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Home >> Lexus >> 2024 >> RX 500h >> Repair and Diagnosis >> External Pages >> Different car >> Section 145 (Motor Generator Control System - Diagnostic Codes (5 Of 5)) >> MOTOR GENERATOR CONTROL SYSTEM (for THS-HEV Model) >> DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0293-87: Lost Communication With Hybrid Powertrain Control Module Missing Message; DTC U1170-08: Lost Communication with Brake System Control Module (ch2) Bus Signal / Message Failure; DTC U1170-87: Lost Communication With Brake System Control Module(ch2) Missing Message [10/2022 - ] >> Monitor Strategy

Monitor Strategy

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.
Related DTCs U0100 (INF U0100-87): Lost Communication With ECM/PCM
U0293 (INF U0293-87): Lost Communication With Hybrid Control Module
U1170 (INF U1170-87): Lost Communication With Brake System Control Module
Required sensors/components Motor generator control ECU
Frequency of operation Continuous
Duration TMC's intellectual property
MIL operation Immediately
Sequence of operation None
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