Caution / Notice / Hint
- Vehicle Control History may be stored in the hybrid vehicle control ECU if the engine is malfunctioning. Certain vehicle condition information is recorded when Vehicle Control History is stored. Reading the vehicle conditions recorded in both the freeze frame data and Vehicle Control History can be useful for troubleshooting.
for THS-HEV Model: Refer to VEHICLE CONTROL HISTORY (RoB) [10/2022 - 10/2024] , or refer to VEHICLE CONTROL HISTORY (RoB) [10/2024 - ]
for PHEV Model: Refer to VEHICLE CONTROL HISTORY (RoB) [08/2023 - ]
(Select Powertrain in Health Check and then check the time stamp data.)
- If any "Engine Malfunction" Vehicle Control History item has been stored in the hybrid vehicle control ECU, make sure to clear it. However, as all Vehicle Control History items are cleared simultaneously, if any Vehicle Control History items other than "Engine Malfunction" are stored, make sure to perform any troubleshooting for them before clearing Vehicle Control History.
for THS-HEV Model: Refer to VEHICLE CONTROL HISTORY (RoB) [10/2022 - 10/2024] , or refer to VEHICLE CONTROL HISTORY (RoB) [10/2024 - ]
for PHEV Model: Refer to VEHICLE CONTROL HISTORY (RoB) [08/2023 - ]
HINT:
When this DTC is output, check the engine coolant temperature using the GTS. Enter the following menus: Powertrain / Engine / Data List / Coolant Temperature. If the value of Coolant Temperature is lower than the actual engine coolant temperature, the engine coolant temperature sensor circuit may be malfunctioning. In this case, check the wire harnesses and connectors (and their connection condition) between the ECM and the engine coolant temperature sensor first.