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Home >> Lexus >> 2024 >> RX 500h >> Repair and Diagnosis >> External Pages >> Different car >> Section 21 (Hybrid Control System - Diagnostic Codes (1 Of 7)) >> HYBRID CONTROL SYSTEM (for THS-HEV Model) >> DTC P0A1B-94: Drive Motor "A" Control Module Unexpected Operation [10/2022 - ] >> Monitor Description

Monitor Description

WARNING: This page is about a different car, the 2025 Lexus RX 350h, 2024 Lexus RX 350h, and 2023 Lexus RX 350h. However, it is still accessible from the selected car via links, so may be relevant.

The hybrid vehicle control ECU monitors the motor generator control ECU (MG ECU). If the internal operation is malfunctioning, the hybrid vehicle control ECU illuminates the MIL and stores a DTC.

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