DTC P0A92-00: Hybrid Generator Performance: Notes

-
Detecting condition:

Generator demagnetization

When generator magnetic force dropped

(1 trip detection logic)

Trouble symptom:
- Reduced output power
- Engine used while driving and engine speed becomes high
- When Engine always stopped, A driving range is limited.
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	P1C7C-49	HYBRID/EV BATTERY VOLTAGE SYSTEM ISOLATION (A/C AREA) INTERNAL ELECTRONIC FAILURE
		P1C7D-49	HYBRID/EV BATTERY VOLTAGE SYSTEM ISOLATION (HYBRID/EV BATTERY AREA) INTERNAL ELECTRONIC FAILURE
		P1C7E-49	HYBRID/EV BATTERY VOLTAGE SYSTEM ISOLATION (TRANSAXLE AREA) INTERNAL ELECTRONIC FAILURE
		P1C7F-49	HYBRID/EV BATTERY VOLTAGE SYSTEM ISOLATION (DIRECT CURRENT AREA) INTERNAL ELECTRONIC FAILURE
High voltage system failure	P-HEV Hybrid Powertrain Control	P0AD9--11	HYBRID/EV BATTERY POSITIVE CONTACTOR CIRCUIT SHORT TO GROUND
		P0AD9-15	HYBRID/EV BATTERY POSITIVE CONTACTOR CIRCUIT SHORT TO AUXILIARY BATTERY OR OPEN
		P0ADD-11	HYBRID/EV BATTERY NEGATIVE CONTACTOR CIRCUIT SHORT TO GROUND
		P0ADD-15	HYBRID/EV BATTERY NEGATIVE CONTACTOR CIRCUIT SHORT TO AUXILIARY BATTERY OR OPEN
		P1C84-49	HIGH VOLTAGE POWER RESOURCE CIRCUIT SHORT DURING READY ON
Microcomputer malfunction	P-HEV Drive Motor	P0A1A-47	GENERATOR CONTROL MODULE WATCHDOG/SAFETY MC FAILURE
		P0A1A-49	GENERATOR CONTROL MODULE INTERNAL ELECTRONIC FAILURE
		P0A1B-1F	GENERATOR CONTROL MODULE CIRCUIT INTERMITTENT
		P1C2A-1C	GENERATOR A/D CONVERTER CIRCUIT CIRCUIT VOLTAGE OUT OF RANGE
		P1C2A-49	GENERATOR A/D CONVERTER CIRCUIT INTERNAL ELECTRONIC FAILURE
		P1C2B-1C	DRIVE MOTOR "A" CONTROL MODULE A/D CONVERTER CIRCUIT VOLTAGE OUT OF RANGE
		P1C2B-49	DRIVE MOTOR "A" CONTROL MODULE A/D CONVERTER CIRCUIT INTERNAL ELECTRONIC FAILURE
		P3133-83	COMMUNICATION ERROR FROM GENERATOR TO DRIVE MOTOR "A" VALUE OF SIGNAL PROTECTION CALCULATION INCORRECT
		P3133-86	COMMUNICATION ERROR FROM GENERATOR TO DRIVE MOTOR "A" SIGNAL INVALID
		P3133-87	COMMUNICATION ERROR FROM GENERATOR TO DRIVE MOTOR "A" MISSING MESSAGE
		P3134-83	COMMUNICATION ERROR FROM DRIVE MOTOR "A" TO GENERATOR VALUE OF SIGNAL PROTECTION CALCULATION INCORRECT
		P3134-86	COMMUNICATION ERROR FROM DRIVE MOTOR "A" TO GENERATOR SIGNAL INVALID
		P3134-87	COMMUNICATION ERROR FROM DRIVE MOTOR "A" TO GENERATOR MISSING MESSAGE
	P-HEV Hybrid Powertrain Control	P0A1B-49	DRIVE MOTOR "A" CONTROL MODULE INTERNAL ELECTRONIC FAILURE
Power supply system malfunction	P-HEV Drive Motor	P06B0-1C	GENERATOR CONTROL MODULE POSITION SENSOR REF POWER SOURCE CIRCUIT VOLTAGE OUT OF RANGE
