DTC U0121: Lost Communication With Anti-Lock Brake System (ABS) Control Module: DTC Detecting Condition

U0121 LOST COMMUNICATION WITH ANTI-LOCK BRAKE SYSTEM (ABS) CONTROL MODULE

Item	Detecting Condition	Possible Cause
DTC Strategy	Check signal	CAN communication line open of ABS side CAN communication line short of ABS side ABS ECU Mechatronics (E-module + Valvebody)
Enable Conditions	0.5 second after IG ON Battery voltage > 9V
Threshold Value	No message from ECM Input Not available data
Diagnostic Time	0.56 second
Fail Safe	(Priority: 2)