HYBRID CONTROL SYSTEM, Diagnostic DTC:P0A7A-325 and P0A7A-810
| DTC Code | DTC Name |
|---|---|
| P0A7A-325 | Generator Inverter Performance |
| P0A7A-810 | Generator Inverter Performance |
DTC SUMMARY
MALFUNCTION DESCRIPTION
These DTCs indicate that a large current flowed in the inverter for the generator. The cause of this malfunction may be one of the following:
Internal inverter malfunction
Internal circuit malfunction in the inverter for the generator
Malfunction in the sensors for inverter control (current sensor, voltage sensor (VH, VL), etc.)
DESCRIPTION
For a description of the inverter.
If an abnormal amount of current flows through the generator inverter, the MG ECU detects it and sends a signal to inform the hybrid vehicle control ECU of the malfunction.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Warning Indicate |
|---|---|---|---|---|---|
P0A7A-325 |
Generator Inverter Performance |
Generator inverter fail signal detected (overcurrent due to inverter assembly malfunction): Overcurrent occurs in the generator inverter.* (1 trip detection logic) |
|
Comes on |
Master Warning Light: Comes on |
P0A7A-810 |
Generator Inverter Performance |
Abnormal generator inverter current value detected (inverter malfunction) (1 trip detection logic) |
|
Comes on |
Master Warning Light: Comes on |
*: The cause of the malfunction is most likely the inverter with converter assembly.
When a large current flows in the inverter and the current sensor and voltage sensors (VL, VH) are malfunctioning, this DTC is output.
CAUTION / NOTICE / HINT
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.
Tip:Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
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.
After the repair, clear the DTCs and perform the following procedure to check that DTCs are not output.
Turn the power switch on (READY) and wait for 5 seconds or more.
Drive the vehicle for approximately 10 minutes mainly using the engine.
PROCEDURE
CHECK DTC OUTPUT (HYBRID CONTROL)
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
Check for DTCs.
Powertrain > Hybrid Control > Trouble Codes
Result
Proceed to
P0A7A-203 is not output.
P0A7A-203 is also output.
Note:If P0A7A-203 is output, troubleshoot it first. After completing the troubleshooting for P0A7A-203, perform troubleshooting for this DTC.
Parts repaired or replaced during troubleshooting for P0A7A-203 do not need to be re-inspected in this diagnostic procedure.
Turn the power switch off.
CHECK DTC OUTPUT (HYBRID CONTROL)
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
Check for DTCs.
Powertrain > Hybrid Control > Trouble Codes
Tip:If P0A7A-203 was not output in step 1 of this diagnostic procedure, check Table 1 below.
If P0A7A-203 was output in step 1 of this diagnostic procedure, diagnose that DTC first, then check Table 2 below.
Result
Result
Proceed to
P0A7A-325 or 810 only is output, or DTCs except the ones in the tables below are also output.
A
Any of the following DTCs are also output.
B
Table 1
Malfunction Content
Relevant DTC
Microcomputer malfunction
P0A1A-151, 166, 658, 791
Generator Control Module
P0A1B-198, 786, 794
Drive Motor "A" Control Module
P0A1C-709, 710, 713, 797
Drive Motor "B" Control Module
P0A1D (all INF codes)*1
Hybrid Powertrain Control Module
P1C2A-155
Generator A/D Converter Circuit
P1C2B-192
Drive Motor "A" A/D Converter Circuit
P1C2C-706
Drive Motor "B" A/D Converter Circuit
P1CA6-156
Generator Control Module Malfunction
P1CA7-193
Drive Motor Control Module Malfunction
P1CA8-708
Drive Motor "B" Control Module Malfunction
P1CAC-200
Generator Position Sensor Angle Malfunction
P1CAD-168
Drive Motor "A" Position Sensor Angle Malfunction
P1CAE-715
Drive Motor "B" Position Sensor Angle Malfunction
P1CAF-792
Generator Position Sensor REF Signal Cycle Malfunction
P1CB0-795
Drive Motor "A" Position Sensor REF Signal Cycle Malfunction
P1CB1-798
Drive Motor "B" Position Sensor REF Signal Cycle Malfunction
