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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 P0A90-251: Drive Motor "A" Performance >> Monitor Description

Monitor Description

The MG ECU monitors MG2. If the MG ECU detects a reduction in the magnetic force of MG2 or an inphase short, it interprets this as an MG2 failure. The power management control ECU (HV CPU) will illuminate the MIL and set a DTC.