Power supply system malfunction	P-HEV Drive Motor	P06D6-1C	GENERATOR CONTROL MODULE OFFSET POWER CIRCUIT VOLTAGE OUT OF RANGE
Sensor and actuator circuit malfunction	P-HEV Drive Motor	P0A3F-16	DRIVE MOTOR "A" POSITION SENSOR CIRCUIT VOLTAGE BELOW THRESHOLD
		P0A3F-21	DRIVE MOTOR "A" POSITION SENSOR SIGNAL AMPLITUDE < MINIMUM
		P0A3F-22	DRIVE MOTOR "A" POSITION SENSOR SIGNAL AMPLITUDE>MAXIMUM
		P0A4B-16	GENERATOR POSITION SENSOR CIRCUIT VOLTAGE BELOW THRESHOLD
		P0A4B-21	GENERATOR POSITION SENSOR SIGNAL AMPLITUDE < MINIMUM
		P0A4B-22	GENERATOR POSITION SENSOR SIGNAL AMPLITUDE>MAXIMUM
		P0A60-12	DRIVE MOTOR "A" PHASE V CURRENT (HIGH RESOLUTION) CIRCUIT SHORT TO BATTERY
		P0A60-14	DRIVE MOTOR "A" PHASE V CURRENT (HIGH RESOLUTION) CIRCUIT SHORT TO GROUND OR OPEN
		P0A60-1C	DRIVE MOTOR "A" PHASE V CURRENT (HIGH RESOLUTION) CIRCUIT VOLTAGE OUT OF RANGE
		P0A63-12	DRIVE MOTOR "A" PHASE W CURRENT (HIGH RESOLUTION) CIRCUIT SHORT TO BATTERY
		P0A63-14	DRIVE MOTOR "A" PHASE W CURRENT (HIGH RESOLUTION) CIRCUIT SHORT TO GROUND OR OPEN
		P0A63-1C	DRIVE MOTOR "A" PHASE W CURRENT (HIGH RESOLUTION) CIRCUIT VOLTAGE OUT OF RANGE
		P0BE5-12	DRIVE MOTOR "A" PHASE U CURRENT SENSOR CIRCUIT SHORT TO BATTERY
		P0BE5-14	DRIVE MOTOR "A" PHASE U CURRENT SENSOR CIRCUIT SHORT TO GROUND OR OPEN
		P0BE5-28	DRIVE MOTOR "A" PHASE U CURRENT SENSOR SIGNAL BIAS LEVEL OUT OF RANGE/ZERO ADJUSTMENT FAILURE
		P0BE9-12	DRIVE MOTOR "A" PHASE V CURRENT SENSOR CIRCUIT SHORT TO BATTERY
		P0BE9-14	DRIVE MOTOR "A" PHASE V CURRENT SENSOR CIRCUIT SHORT TO GROUND OR OPEN
		P0BE9-28	DRIVE MOTOR "A" PHASE V CURRENT SENSOR SIGNAL BIAS LEVEL OUT OF RANGE/ZERO ADJUSTMENT FAILURE
		P0BED-12	DRIVE MOTOR "A" PHASE W CURRENT SENSOR CIRCUIT SHORT TO BATTERY
		P0BED-14	DRIVE MOTOR "A" PHASE W CURRENT SENSOR CIRCUIT SHORT TO GROUND OR OPEN
		P0BED-28	DRIVE MOTOR "A" PHASE W CURRENT SENSOR SIGNAL BIAS LEVEL OUT OF RANGE/ZERO ADJUSTMENT FAILURE
		P0BFD-62	DRIVE MOTOR "A" PHASE U-V-W CURRENT SENSOR SIGNAL COMPARE FAILURE
		P0C50-13	DRIVE MOTOR "A" POSITION SENSOR CIRCUIT "A" CIRCUIT OPEN
		P0C50-16	DRIVE MOTOR "A" POSITION SENSOR CIRCUIT "A" CIRCUIT VOLTAGE BELOW THRESHOLD
		P0C50-17	DRIVE MOTOR "A" POSITION SENSOR CIRCUIT "A" CIRCUIT VOLTAGE ABOVE THRESHOLD
		P0C5A-13	DRIVE MOTOR "A" POSITION SENSOR CIRCUIT "B" CIRCUIT OPEN
		P0C5A-16	DRIVE MOTOR "A" POSITION SENSOR CIRCUIT "B" CIRCUIT VOLTAGE BELOW THRESHOLD
		P0C5A-17	DRIVE MOTOR "A" POSITION SENSOR CIRCUIT "B" CIRCUIT VOLTAGE ABOVE THRESHOLD
		P0C64-13	GENERATOR POSITION SENSOR CIRCUIT "A" CIRCUIT OPEN
		P0C64-16	GENERATOR POSITION SENSOR CIRCUIT "A" CIRCUIT VOLTAGE BELOW THRESHOLD
		P0C64-17	GENERATOR POSITION SENSOR CIRCUIT "A" CIRCUIT VOLTAGE ABOVE THRESHOLD
