DTC U1120: Failure Information on Powertrain Control Module (Related to Engine): Notes
CAUTION:
If DTC U1120 is set in the multi-center display unit (middle grade type), diagnose the CAN main bus line.
CAUTION:
- The engine control system-related DTC may be set when DTC U1120 is set. (For details refer to INTERSYSTEM AFFILIATED DTC REFERENCE TABLE .) Diagnose the engine control system first when the engine control system-related DTC is set.
- Before replacing the multi-center display unit (middle grade type), ensure that the power supply circuit and the ground circuit are normal.