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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/188: Hybrid Powertrain Control Module, DTC P0A1D/189 Hybrid Powertrain Control Module, DTC P0A1D/192 Hybrid Powertrain Control Module, DTC P0A1P/193 Hybrid Powertrain Control Module, DTC P0A1P/195 Hybrid Powertrain Control Module, DTC P0A1P/196 Hybrid Powertrain Control Module, DTC P0A1P/565 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 motor CPU self-test.

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

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