P0A72-328

HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM: P0A72-326, P0A72-328, P0A72-333, P0A72-515, P0A75-334, P0A75-336, P0A75-341, P0A75-516: Generator Phase V Current
P0A75-516 - Generator Phase W Current

DESCRIPTION

The MG ECU located in the inverter with converter assembly monitors the generator inverter current sensors. P0A72 and P0A75 indicate malfunctions in the current sensors, and they do not indicate malfunctions in the high-voltage system.





MONITOR DESCRIPTION

The power management control ECU monitors the generator inverter current sensor. If the power management control ECU detects a fault, it 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 (READY) and turn the Techstream on.

6. With the vehicle stopped and shift lever in P, move the shift lever to N, wait for 10 seconds and then move the shift lever to D. [A]

NOTICE:
Do not leave the vehicle for an extended time with the shift lever in N.

7. Slowly accelerate from a stop (0 km/h (0 mph)) to 40 km/h (25 mph) several times while using different acceleration patterns. [B]

HINT
The vehicle should be driven with an accelerator opening of approximately 50%.

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

9. Check that permanent DTCs are cleared.

10. If the permanent DTCs are not cleared, perform the 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.

INSPECTION PROCEDURE

CAUTION:
- Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with converter assembly, take safety precautions such as wearing insulated gloves and removing the service plug grip to prevent electrical shocks. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
- After removing the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals. After waiting for 10 minutes, check the voltage at the terminals in the inspection point in the inverter with converter assembly. The voltage should be 0 V before beginning work Hybrid Control System: Precaution.
HINT
Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

NOTICE:
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work Service Precautions.

PROCEDURE

1. CHECK DTC OUTPUT (HYBRID CONTROL)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

(d) Check if DTCs are output.

Result:





(e) Turn the power switch off.

B -- GO TO DTC CHART (P0A7A-203) P0A7A-203
A -- Continue to next step.

2. CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR) P0343-747

NG -- CONNECT SECURELY

OK -- REPLACE INVERTER WITH CONVERTER ASSEMBLY Components