DTC U110F: Lost Communication With Roll Rate Sensor/Vertical Acceleration Sensor Module; DTC U1172: Lost Communication with Vehicle Dynamics Control Module (ch2) [11/2017 - 03/2019]: Description

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Note
U110F	Lost Communication With Roll Rate Sensor/Vertical Acceleration Sensor Module	No communication from the roll rate and vertical acceleration sensor continues.	Open or short in V3 bus main line or connector Short in V3 bus branch line or connector Open in roll rate and vertical acceleration sensor branch line or connector Skid control ECU (brake actuator assembly) ECM Torque vectoring differential ECU assembly (w/ Torque Vectoring Differential System) Roll rate and vertical acceleration sensor Open or short in No. 6 CAN junction connector Open or short in No. 8 CAN junction connector	HINT: As there is no sub bus monitor ECU for V3 bus, each ECU detects communication stops and stores DTCs.
U1172	Lost Communication with Vehicle Dynamics Control Module (ch2)	No communication from the skid control ECU (brake actuator assembly) continues.	Open or short in V3 bus main line or connector Short in V3 bus branch line or connector Open in torque vectoring differential ECU assembly branch line or connector Skid control ECU (brake actuator assembly) ECM Torque vectoring differential ECU assembly Roll rate and vertical acceleration sensor Open or short in No. 6 CAN junction connector Open or short in No. 8 CAN junction connector	HINT: As there is no sub bus monitor ECU for V3 bus, each ECU detects communication stops and stores DTCs.

HINT:

This diagnostic procedure is for when the torque vectoring differential ECU assembly (TVD) outputs only DTC U1172, the skid control ECU (brake actuator assembly) (ABS/VSC/TRAC) outputs only DTC U110F, or DTC U1172 and U110F are output simultaneously.