DTC P0A78-506 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 )

If the motor inverter has a circuit malfunction, overheat, or internal short, the inverter transmits this information to the MFIV terminal of the MG ECU via the motor inverter fail signal line.

DIAGNOSTIC TROUBLE CODE CHART

DTC No.	INF Code	DTC Detection Condition	Trouble Area
P0A78	506	Motor inverter overcurrent signal is detected (overcurrent by HV transaxle assembly malfunction)	Wire harness or connector Hybrid vehicle transaxle assembly w/ converter inverter assembly (MG ECU)