STEP 1. Using scan tool (M.U.T.-IIISE), check whether the other DTC is set.
STEP 2. Using scan tool (M.U.T.-IIISE), check the data list.
STEP 3. Check the signal line for damage, open, short to ground and short to power supply circuit (EV coolant temperature sensor connector and the PHEV-ECU connector).
STEP 4. Check the ground line for damage, open, short to ground and short to power supply circuit (EV coolant temperature sensor connector and the PHEV-ECU connector).
STEP 5. EV coolant temperature sensor check
STEP 6. Test the OBD-II drive cycle.
STEP 7. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to Diagnostic Function - OBD-II Drive Cycle - Pattern 9 . (2) Check the DTC.
Is the DTC set?
Retry the troubleshooting. The procedure is complete.