DTC    P0A78-586    Drive Motor "A" Inverter Performance

for Preparation Click here


DESCRIPTION

Refer to the description of the inverter. (Click here)

DTC No.
INF Code
DTC Detection Condition
Trouble Area
P0A78
586
Inverter voltage (VH) sensor performance problem
w/ converter inverter assembly

MONITOR DESCRIPTION

The HV control ECU monitors the inverter voltage (VH) sensor signal. If the HV control ECU detects a fault in the sensor signal, the HV control ECU interprets this as a VH sensor failure. The HV control ECU then illuminates the MIL and sets a DTC.

INSPECTION PROCEDURE

1.READ OUTPUT DTC (HV)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to the ON position.

  1. Select the following menu items: Powertrain / Hybrid Control / DTC.

  1. Read output DTCs. (Click here)

    Result:
    The DTCs shown in the table below are output:

    DTC No.
    		Relevant Diagnosis
    P0A1A, P0A1B
    		MG-ECU circuit malfunction
    P0A1D
    		HV ECU circuit malfunction



YES
GO TO DTC CHART
NO

REPLACE W/ CONVERTER INVERTER ASSEMBLY