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Home >> Lexus >> 2024 >> RX 500h >> Repair and Diagnosis >> External Pages >> Different car >> Section 23 (Hybrid Control System - Diagnostic Codes (1 Of 7)) >> HYBRID CONTROL SYSTEM (for PHEV Model) >> DTC P0A1F-94: Hybrid/EV Battery Energy Control Module Unexpected Operation [08/2023 - ] >> DTC Summary

DTC Summary

WARNING: This page is about a different car, the 2025 Lexus RX 450h+ and 2024 Lexus RX 450h+. However, it is still accessible from the selected car via links, so may be relevant.
  1. MALFUNCTION DESCRIPTION 

    The hybrid vehicle control ECU (main CPU) monitors the battery ECU assembly.

    The cause of this malfunction may be the following:

    Battery ECU assembly internal malfunction 

    • Battery ECU assembly malfunction
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