DTC P0A78-72: Drive Motor "A" Inverter Actuator Stuck Open: Notes
WARNING: This page is about a different variant/trim than selected.
1. -
Detecting condition:
Malfunction is detected when offset component occurs in current flowing through motor with one phase open malfunction
(1 trip detection logic)
Trouble symptom:
- Greatly reduced output power
- A driving range is limited
- Engine used while driving and engine speed becomes high
CAUTION:
Before performing diagnosis, refer to "CAUTION" in "General Description". Ref. to P-HEV DRIVE MOTOR (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION .
- CHECK DTC
.
Read the following DTCs using Subaru Select Monitor. Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) . Ref. to P-HEV DRIVE MOTOR (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .
- P-HEV Hybrid Powertrain Control
- P-HEV Drive Motor
NOTE:Malfunction contents System Related DTC Insulation malfunction P-HEV Hybrid Powertrain Control P1C7C49 HYBRID/EV BATTERY VOLTAGE SYSTEM ISOLATION (A/C AREA) INTERNAL ELECTRONIC FAILURE P1C7D49 HYBRID/EV BATTERY VOLTAGE SYSTEM ISOLATION (HYBRID/EV BATTERY AREA) INTERNAL ELECTRONIC FAILURE P1C7E49 HYBRID/EV BATTERY VOLTAGE SYSTEM ISOLATION (TRANSAXLE AREA) INTERNAL ELECTRONIC FAILURE P1C7F49 HYBRID/EV BATTERY VOLTAGE SYSTEM ISOLATION (DIRECT CURRENT AREA) INTERNAL ELECTRONIC FAILURE High voltage system failure P-HEV Hybrid Powertrain Control P0AD911 HYBRID/EV BATTERY POSITIVE CONTACTOR CIRCUIT SHORT TO GROUND P0AD915 HYBRID/EV BATTERY POSITIVE CONTACTOR CIRCUIT SHORT TO AUXILIARY BATTERY OR OPEN P0ADD11 HYBRID/EV BATTERY NEGATIVE CONTACTOR CIRCUIT SHORT TO GROUND P0ADD15 HYBRID/EV BATTERY NEGATIVE CONTACTOR CIRCUIT SHORT TO AUXILIARY BATTERY OR OPEN P1C8449 HIGH VOLTAGE POWER RESOURCE CIRCUIT SHORT DURING READY ON Microcomputer malfunction P-HEV Drive Motor P0A1A47 GENERATOR CONTROL MODULE WATCHDOG/SAFETY MC FAILURE P0A1A49 GENERATOR CONTROL MODULE INTERNAL ELECTRONIC FAILURE P0A1B1F GENERATOR CONTROL MODULE CIRCUIT INTERMITTENT P1C2A1C GENERATOR A/D CONVERTER CIRCUIT CIRCUIT VOLTAGE OUT OF RANGE P1C2A49 GENERATOR A/D CONVERTER CIRCUIT INTERNAL ELECTRONIC FAILURE P1C2B1C DRIVE MOTOR "A" CONTROL MODULE A/D CONVERTER CIRCUIT VOLTAGE OUT OF RANGE P1C2B49 DRIVE MOTOR "A" CONTROL MODULE A/D CONVERTER CIRCUIT INTERNAL ELECTRONIC FAILURE P313383 COMMUNICATION ERROR FROM GENERATOR TO DRIVE MOTOR "A" VALUE OF SIGNAL PROTECTION CALCULATION INCORRECT P313386 COMMUNICATION ERROR FROM GENERATOR TO DRIVE MOTOR "A" SIGNAL INVALID P313387 COMMUNICATION ERROR FROM GENERATOR TO DRIVE MOTOR "A" MISSING MESSAGE P313483 COMMUNICATION ERROR FROM DRIVE MOTOR "A" TO GENERATOR VALUE OF SIGNAL PROTECTION CALCULATION INCORRECT P313486 COMMUNICATION ERROR FROM DRIVE MOTOR "A" TO GENERATOR SIGNAL INVALID P313487 COMMUNICATION ERROR FROM DRIVE MOTOR "A" TO GENERATOR MISSING MESSAGE P-HEV Hybrid Powertrain Control P0A1B49 DRIVE MOTOR "A" CONTROL MODULE INTERNAL ELECTRONIC FAILURE Power supply system malfunction P-HEV Drive Motor P06B01C GENERATOR CONTROL MODULE POSITION SENSOR REF POWER SOURCE CIRCUIT VOLTAGE OUT OF RANGE P06D61C GENERATOR CONTROL MODULE OFFSET POWER CIRCUIT VOLTAGE OUT OF RANGE Sensor and actuator circuit malfunction P-HEV Drive Motor P0A3F16 DRIVE MOTOR "A" POSITION SENSOR CIRCUIT VOLTAGE BELOW THRESHOLD P0A3F21 DRIVE