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Home >> Toyota >> 2019 >> RAV4 LE, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 48 (Hybrid Control System (Lithium-Ion Battery) - Circuit Tests (2 Of 2)) >> HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY) >> Cooling System [06/2020 - ] >> Description

Cooling System [06/2020 - ]: Description

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The cause of the malfunction may be the cooling system.

Check whether the grille is blocked, whether coolant is leaking, the radiator fan operating condition and whether coolant has frozen.

RELATED PARTS CHECK

Area Inspection
Grille blockage, coolant amount, coolant hoses, radiator fan Check for overheating due to hybrid cooling system malfunction.
Inverter coolant temperature sensor (built-in inverter) Check for temperature sensor malfunction.
Coolant freezing check Check freeze frame values to determine whether the hybrid coolant was frozen when the DTC was stored.
RELATED DATA LIST

Data List
  • Inverter Coolant Water Temperature
  • Motor Inverter Temperature
  • Rear Motor Inverter Temperature
  • Generator Inverter Calculated Temperature
  • Boosting Converter Temperature (Upper)
  • Boosting Converter Temperature (Lower)
  • Ambient Temperature
  • Inverter Water Pump Revolution
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