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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 - ] >> Monitor Description

Monitor Description

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.

The battery ECU assembly monitors the hybrid vehicle control ECU via CAN communication. If the battery ECU assembly detects a malfunction in the hybrid vehicle control ECU, it will illuminate the MIL and store a DTC.

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