DTC P0A78-510 Drive Motor "A" Inverter Performance: Description
WARNING: This page is about a different car, the 2006 Lexus RX 400h. However, it is still accessible from the selected car via links, so may be relevant.
Refer to the description of the inverter. (See DTC P0A78-266 DRIVE MOTOR "A" INVERTER PERFORMANCE: DTC P0A78-267 DRIVE MOTOR "A" Inverter Performance )
Upon receiving a motor gate shutdown signal from the MG ECU, the inverter forcibly stops the Motor by turning off all power transistors that are actuating the Motor.
The MG ECU monitors the motor gate shutdown signal line and detects a malfunction.
DIAGNOSTIC TROUBLE CODE CHART
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A78 | 510 | Motor inverter gate malfunction | w/ converter inverter assembly (MG ECU) |
HINT:
- If DTC P0A78-510 is output, the hybrid system cannot be restarted until the DTC is cleared.
- If the malfunction is not reproduced, put the vehicle into the READY-on state and leave the vehicle for 1 minute with the shift lever in the P or N position in order to easily reproduce the malfunction.