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Home >> Toyota >> 2004 >> Prius >> Repair and Diagnosis (Single Page) >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System - Diagnosis >> DTC P0A1D/166: Hybrid Powertrain Control Module, DTC P0A1D/167 Hybrid Powertrain Control Module, DTC P0A1D/197 Hybrid Powertrain Control Module, DTC P0A1P/200 Hybrid Powertrain Control Module >> Circuit Description
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Circuit Description

The HV control ECU performs self-checks to detect an internal operating malfunction in the ECU.

Fig 1: DTC P9A1D Circuit Description
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