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Home >> Toyota >> 2020 >> Highlander L, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 33 (Hybrid Control System - Diagnostic Codes (3 Of 5)) >> Hybrid Control System >> DTC P0C76-00: Hybrid/EV Battery System Discharge Time Too Long [11/2023 - ] >> DTC Summary

DTC Summary

WARNING: This page is about a different car, the 2025 Toyota Highlander and 2024 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
  1. MALFUNCTION DESCRIPTION 

    When the ignition switch is turned from ON (READY) to off, the hybrid vehicle control ECU detects that the high-voltage capacitor inside the inverter with converter assembly is not discharged.

    The cause of this malfunction may be one of the following:

    Inverter voltage sensor (VH) internal circuit malfunction 

    • Voltage sensor (VH) malfunction
    • Motor generator control ECU (MG ECU) malfunction
    • Communication (wire harness) malfunction

    High voltage system malfunction 

    1. Inverter with converter assembly malfunction

    Shutdown signal circuit malfunction 

    • Hybrid vehicle control ECU malfunction
    • Wire harness malfunction
    • Inverter with converter assembly malfunction