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Home >> Lexus >> 2017 >> RX 450h Base >> Repair and Diagnosis (Single Page) >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System (Diagnostic Codes) (3 Of 10) >> Hybrid Control System >> DTC P0A1C-693: Drive Motor "B" Control Module; DTC P0A1C-812: Drive Motor "B" Control Module [10/2015 - ] >> Monitor Description
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Monitor Description

P0A1C (INF 693):

If excessive current flows through the rear motor inverter due to an internal short, the rear motor inverter will transmit an inverter fail signal to the MG ECU. Upon receiving this signal, the hybrid vehicle control ECU assembly will illuminate the MIL and store a DTC.

P0A1C (INF 812):

The MG ECU monitors the rear motor inverter electric current. If the current exceeds the threshold level for a specified period of time, the hybrid vehicle control ECU assembly will illuminate the MIL and store a DTC.