Monitor Description

P0A1B (INF 505):

If excessive current flows through the motor inverter due to an internal short, the motor inverter will transmit an inverter fail signal to the MG ECU. The MG ECU will send information about the malfunction to the hybrid vehicle control ECU assembly. Upon receiving this information, the hybrid vehicle control ECU assembly will illuminate the MIL and store a DTC.

P0A1B (INF 806):

The MG ECU monitors the motor inverter electric current. If the current exceeds the threshold level for a specified period of time, the hybrid vehicle control ECU assembly will illuminate the MIL and store a DTC.