U210C Code: Meaning, Causes, and Symptoms | OBD2 Codes
U210C – Lost Communication Between Fuel Pump Control Module ‘B’ and Restraints Control Module
U210C Possible Symptoms
Engine Light ON (or Service Engine Soon Warning Light)
U210C Possible Causes
Event Notification Signal (ENS) harness is open or shorted,Event Notification Signal (ENS) circuit poor electrical connection,Radio frequency interference or electromagnetic interference,Faulty Restraints Control Module (RCM) 2,Faulty Fuel Pump Control Module
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 Powertrain Control Module (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.