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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-140 Hybrid Powertrain Control Module >> Monitor Description

Monitor Description

The HV control ECU performs many diagnostic tests to verify proper operation of internal ECU systems. There is a check for errors after a memory read/write diagnostic test by one of these tests. If the HV control ECU detects this malfunction inside of the ECU, it will illuminate the MIL and set a DTC.

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