P1CB2-793
Generator Position Sensor REF Signal Stop Malfunction
P1CB3-796
Drive Motor "A" Position Sensor REF Signal Stop Malfunction
P1CB4-799
Drive Motor "B" Position Sensor REF Signal Stop Malfunction
P3133-659
Communication Error from Generator to Drive Motor "A"
P3134-661
Communication Error from Drive Motor "A" to Generator
Power source circuit malfunction
P06B0-163
Sensor Power Supply "A" Circuit / Open
P06D6-511
Sensor Reference Voltage "F" Circuit / Open
P06E6-164
Sensor Power Supply "C" Circuit / Open
P1C73-512
Sensor Standard Voltage "F" Circuit / Open
Sensor and actuator circuit malfunction
P0A3F-243
Drive Motor "A" Position Sensor Circuit
P0A40-500
Drive Motor "A" Position Sensor Circuit Range / Performance
P0A41-245
Drive Motor "A" Position Sensor Circuit Low
P0A45-669
Drive Motor "B" Position Sensor Circuit
P0A46-671
Drive Motor "B" Position Sensor Circuit Range / Performance
P0A47-670
Drive Motor "B" Position Sensor Circuit Low
P0A4B-253
Generator Position Sensor Circuit
P0A4C-513
Generator Position Sensor Circuit Range / Performance
P0A4D-255
Generator Position Sensor Circuit Low
P0BEA-290
Drive Motor "A" Phase V Current Sensor Circuit Range / Performance
P0BEE-298
Drive Motor "A" Phase W Current Sensor Circuit Range / Performance
P0BF6-683
Drive Motor "B" Phase V Current Sensor Circuit Range / Performance
P0BFA-685
Drive Motor "B" Phase W Current Sensor Circuit Range / Performance
P0E05-328
Generator Phase V Current Sensor Circuit Range / Performance
P0E09-336
Generator Phase W Current Sensor Circuit Range / Performance
P1C3C-294
Drive Motor "A" Phase V Current Sensor Correlation
P1C3D-302
Drive Motor "A" Phase W Current Sensor Correlation
P1C3E-333
Generator Phase V Current Sensor Correlation
P1C3F-341
Generator Phase W Current Sensor Correlation
P1C4A-288
Drive Motor "A" Phase V Current Sensor Sub Circuit Range / Performance
P1C4F-296
Drive Motor "A" Phase W Current Sensor Sub Circuit Range / Performance
P1C54-326
Generator Phase V Current Sensor Sub Circuit Range / Performance
P1C59-334
Generator Phase W Current Sensor Sub Circuit Range / Performance
P1C6D-501
Drive Motor "A" Phase V Current Sensor Offset Range / Performance
P1C6E-502
Drive Motor "A" Phase W Current Sensor Offset Range / Performance
P1C6F-688
Drive Motor "B" Phase V Current Sensor Offset Range / Performance
P1C70-689
Drive Motor "B" Phase W Current Sensor Offset Range / Performance
P1C71-515
Generator Phase V Current Sensor Offset Range / Performance
P1C72-516
Generator Phase W Current Sensor Offset Range / Performance
P33C1-684
Drive Motor "B" Phase V Current Sensor Sub Circuit Range / Performance
P33C6-686
Drive Motor "B" Phase W Current Sensor Sub Circuit Range / Performance
P33D8-677
Drive Motor "B" Phase V Current Sensor Correlation
P33D9-678
Drive Motor "A" Phase W Current Sensor Correlation
System malfunction
P0C76-523
Hybrid Battery System Discharge Time Too Long
P0D2E-586
Drive Motor "A" Inverter Voltage Sensor Circuit Range / Performance
P0D2F-266
Drive Motor "A" Inverter Voltage Sensor Circuit Low
P0D30-267
Drive Motor "A" Inverter Voltage Sensor Circuit High
P0E32-585
DC/DC Converter Voltage Sensor "A" Range / Performance
P0E33-589
DC/DC Converter Voltage Sensor "A" Low
P0E34-590
DC/DC Converter Voltage Sensor "A" High
P1C2D-587
Hybrid Battery Voltage / DC/DC Converter Voltage Correlation
Table 2
Malfunction Content
Relevant DTC
Microcomputer malfunction
P0A1A-151, 166, 658, 791
Generator Control Module
P0A1B-198, 786, 794
Drive Motor "A" Control Module
P0A1C-709, 710, 713, 797
Drive Motor "B" Control Module
P0A1D (all INF codes)*1
Hybrid Powertrain Control Module
P1C2A-155
Generator A/D Converter Circuit
P1C2B-192
Drive Motor "A" A/D Converter Circuit
P1C2C-706
Drive Motor "B" A/D Converter Circuit
P1CA6-156
Generator Control Module Malfunction
P1CA7-193
Drive Motor Control Module Malfunction
P1CA8-708
Drive Motor "B" Control Module Malfunction
P1CAC-200
Generator Position Sensor Angle Malfunction
