DTC P0BE5-28: Drive Motor "A" Phase U Current Sensor Signal Bias Level Out Of Range/Zero Adjustment Failure: Notes

WARNING: This page is about a different variant/trim than selected.

1. -

Detecting condition:

Motor inverter current sensor U-phase offset malfunction

When the absolute value of the current sensor output exceeds the specified value while no current originally flows such as inverter shutdown

(1 trip detection logic)

Trouble symptom:

Greatly reduced output power
Driving in reverse not possible
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 .

Courtesy of SUBARU OF AMERICA, INC.

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	P0AA649	HYBRID/EV BATTERY VOLTAGE SYSTEM ISOLATION INTERNAL ELECTRONIC FAILURE
Microcomputer malfunction	P-HEV Hybrid Powertrain Control	P0A1B49	DRIVE MOTOR "A" CONTROL MODULE INTERNAL ELECTRONIC FAILURE
	P-HEV Drive Motor	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
		P312487	LOST COMMUNICATION BETWEEN DRIVE MOTOR "A" AND HV ECU MISSING MESSAGE
Power supply system malfunction	P-HEV Drive Motor	P06B01C	GENERATOR CONTROL MODULE POSITION SENSOR REF POWER SOURCE CIRCUIT VOLTAGE OUT OF RANGE
Power supply system malfunction	P-HEV Drive Motor	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
		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
		P0D2D16	DRIVE MOTOR "A" INVERTER VOLTAGE SENSOR (VH) CIRCUIT VOLTAGE BELOW THRESHOLD
		P0D2D17	DRIVE MOTOR "A" INVERTER VOLTAGE SENSOR (VH) CIRCUIT VOLTAGE ABOVE THRESHOLD
		P1CAD49	DRIVE MOTOR "A" POSITION SENSOR INTERNAL ELECTRONIC FAILURE
		P1CB038	DRIVE MOTOR "A" POSITION SENSOR REF SIGNAL FREQUENCY INCORRECT
System malfunction	P-HEV Drive Motor	P0A7873	DRIVE MOTOR "A" INVERTER ACTUATOR STUCK CLOSED

When "Only DTC P0BE528, P0BE928 or P0BED28 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.
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: Replace Inverter with converter assembly. Ref. to HYBRID ELECTRIC VEHICLE>INVERTER AND CONVERTER ASSEMBLY .