		P0C69-13	GENERATOR POSITION SENSOR CIRCUIT "B" CIRCUIT OPEN
		P0C69-16	GENERATOR POSITION SENSOR CIRCUIT "B" CIRCUIT VOLTAGE BELOW THRESHOLD
		P0C69-17	GENERATOR POSITION SENSOR CIRCUIT "B" CIRCUIT VOLTAGE ABOVE THRESHOLD
		P0D2D-16	DRIVE MOTOR "A" INVERTER VOLTAGE SENSOR(VH) CIRCUIT VOLTAGE BELOW THRESHOLD
		P0D2D-17	DRIVE MOTOR "A" INVERTER VOLTAGE SENSOR(VH) CIRCUIT VOLTAGE ABOVE THRESHOLD
		P0DFA-62	GENERATOR PHASE U-V-W CURRENT SENSOR SIGNAL COMPARE FAILURE
		P0E00-12	GENERATOR PHASE U CURRENT SENSOR CIRCUIT SHORT TO BATTERY
		P0E00-14	GENERATOR PHASE U CURRENT SENSOR CIRCUIT SHORT TO GROUND OR OPEN
		P0E00-28	GENERATOR PHASE U CURRENT SENSOR SIGNAL BIAS LEVEL OUT OF RANGE/ZERO ADJUSTMENT FAILURE
		P0E04-12	GENERATOR PHASE V CURRENT SENSOR CIRCUIT SHORT TO BATTERY
		P0E04-14	GENERATOR PHASE V CURRENT SENSOR CIRCUIT SHORT TO GROUND OR OPEN
		P0E04-28	GENERATOR PHASE V CURRENT SENSOR SIGNAL BIAS LEVEL OUT OF RANGE/ZERO ADJUSTMENT FAILURE
		P0E08-12	GENERATOR PHASE W CURRENT SENSOR CIRCUIT SHORT TO BATTERY
		P0E08-14	GENERATOR PHASE W CURRENT SENSOR CIRCUIT SHORT TO GROUND OR OPEN
		P0E08-28	GENERATOR PHASE W CURRENT SENSOR SIGNAL BIAS LEVEL OUT OF RANGE/ZERO ADJUSTMENT FAILURE
		P0E31-16	DC/DC CONVERTER VOLTAGE SENSOR "A" (VL) CIRCUIT VOLTAGE BELOW THRESHOLD
		P0E31-17	DC/DC CONVERTER VOLTAGE SENSOR "A" (VL) CIRCUIT VOLTAGE ABOVE THRESHOLD
		P0E51-11	DC/DC CONVERTER CURRENT SENSOR CIRCUIT SHORT TO GROUND
		P0E51-15	DC/DC CONVERTER CURRENT SENSOR CIRCUIT SHORT TO BATTERY OR OPEN
		P0E51-28	DC/DC CONVERTER CURRENT SENSOR SIGNAL BIAS LEVEL OUT OF RANGE/ZERO ADJUSTMENT FAILURE
		P1CAC-49	GENERATOR POSITION SENSOR INTERNAL ELECTRONIC FAILURE
		P1CAD-49	DRIVE MOTOR "A" POSITION SENSOR INTERNAL ELECTRONIC FAILURE
		P1CAF-38	GENERATOR POSITION SENSOR REF SIGNAL CYCLE MALFUNCTION SIGNAL FREQUENCY INCORRECT
		P1CB0-38	DRIVE MOTOR "A" POSITION SENSOR REF SIGNAL FREQUENCY INCORRECT
		P1CFF-62	HYBRID/EV BATTERY CURRENT/DC/DC CONVERTER CURRENT SIGNAL COMPARE FAILURE
	P-HEV Hybrid Powertrain Control	P0C76-00	HYBRID/EV BATTERY SYSTEM DISCHARGE TIME TOO LONG
		P0D2D-1C	DRIVE MOTOR "A" INVERTER VOLTAGE SENSOR VOLTAGE OUT OF RANGE
		P0E31-1C	BOOSTING CONVERTER VOLTAGE SENSOR "A" VOLTAGE OUT OF RANGE
		P1C2D-62	HYBRID/EV BATTERY "A" VOLTAGE SENSOR/BOOSTING CONVERTER VOLTAGE SENSOR "A" SIGNAL COMPARE FAILURE
System malfunction	P-HEV Drive Motor	P0A78-73	DRIVE MOTOR "A" INVERTER ACTUATOR STUCK CLOSED
		P0A7A-73	GENERATOR INVERTER ACTUATOR STUCK CLOSED
		P0C19-00	DRIVE MOTOR "A" EXECUTION TORQUE PERFORMANCE
		P0E71-00	GENERATOR EXECUTION TORQUE PERFORMANCE

