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Home >> Lexus >> 2022 >> LS 500h RWD >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System (W/ Advanced Park) - Diagnostic Codes (5 Of 5) & Circuit Tests (1 Of 2) >> HYBRID CONTROL SYSTEM (w/ Advanced Park) >> DTC P314A-31: Motor Electronics Coolant Pump "A" No Signal [11/2021 - 10/2023] >> Monitor Description

Monitor Description

The hybrid vehicle control ECU assembly monitors the speed of the inverter water pump assembly. If the inverter water pump speed signal is not sent to the hybrid vehicle control ECU assembly, the hybrid vehicle control ECU assembly will illuminate the MIL and store a DTC.