Nissan Leaf. Manual - part 1195

P0BEA D-MOTOR A PHASE V CURRENT SEN

TMS-61

< DTC/CIRCUIT DIAGNOSIS >

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P0BEA D-MOTOR A PHASE V CURRENT SEN

DTC Logic

INFOID:0000000010120950

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always power switch OFF and wait

at least 10 seconds before conducting the next test.

>> GO TO 2.

2.

CHECK DTC DETECTION

With CONSULT

1. Power switch ON and wait for 10 seconds or more.

2. Check DTC.
Is “P0BEA” detected?

YES

>> Go to 

TMS-61, "Diagnosis Procedure"

.

NO-1 >> To check malfunction symptom before repair: Refer to 

GI-53, "Intermittent Incident"

.

NO-2 >> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010120951

1.

REPLACE TRACTION MOTOR INVERTER

Replace the traction motor inverter. Refer to 

TMS-103, "Removal and Installation"

.

>> END

DTC

CONSULT screen terms

(Trouble diagnosis content)

Malfunction detected condition

Possible cause

P0BEA

D-MOTOR A PHASE V CURRENT SEN
(Drive Motor “A” Phase V Current Sen-
sor Circuit Range/Performance)

If the value detected by the traction mo-
tor V-phase current sensor is abnormal

Traction motor inverter

TMS-62

< DTC/CIRCUIT DIAGNOSIS >

P0C79 DRIVE MOTOR A INVERTER VOLTAGE

P0C79 DRIVE MOTOR A INVERTER VOLTAGE

DTC Logic

INFOID:0000000010120952

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

CAUTION:

Always drive vehicle at a safe speed.

1.

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always power switch OFF and wait

at least 10 seconds before conducting the next test.

>> GO TO 2.

2.

CHECK DTC DETECTION

With CONSULT

1. Set the vehicle to READY and wait for 10 seconds or more.

2. Accelerate to 60 km/h (37 MPH).

3. Stop the vehicle.

4. Check DTC.
Is “P0C79” detected?

YES

>> Go to 

TMS-62, "Diagnosis Procedure"

.

NO-1 >> To check malfunction symptom before repair: Refer to 

GI-53, "Intermittent Incident"

.

NO-2 >> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010120953

DANGER:

Since hybrid vehicles and electric vehicles contain a high voltage battery, there is the risk of

electric shock, electric leakage, or similar accidents if the high voltage component and vehicle are

handled incorrectly. Be sure to follow the correct work procedures when performing inspection and

maintenance.

WARNING:

• Be sure to remove the service plug in order to disconnect the high voltage circuits before perform-

ing inspection or maintenance of high voltage system harnesses and parts.

• The removed service plug must always be carried in a pocket of the responsible worker or placed in

the tool box during the procedure to prevent the plug from being connected by mistake.

• Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses

before beginning work on the high voltage system.

• Never allow workers other than the responsible person to touch the vehicle containing high voltage

parts. To keep others from touching the high voltage parts, these parts must be covered with an insu-

lating sheet except when using them.

• Refer to 

TMS-5, "High Voltage Precautions"

.

CAUTION:

Never bring the vehicle into the READY status with the service plug removed unless otherwise

instructed in the Service Manual. A malfunction may occur if this is not observed.

DTC

CONSULT screen terms

(Trouble diagnosis content)

Malfunction detected condition

Possible causes

P0C79

DRIVE MOTOR A INVERTER VOLTAGE
(Drive Motor “A” Inverter Voltage Too 
Hight)

High voltage value is any of the following 
conditions:
• Approx. 500 V or more
• More than the traction motor inverter 

operable voltage range for 100 ms or 
more continuously

• Traction motor inverter
• High voltage harness or con-

nector

• Li-ion battery
• High voltage parts except for 

traction motor inverter

P0C79 DRIVE MOTOR A INVERTER VOLTAGE

TMS-63

< DTC/CIRCUIT DIAGNOSIS >

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1.

CHECK DTC HIGH VOLTAGE SYSTEMS

1. Power switch ON and wait 10 seconds or more.

2. Check DTC of the high voltage systems.
Were there any detected DTC related to a high voltage systems other than the traction motor inverter?

YES

>> Check DTC detected item.

NO

>> GO TO 2.

2.

PRECONDITIONING

WARNING:

Disconnect the high voltage. Refer to 

GI-33, "How to Disconnect High Voltage"

.

Check voltage in high voltage circuit. (Check that condenser are discharged.)

1. Lift up the vehicle and remove the Li-ion battery under covers. Refer to 

EVB-181, "Exploded View"

.

2. Disconnect high voltage harness connector and PTC heater harness connector from front side of Li-ion

battery. Refer to 

EVB-181, "Removal and Installation"

.

3. Measure voltage between high voltage harness connector terminals and PTC heater harness connector

terminals.

DANGER:

 

 Touching high voltage components without using the appropriate protective equipment will

cause electrocution.

CAUTION:

For voltage measurements, use a tester which can measure to 500 V or higher.

>> GO TO 3.

3.

CHECK HIGH VOLTAGE HARNESS

Check for an open circuit or short circuit between PDM (Power Delivery Module) and Li-ion battery. Refer to

VC-37, "Wiring Diagram"

.

Is the inspection result normal?

YES

>> Replace the traction motor inverter. Refer to 

TMS-103, "Removal and Installation"

.

NO

>> Repair or replace damaged parts.

Standard

: 5 V or less 

JPCIA0296ZZ

TMS-64

< DTC/CIRCUIT DIAGNOSIS >

P318E CAN ERROR

P318E CAN ERROR

DTC Logic

INFOID:0000000010120954

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always power switch OFF and wait

at least 10 seconds before conducting the next test.

>> GO TO 2.

2.

CHECK DTC DETECTION

With CONSULT

1. Power switch ON and wait for 5 seconds or more.

2. Check DTC.
Is “P318E” detected?

YES

>> Go to 

TMS-64, "Diagnosis Procedure"

.

NO-1 >> To check malfunction symptom before repair: Refer to 

GI-53, "Intermittent Incident"

.

NO-2 >> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010120955

1.

REPLACE VCM

Replace the VCM. Refer to 

EVC-423, "Removal and Installation"

.

>> END

DTC

CONSULT screen terms

(Trouble diagnosis content)

Malfunction detected condition

Possible cause

P318E

CAN ERROR
(CAN data error)

Traction motor inverter is unable to receive the EV sys-
tem CAN signal from VCM

VCM