If the DTC U110A is set, diagnose the CAN bus lines.
When replacing the ECU, always check that the SRS circuit is normal.
FUNCTION
If the signal from PHEV-ECU cannot be received, the SRS-ECU sets the DTC U110A.
TROUBLE JUDGMENT
Because of the CAN-C bus circuit malfunction, if SRS-ECU becomes unable to perform the normal data transmission, SRS-ECU determines that an abnormality is present.