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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 60 (Hybrid Control System (AWD) - Circuit Tests (2 Of 2)) >> HYBRID CONTROL SYSTEM (for AWD) >> Inverter Low-voltage Circuit [12/2019 - 11/2023] >> Description

Inverter Low-voltage Circuit [12/2019 - 11/2023]: Description

WARNING: This page is about a different variant/trim than selected.

The cause of the malfunction may be the low-voltage circuit.

Check whether there is an open circuit in the inverter +B low-voltage power source system or a problem in the communication between the hybrid vehicle control ECU and inverter.

RELATED PARTS CHECK

Area Inspection
Inverter +B low-voltage power source system check Check for inverter overcurrent malfunction.
Communication malfunction between hybrid vehicle control ECU and MG-ECU inside inverter with converter assembly Check for inverter overcurrent malfunction due to communication malfunction.
Check for short to ground in inverter +B low-voltage power source system -