Caution / Notice / Hint

HINT: 

• DTC P148F-00 may be stored if the engine has continuously run with insufficient engine coolant. If the engine coolant is sufficient and DTC P148F-00 recur when the vehicle is brought to the workshop, confirm whether engine coolant was added after the vehicle had been driven with insufficient engine coolant.
• 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.