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Home >> Lexus >> 2024 >> TX 350 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 104 (Engine Control System - Diagnostic Codes (5 Of 7)) >> SFI SYSTEM (for 1Motor-HEV Model) >> DTC P0C73-96: Motor Electronics Coolant Pump "A" Component Internal Failure [09/2023 - ] >> DTC Summary

DTC Summary

WARNING: This page is about a different car, the 2024 Lexus TX 500h. However, it is still accessible from the selected car via links, so may be relevant.
  1. MALFUNCTION DESCRIPTION 

    This DTC is stored when the inverter water pump assembly is malfunctioning. The cause of this malfunction may be one of the following:

    Inverter water pump assembly malfunction 

    • Inverter water pump assembly internal malfunction
    • Open or short in wire harness
    • Improperly connected connector

    Hybrid cooling system malfunction 

    • Foreign matter in inverter water pump assembly
    • Hybrid cooling system coolant is frozen

    HINT: 

    If this DTC is stored, the driving torque may be restricted.