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Home >> Lexus >> 2006 >> RX 400h AWD >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Vehicle Control (P310) - RX400H - DTC P0336-137 Through P0A32-666 >> DTC P0A1D-139 Hybrid Powertrain Control Module >> Monitor Description

Monitor Description

The HV control ECU performs diagnostic monitoring to verify proper operation of vehicle systems. The inside of the HV control ECU is checked by one of these monitors for a bad integrated circuit which actuates a relay. If the HV control ECU detects a malfunction, it will illuminate the MIL and set a DTC.

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