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Home >> Lexus >> 2008 >> RX 400h AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 158 (Hybrid Vehicle Control (P310) - RX400H - DTC P0336-137 Through P0A32-666) >> DTC P0A1D-134 Hybrid Powertrain Control Module; DTC P0A1D-135 Hybrid Powertrain Control Module; DTC P0A1D-570 Hybrid Powertrain Control Module >> Monitor Description

Monitor Description

WARNING: This page is about a different car, the 2006 Lexus RX 400h. However, it is still accessible from the selected car via links, so may be relevant.

The HV control ECU performs diagnostic monitoring to verify proper operation of vehicle systems. One of these monitors the rationality of internal analog (signal) to digital conversions. The HV control ECU monitors the internal A/D (Analog/Digital Converter) value. If there is an A/D malfunction, the HV control ECU will illuminate the MIL and set a DTC.