When "Only DTC P0A92-00 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 FREEZE FRAME DATA AND DIAGNOSTIC RELATED INFORMATION .
1. Using the Subaru Select Monitor, read [Diagnosis Related Information] of [P-HEV Drive Motor]. Ref. to P-HEV DRIVE MOTOR (DIAGNOSTICS)>WORK SUPPORT .
2. Read the DTC of [P-HEV Drive Motor] using the Subaru Select Monitor. Ref. to P-HEV DRIVE MOTOR (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .
  When diagnostic related information DTC P3124-87 is displayed, go to A.
  
  When diagnostic related information DTC P3124-87 is not displayed and freeze frame data [Emergency Shutdown Signal] is ON, go to B.
  
  For cases other than above, go to C.
  
  Yes:
  1. Perform the diagnosis of DTC P3124-1F. Ref. to P-HEV DRIVE MOTOR (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P3124-1F: LOST COMMUNICATION BETWEEN DRIVE MOTOR "A" AND HV ECU CIRCUIT INTERMITTENT .
  2. Perform the diagnosis of DTC P321E-9F. Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P321E-9F: MOTOR/GENERATOR SHUTDOWN SIGNAL STUCK OFF .
  3. Go to 3.
  No: -
CHECK DTC .
1. Using the Subaru Select Monitor, perform the clear memory of [P-HEV Drive Motor]. Ref. to COMMON (DIAG)>CLEAR MEMORY .
2. Turn to READY ON.
3. Move to P position.
4. Turn the air conditioner ON and wait for 1 minute in the status of Engine always stopped.
  NOTE: When the engine starts, run the engine until it stalls. Wait for 1 minute after Engine always stopped.
5. Read the DTC of [P-HEV Drive Motor] using the Subaru Select Monitor. Ref. to P-HEV DRIVE MOTOR (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .
  Is DTC other than P0A92-00 or P1CA5-1D displayed?
  
  Yes: Perform the diagnosis for the displayed DTCs. Ref. to P-HEV DRIVE MOTOR (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)>LIST .
  
  No: Go to 4.
CHECK DTC .
1. Using the Subaru Select Monitor, perform the clear memory of [P-HEV Drive Motor]. Ref. to COMMON (DIAG)>CLEAR MEMORY .
2. Turn to READY ON.
3. Depress the brake pedal firmly using your left foot.
4. Move to D position.
5. Fully depress the accelerator pedal for 5 seconds, and then release the accelerator pedal.
  CAUTION: At this time, be sure to apply the parking brake and foot brake fully so that the vehicle does not move.
6. Read the DTC of [P-HEV Drive Motor] using the Subaru Select Monitor. Ref. to P-HEV DRIVE MOTOR (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .
  Is DTC other than P0A92-00 or P1CA5-1D displayed?
  
  Yes: Perform the diagnosis for the displayed DTCs. Ref. to P-HEV DRIVE MOTOR (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)>LIST .
  
  No: Go to 5.
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.
1. Check that the Service plug is disconnected. Ref. to HYBRID ELECTRIC VEHICLE>SERVICE PLUG .
2. 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 6.
CHECK Shut Down Signal Circuit .
Check Shut Down Signal Circuit. Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>DIAGNOSTICS WITH PHENOMENON>INSPECTION>SHUT DOWN SIGNAL CIRCUIT .

Is the Shut Down Signal Circuit OK?

Yes: Go to 7.

No: Repair according to Shut Down Signal Circuit inspection. And then, Go to 7.
CHECK GENERATOR HIGH-VOLTAGE CIRCUIT .
Check GENERATOR HIGH-VOLTAGE CIRCUIT. Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>DIAGNOSTICS WITH PHENOMENON>INSPECTION>GENERATOR HIGH-VOLTAGE CIRCUIT .

Is the GENERATOR HIGH-VOLTAGE CIRCUIT OK?

Yes: Replace Transmission assembly. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TH2A)>TRANSMISSION ASSEMBLY .

No: Repair according to GENERATOR HIGH-VOLTAGE CIRCUIT inspection.