Part 1

HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM: P0A78-113: Drive Motor "A" Inverter Performance
P0A78-113 - Drive Motor "A" Inverter Performance

DESCRIPTION

For a description of the inverter P0A78-266.

If the motor inverter overheats, has a circuit malfunction, or has an internal short, the inverter transmits this information to the MG ECU via the motor inverter fail signal line.





MONITOR DESCRIPTION

If excessive amperage flows through the motor inverter due to an internal short, the motor inverter will transmit an inverter fail signal to the MG ECU. Upon receiving this signal, the power management control ECU (HV CPU) will illuminate the MIL and set a DTC.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS





TYPICAL MALFUNCTION THRESHOLDS





COMPONENT OPERATING RANGE





CONFIRMATION DRIVING PATTERN





1. Connect the Techstream to the DLC3.

2. Turn the power switch on (IG) and turn the Techstream on.

3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

4. Turn the power switch off.

5. Turn the power switch on (IG) and check that there are no abnormalities (abnormal sounds, coolant leaks, DTC output, etc).

6. Turn the power switch on (READY) and turn the Techstream on. [A]

7. With park (P) selected, wait for several seconds.

8. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes. [B]

9. Check that permanent DTCs are cleared.

10. If the permanent DTCs are not cleared, perform a universal trip, and then check for permanent DTCs again.

HINT
- If a permanent DTC is output, the system is malfunctioning.
- If no permanent DTC is output, the system is normal.

WIRING DIAGRAM

Refer to the wiring diagram for DTC P0A1A-200 P0A1A-200.

Refer to the wiring diagram for DTC P324E-788 P324E.

Refer to the wiring diagram for DTC U0110-159 U0110-159.