends a 40% duty cycle signal on the fuel pump monitor 2 (FPM2) circuit to report the concern to the PCM. The test fails when the fuel pump control module 2 is still reporting that it is receiving an invalid duty cycle or frequency from the RCM after a calibrated amount of time.
Possible Causes: 
  • ENS circuit open or short to ground
  • ENS circuit short to voltage
  • Radio frequency interference or electromagnetic interference
  • Damaged fuel pump control module 2
  • Damaged RCM
Diagnostic Aids:  Check the harness for routing, alterations, incorrect shielding, or electrical interference from other systems. The ENS is used to notify the fuel pump control module 2 of an event requiring the fuel pump to be disabled. This signal is used instead of an inertia fuel shutoff (IFS) switch. The fuel pump control module 2 monitors the ENS signal by sending a 12V low current signal on the ENS circuit to the RCM.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST KC: FUEL PUMP CONTROL MODULE .
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