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Home >> Toyota >> 2004 >> Matrix Base, FWD, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 532 (Hybrid Control System - Diagnosis) >> DTC P0A1D/150: Hybrid Powertrain Control Module, DTC POA1D/151 Hybrid Powertrain Control Module, DTC P0A1D/152 Hybrid Powertrain Control Module, DTC P0A1P/155 Hybrid Powertrain Control Module, DTC P0A1P/156 Hybrid Powertrain Control Module, DTC P0A1P/158 Hybrid Powertrain Control Module, DTC P0A1P/564 Hybrid Powertrain Control Module >> Monitor Description
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Monitor Description

WARNING: This page is about a different car, the 2004 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.

The HV control ECU performs many diagnostic tests to verify proper operation of internal and external ECU systems. In one of these diagnostics, the HV control ECU checks the result of the generator CPU self-test.

If the HV control ECU detects a "Fail" from the generator CPU self-test, it will conclude that there is an internal malfunction in the generator CPU. The HV control ECU will illuminate the MIL and set a DTC.

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