Caution / Notice / Hint
WARNING: This page is about a different variant/trim than selected.
NOTE:
- Vehicle Control History may be stored in the hybrid vehicle control ECU assembly 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.
Refer to VEHICLE CONTROL HISTORY [02/2019 - ]
(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 assembly, 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.
Refer to VEHICLE CONTROL HISTORY [02/2019 - ]
HINT:
- When DTC P0524-77 is stored, it is determined that the engine oil pressure is low (severe) and the maximum engine speed is limited.
- When DTC P15F0-09 is stored, it is determined that the engine oil pressure is low (moderate) and the maximum engine speed is limited.
- When DTC P15F0-77 is stored, it is determined that the engine oil pressure is low (minor) and the maximum engine speed is limited.
- If the engine oil level is sufficient but a low engine oil level DTC is output, confirm with the customer whether engine oil was added after the vehicle had been driven with a low engine oil level.
- A DTC may be stored if the engine oil in the oil passages was contaminated with foreign matter, etc., in the past, as the ECM performs compulsory control of the oil pressure control valve assembly to remove foreign matter from the oil pressure control valve assembly.
- If an incorrect engine oil viscosity is used, a DTC related to low oil pressure, etc., may be stored.
- Read Freeze Frame Data using the Techstream. The ECM records vehicle and driving condition information as Freeze Frame Data the moment a DTC is stored. When troubleshooting, Freeze Frame Data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.