MOTOR "A" POSITION SENSOR SIGNAL AMPLITUDE < MINIMUM P0A3F22 DRIVE MOTOR "A" POSITION SENSOR SIGNAL AMPLITUDE>MAXIMUM P0A4B16 GENERATOR POSITION SENSOR CIRCUIT VOLTAGE BELOW THRESHOLD P0A4B21 GENERATOR POSITION SENSOR SIGNAL AMPLITUDE < MINIMUM P0A4B22 GENERATOR POSITION SENSOR SIGNAL AMPLITUDE>MAXIMUM P0A6012 DRIVE MOTOR "A" PHASE V CURRENT (HIGH RESOLUTION) CIRCUIT SHORT TO BATTERY P0A6014 DRIVE MOTOR "A" PHASE V CURRENT (HIGH RESOLUTION) CIRCUIT SHORT TO GROUND OR OPEN P0A601C DRIVE MOTOR "A" PHASE V CURRENT (HIGH RESOLUTION) CIRCUIT VOLTAGE OUT OF RANGE P0A6312 DRIVE MOTOR "A" PHASE W CURRENT (HIGH RESOLUTION) CIRCUIT SHORT TO BATTERY P0A6314 DRIVE MOTOR "A" PHASE W CURRENT (HIGH RESOLUTION) CIRCUIT SHORT TO GROUND OR OPEN P0A631C DRIVE MOTOR "A" PHASE W CURRENT (HIGH RESOLUTION) CIRCUIT VOLTAGE OUT OF RANGE P0BE512 DRIVE MOTOR "A" PHASE U CURRENT SENSOR CIRCUIT SHORT TO BATTERY P0BE514 DRIVE MOTOR "A" PHASE U CURRENT SENSOR CIRCUIT SHORT TO GROUND OR OPEN P0BE528 DRIVE MOTOR "A" PHASE U CURRENT SENSOR SIGNAL BIAS LEVEL OUT OF RANGE/ZERO ADJUSTMENT FAILURE P0BE912 DRIVE MOTOR "A" PHASE V CURRENT SENSOR CIRCUIT SHORT TO BATTERY P0BE914 DRIVE MOTOR "A" PHASE V CURRENT SENSOR CIRCUIT SHORT TO GROUND OR OPEN P0BE928 DRIVE MOTOR "A" PHASE V CURRENT SENSOR SIGNAL BIAS LEVEL OUT OF RANGE/ZERO ADJUSTMENT FAILURE P0BED12 DRIVE MOTOR "A" PHASE W CURRENT SENSOR CIRCUIT SHORT TO BATTERY P0BED14 DRIVE MOTOR "A" PHASE W CURRENT SENSOR CIRCUIT SHORT TO GROUND OR OPEN P0BED28 DRIVE MOTOR "A" PHASE W CURRENT SENSOR SIGNAL BIAS LEVEL OUT OF RANGE/ZERO ADJUSTMENT FAILURE P0BFD62 DRIVE MOTOR "A" PHASE U-V-W CURRENT SENSOR SIGNAL COMPARE FAILURE P0C5013 DRIVE MOTOR "A" POSITION SENSOR CIRCUIT "A" CIRCUIT OPEN P0C5016 DRIVE MOTOR "A" POSITION SENSOR CIRCUIT "A" CIRCUIT VOLTAGE BELOW THRESHOLD P0C5017 DRIVE MOTOR "A" POSITION SENSOR CIRCUIT "A" CIRCUIT VOLTAGE ABOVE THRESHOLD P0C5A13 DRIVE MOTOR "A" POSITION SENSOR CIRCUIT "B" CIRCUIT OPEN P0C5A16 DRIVE MOTOR "A" POSITION SENSOR CIRCUIT "B" CIRCUIT VOLTAGE BELOW THRESHOLD P0C5A17 DRIVE MOTOR "A" POSITION SENSOR CIRCUIT "B" CIRCUIT VOLTAGE ABOVE THRESHOLD P0C6413 GENERATOR POSITION SENSOR CIRCUIT "A" CIRCUIT OPEN P0C6416 GENERATOR POSITION SENSOR CIRCUIT "A" CIRCUIT VOLTAGE BELOW THRESHOLD P0C6417 GENERATOR POSITION SENSOR CIRCUIT "A" CIRCUIT VOLTAGE ABOVE THRESHOLD P0C6913 GENERATOR POSITION SENSOR CIRCUIT "B" CIRCUIT OPEN P0C6916 GENERATOR POSITION SENSOR CIRCUIT "B" CIRCUIT VOLTAGE BELOW THRESHOLD P0C6917 GENERATOR POSITION SENSOR CIRCUIT "B" CIRCUIT VOLTAGE ABOVE THRESHOLD P0D2D16 DRIVE MOTOR "A" INVERTER VOLTAGE SENSOR (VH) CIRCUIT VOLTAGE BELOW THRESHOLD P0D2D17 DRIVE MOTOR "A" INVERTER VOLTAGE SENSOR (VH) CIRCUIT VOLTAGE ABOVE THRESHOLD P0DFA62 GENERATOR PHASE U-V-W CURRENT SENSOR SIGNAL COMPARE FAILURE P0E0012 GENERATOR PHASE U CURRENT SENSOR CIRCUIT SHORT TO BATTERY P0E0014 GENERATOR PHASE U CURRENT SENSOR CIRCUIT SHORT TO GROUND OR OPEN P0E0028 GENERATOR PHASE U CURRENT SENSOR SIGNAL BIAS LEVEL OUT OF RANGE/ZERO ADJUSTMENT FAILURE P0E0412 GENERATOR PHASE V CURRENT SENSOR CIRCUIT SHORT TO BATTERY P0E0414 GENERATOR PHASE V CURRENT SENSOR CIRCUIT SHORT TO GROUND OR OPEN P0E0428 GENERATOR PHASE V CURRENT SENSOR SIGNAL BIAS LEVEL OUT OF RANGE/ZERO ADJUSTMENT FAILURE P0E0812 GENERATOR PHASE W CURRENT SENSOR CIRCUIT SHORT TO