U016C - Lost Communication With Fuel Pump Control Module B

DTC DESCRIPTION U016C - LOST COMMUNICATION WITH FUEL PUMP CONTROL MODULE B

Description:	The PCM monitors the FPM2 circuit for the presence of a duty cycled signal. If the FPM2 circuit is fixed at a low or high voltage, the PCM begins to increment a counter. This DTC sets when the PCM is still not detecting a duty cycled signal on the FPM2 circuit after a calibrated amount of time.
Possible Causes:	FPM2 circuit open or short to ground FPM2 circuit short to voltage VPWR fuel circuit open GND circuit open Damaged fuel pump control module relay 2
Diagnostic Aids:
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to Pinpoint Test KC.