DTC U0100: Lost Communication With ECM / Pcm "A"; DTC U0122: Lost Communication With Vehicle Dynamics Control Module; DTC U0140: Lost Communication With Body Control Module; DTC U0155: Lost Communication With Instrument Panel Cluster (IPC) Control Module [05/2014 - ]: Description

The TCM receives and transmits signals from each ECU using CAN communication.

HINT:

Problems on the CAN Bus (communication line) can be detected from the DLC3 connector (Except when the DLC3 branch line is open).
By using the Techstream, it is possible to check CAN communication DTC.
The DLC3 is connected to the CAN communication line, but the CAN communication is unable to detect problems on the DLC3 branch line.

DTC No.	DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other	Trouble Area
U0100	CAN Bus is normal. Signal from the ECM is interrupted. 500 ms, 800 ms, 2000 ms (differs depending on ID) 1-trip detection logic	CAN communication system
U0122	CAN Bus is normal. Signal from the skid control ECU (brake actuator assembly) is interrupted. 800 ms 1-trip detection logic	CAN communication system
U0140	CAN Bus is normal. Signal from the main body ECU (network gateway ECU) is interrupted. 800 ms, 20000 ms (differs depending on ID) 1-trip detection logic	CAN communication system
U0155	CAN Bus is normal. Signal from combination meter assembly is interrupted. 2000 ms 1-trip detection logic	CAN communication system