DTC P0A78-523 Drive Motor "A" Inverter Performance: Description

Refer to the description of the inverter. (See DTC P0A78-266 DRIVE MOTOR "A" INVERTER PERFORMANCE: DTC P0A78-267 DRIVE MOTOR "A" Inverter Performance )

DIAGNOSTIC TROUBLE CODE CHART

DTC No.	INF Code	DTC Detection Condition	Trouble Area
P0A78	523	Inverter voltage (VH) sensor offset malfunction	HV relay assembly w/ converter inverter assembly

HINT:

Turning the ignition switch off causes the voltage in the inverter to discharge. The inverter voltage is almost 0 V after discharge. The DTC will be stored if the inverter voltage is more than the specified value after discharge.

Fig 1: Description Of Driver Motor "A" Inverter Performance Graph