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Home >> Toyota >> 2012 >> Prius V >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System [Diagnostic Codes (P0A78-121 - P0AA1-233)] >> Hybrid Control System >> DTC P0A94-589: DC / DC Converter Performance; DTC P0A94-590: DC / DC Converter Performance >> Description

DTC P0A94-589: DC / DC Converter Performance; DTC P0A94-590: DC / DC Converter Performance: Description

The MG ECU uses a voltage sensor that is built into the boost converter to detect pre-boost high voltage (VL) to allow boost control. The MG ECU monitors the boost converter voltage sensor signal line and detects the following malfunctions.

DTC No. INF Code DTC Detection Condition Trouble Area
P0A94 589 Open or short to GND in the boost converter voltage (VL) sensor circuit Inverter with converter assembly
P0A94 590 Short to +B in the boost converter voltage (VL) sensor circuit