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Home >> Lexus >> 2024 >> RX 500h >> Repair and Diagnosis >> External Pages >> Different car >> Section 138 (Hybrid Control System - Diagnostic Codes (6 Of 7)) >> HYBRID CONTROL SYSTEM (for PHEV Model) >> DTC P3123-87: Lost Communication with Drive Motor Control Module "A" from Hybrid/EV Control Module Missing Message [08/2023 - ] >> Monitor Strategy

Monitor Strategy

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.
Related DTCs P3123 (INF P3123-87): Lost Communication with Drive Motor "A" Control Module Verify communication
Required sensors / components Main: Hybrid vehicle control ECU
Sub: Hybrid motor control inverter assembly
Frequency of operation Continuous
Duration TMC's intellectual property
MIL operation Immediately
Sequence of operation None
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