BATTERY P0E0814 GENERATOR PHASE W CURRENT SENSOR CIRCUIT SHORT TO GROUND OR OPEN P0E0828 GENERATOR PHASE W CURRENT SENSOR SIGNAL BIAS LEVEL OUT OF RANGE/ZERO ADJUSTMENT FAILURE P0E3116 DC/DC CONVERTER VOLTAGE SENSOR "A" (VL) CIRCUIT VOLTAGE BELOW THRESHOLD P0E3117 DC/DC CONVERTER VOLTAGE SENSOR "A" (VL) CIRCUIT VOLTAGE ABOVE THRESHOLD P0E5111 DC/DC CONVERTER CURRENT SENSOR CIRCUIT SHORT TO GROUND P0E5115 DC/DC CONVERTER CURRENT SENSOR CIRCUIT SHORT TO BATTERY OR OPEN P0E512A DC/DC CONVERTER CURRENT SENSOR SIGNAL STUCK IN RANGE P1CAC49 GENERATOR POSITION SENSOR INTERNAL ELECTRONIC FAILURE P1CAD49 DRIVE MOTOR "A" POSITION SENSOR INTERNAL ELECTRONIC FAILURE P1CAF38 GENERATOR POSITION SENSOR REF SIGNAL CYCLE MALFUNCTION SIGNAL FREQUENCY INCORRECT P1CB038 DRIVE MOTOR "A" POSITION SENSOR REF SIGNAL FREQUENCY INCORRECT P-HEV Hybrid Powertrain Control P0C7600 HYBRID/EV BATTERY SYSTEM DISCHARGE TIME TOO LONG P0D2D1C DRIVE MOTOR "A" INVERTER VOLTAGE SENSOR VOLTAGE OUT OF RANGE P0E311C BOOSTING CONVERTER VOLTAGE SENSOR "A" VOLTAGE OUT OF RANGE P1C2D62 HYBRID/EV BATTERY "A" VOLTAGE SENSOR/BOOSTING CONVERTER VOLTAGE SENSOR "A" SIGNAL COMPARE FAILURE When "Only DTC P0A7872 is displayed" or "DTC other than above is displayed at the same time", go to A.
When DTCs related to [P-HEV Hybrid Powertrain Control], mentioned above, are simultaneously displayed, go to B.
When DTCs related to [P-HEV Drive Motor], mentioned above, are simultaneously displayed, go to C.
Yes:
- Go to 2.
- Perform the diagnosis for the simultaneously displayed DTCs.NOTE: If more than one DTC is simultaneously displayed, perform the diagnosis in the order described in the above.
- Perform the diagnosis for the simultaneously displayed DTCs.
NOTE: If more than one DTC is simultaneously displayed, perform the diagnosis in the order described in the above.No: -
- CHECK THE CONNECTING CONDITION OF CONNECTOR (Inverter with converter assembly LOW PRESSURE CONNECTOR)
.CAUTION: Make sure to wear insulated gloves and protective goggles during the work.
- Check that the Service plug is disconnected. Ref. to HYBRID ELECTRIC VEHICLE>SERVICE PLUG .
- Check the connecting condition of low pressure connectors (HV23) and (HV24) in Inverter with converter assembly and check the relevant terminals for contact pressure, deformation and intrusion of water or foreign matter. Ref. to HYBRID ELECTRIC VEHICLE>INVERTER AND CONVERTER ASSEMBLY .
NOTE: When connecting the connector, insert to the end with the lock lever raised, then fold the lock lever completely until a click is heard. After connected, make sure that the lock claw does not loosen and pull the connector to see that it does not come off.Is there looseness at the connector connection, or any poor contact, deformation or intrusion of water or foreign matter at the relevant terminals?
Yes: Connect the connector securely. Or repair the poor contact of connector.
No: Go to 3.
- CHECK MOTOR HIGH-VOLTAGE CIRCUIT
.
Check MOTOR HIGH-VOLTAGE CIRCUIT. Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>DIAGNOSTICS WITH PHENOMENON>INSPECTION>MOTOR HIGH-VOLTAGE CIRCUIT .
Is the MOTOR HIGH-VOLTAGE CIRCUIT OK?
Yes: Replace Inverter with converter assembly. Ref. to HYBRID ELECTRIC VEHICLE>INVERTER AND CONVERTER ASSEMBLY .
No: Repair according to MOTOR HIGH-VOLTAGE CIRCUIT inspection.