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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 73 (Motor Generator Control System (AWD) - Diagnostic Codes (4 Of 5)) >> MOTOR GENERATOR CONTROL SYSTEM (for AWD) >> DTC P0C50-16: Drive Motor "A" Position Sensor Circuit "A" Circuit Voltage Below Threshold; DTC P0C50-17: Drive Motor "A" Position Sensor Circuit "A" Circuit Voltage Above Threshold; DTC P0C5A-16: Drive Motor "A" Position Sensor Circuit "B" Circuit Voltage Below Threshold; DTC P0C5A-17: Drive Motor "A" Position Sensor Circuit "B" Circuit Voltage Above Threshold [12/2019 - 11/2023] >> DTC Summary

DTC Summary

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

    These DTCs indicate an abnormal resolver output signal. The cause of this malfunction may be one of the following:

    Internal inverter malfunction 

    • Inverter with converter assembly internal circuit malfunction

    Inverter low-voltage circuit malfunction 

    • The connectors are not connected properly

    HINT: 

    If any of these DTCs is output, a malfunction of the circuit board of the motor generator control ECU (MG ECU) or poor installation of a low voltage connector is suspected. It is not necessary to inspect the motor resolver.

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