P1CAD-168
Drive Motor "A" Position Sensor Angle Malfunction
P1CAE-715
Drive Motor "B" Position Sensor Angle Malfunction
P1CAF-792
Generator Position Sensor REF Signal Cycle Malfunction
P1CB0-795
Drive Motor "A" Position Sensor REF Signal Cycle Malfunction
P1CB1-798
Drive Motor "B" Position Sensor REF Signal Cycle Malfunction
P1CB2-793
Generator Position Sensor REF Signal Stop Malfunction
P1CB3-796
Drive Motor "A" Position Sensor REF Signal Stop Malfunction
P1CB4-799
Drive Motor "B" Position Sensor REF Signal Stop Malfunction
P3133-659
Communication Error from Generator to Drive Motor "A"
P3134-661
Communication Error from Drive Motor "A" to Generator
Power source circuit malfunction
P06B0-163
Sensor Power Supply "A" Circuit / Open
P06D6-511
Sensor Reference Voltage "F" Circuit / Open
P06E6-164
Sensor Power Supply "C" Circuit / Open
P1C73-512
Sensor Standard Voltage "F" Circuit / Open
Sensor and actuator circuit malfunction
P0A3F-243
Drive Motor "A" Position Sensor Circuit
P0A40-500
Drive Motor "A" Position Sensor Circuit Range / Performance
P0A41-245
Drive Motor "A" Position Sensor Circuit Low
P0A45-669
Drive Motor "B" Position Sensor Circuit
P0A46-671
Drive Motor "B" Position Sensor Circuit Range / Performance
P0A47-670
Drive Motor "B" Position Sensor Circuit Low
P0A4B-253
Generator Position Sensor Circuit
P0A4C-513
Generator Position Sensor Circuit Range / Performance
P0A4D-255
Generator Position Sensor Circuit Low
P0BEA-290
Drive Motor "A" Phase V Current Sensor Circuit Range / Performance
P0BEE-298
Drive Motor "A" Phase W Current Sensor Circuit Range / Performance
P0BF6-683
Drive Motor "B" Phase V Current Sensor Circuit Range / Performance
P0BFA-685
Drive Motor "B" Phase W Current Sensor Circuit Range / Performance
P1C3C-294
Drive Motor "A" Phase V Current Sensor Correlation
P1C3D-302
Drive Motor "A" Phase W Current Sensor Correlation
P1C3E-333
Generator Phase V Current Sensor Correlation
P1C3F-341
Generator Phase W Current Sensor Correlation
P1C4A-288
Drive Motor "A" Phase V Current Sensor Sub Circuit Range / Performance
P1C4F-296
Drive Motor "A" Phase W Current Sensor Sub Circuit Range / Performance
P1C6D-501
Drive Motor "A" Phase V Current Sensor Offset Range / Performance
P1C6E-502
Drive Motor "A" Phase W Current Sensor Offset Range / Performance
P1C6F-688
Drive Motor "B" Phase V Current Sensor Offset Range / Performance
P1C70-689
Drive Motor "B" Phase W Current Sensor Offset Range / Performance
P33C1-684
Drive Motor "B" Phase V Current Sensor Sub Circuit Range / Performance
P33C6-686
Drive Motor "B" Phase W Current Sensor Sub Circuit Range / Performance
P33D8-677
Drive Motor "B" Phase V Current Sensor Correlation
P33D9-678
Drive Motor "A" Phase W Current Sensor Correlation
System malfunction
P0C76-523
Hybrid Battery System Discharge Time Too Long
P0D2E-586
Drive Motor "A" Inverter Voltage Sensor Circuit Range / Performance
P0D2F-266
Drive Motor "A" Inverter Voltage Sensor Circuit Low
P0D30-267
Drive Motor "A" Inverter Voltage Sensor Circuit High
P0E32-585
DC/DC Converter Voltage Sensor "A" Range / Performance
P0E33-589
DC/DC Converter Voltage Sensor "A" Low
P0E34-590
DC/DC Converter Voltage Sensor "A" High
P1C2D-587
Hybrid Battery Voltage / DC/DC Converter Voltage Correlation
Tip:*1: If any INF codes are output for this DTC, refer to the corresponding diagnostic procedure.
P0A7A-325 or P0A7A-810 may be output as a result of the malfunction indicated by the DTCs above.
-
The chart above is listed in inspection order of priority.
Check DTCs that are output at the same time by following the listed order. (The main cause of the malfunction can be determined without performing unnecessary inspections.)
Turn the power switch off.
CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR)
Result
Result
Proceed to
OK
A
NG (The connector is not connected securely.)
B
NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.)
C
B CONNECT SECURELY
C REPAIR OR REPLACE HARNESS OR CONNECTOR