Nissan Leaf. Manual - part 1198

P3240 DRIVE MOTOR A INVERTER CRNT CONT

TMS-73

< DTC/CIRCUIT DIAGNOSIS >

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P3240 DRIVE MOTOR A INVERTER CRNT CONT

DTC Logic

INFOID:0000000010120972

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. Fully open the accelerator and accelerate the vehicle to 60 km/h (37 MPH).

3. Stop the vehicle.

4. Check DTC.
Is “P3240” detected?

YES

>> Go to 

TMS-73, "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:0000000010120973

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.

1.

CHECK DTC HIGH VOLTAGE SYSTEMS

DTC

CONSULT screen terms

(Trouble diagnosis content)

Malfunction detected condition

Possible causes

P3240

DRIVE MOTOR A INVERTER CRNT CONT
(Drive Motor “A” Inverter Performance/Motor 
Current Control Error)

Abnormal output voltage of traction mo-
tor inverter due to abnormal current 
flow to the traction motor

• Traction motor inverter
• Traction  motor
• High voltage harness or con-

nector

• Li-ion battery

TMS-74

< DTC/CIRCUIT DIAGNOSIS >

P3240 DRIVE MOTOR A INVERTER CRNT CONT

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.

CHECK TRACTION MOTOR RESOLVER OFFSET DATA

1. Use CONSULT to read the traction motor resolver offset, and record the result.

NOTE:

“Work support” - “RESOLVER WRITE” can be used to check the traction motor resolver offset that is cur-

rently stored by the traction motor inverter.

2. Remove the under cover and record the traction motor resolver offset that is stamped on the traction

motor.

NOTE:

For the location of traction motor resolver offset stamping, refer to 

TMS-39, "Description"

.

3. Check whether or not the value read with CONSULT matches the value which was stamped on the trac-

tion motor.

Do the values match?

YES

>> GO TO 3.

NO

>> Write the traction motor resolver offset to the traction motor inverter. Refer to 

TMS-39, "Work Pro-

cedure"

.

3.

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 4.

4.

CHECK HIGH VOLTAGE HARNESS

Standard

: 5 V or less 

JPCIA0296ZZ

P3240 DRIVE MOTOR A INVERTER CRNT CONT

TMS-75

< DTC/CIRCUIT DIAGNOSIS >

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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

>> GO TO 5.

NO

>> Repair or replace damaged parts.

5.

CHECK TRACTION MOTOR INVERTER HIGH VOLTAGE BUS BAR

Remove bus bar cover from PDM (Power Delivery Module) and check the tightness of high voltage bas bar.

Refer to 

VC-109, "Exploded View"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Tighten the high voltage bus bar to the specified torque. Refer to 

VC-109, "Exploded View"

.

6.

CHECK THE CONNECTION CONDITIONS OF THE 3-PHASE BUS BAR

Remove bus bar cover from traction motor and check the tightness of the 3-phase bus bar. Refer to 

TMS-109,

"Exploded View"

.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Tighten the 3-phase bus bar to the specified torque. Refer to 

TMS-109, "Exploded View"

.

7.

CHECK DISCONNECTION TRACTION MOTOR STATOR COIL

1. Remove the traction motor inverter. Refer to 

TMS-103, "Removal and Installation"

.

2. Check stator coil for open circuit from the opening of the traction motor 3-phase bus bar.

Is the inspection result normal?

YES

>> Replace the traction motor inverter. Refer to 

TMS-103, "Removal and Installation"

.

NO

>> Replace the traction motor. Refer to 

TMS-109, "Removal and Installation"

.

3-phase bus bar

Resistance

Terminal

U-phase

V-phase

1

Ω or less

V-phase

W-phase

W-phase

U-phase

TMS-76

< DTC/CIRCUIT DIAGNOSIS >

P3241 DRIVE MOTOR A INVERTER CRNT CONT

P3241 DRIVE MOTOR A INVERTER CRNT CONT

DTC Logic

INFOID:0000000010120974

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. Fully open the accelerator and accelerate the vehicle to 10 km/h (6 MPH).

3. Stop the vehicle.

4. Check DTC.
Is “P3241” detected?

YES

>> Go to 

TMS-76, "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:0000000010120975

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.

1.

PRECONDITIONING

WARNING:

Disconnect the high voltage. Refer to 

GI-33, "How to Disconnect High Voltage"

.

DTC

CONSULT screen terms

(Trouble diagnosis content)

Malfunction detected condition

Possible causes

P3241

DRIVE MOTOR A INVERTER CRNT CONT
(Drive Motor “A” Inverter Performance/AC 
Error Detection)

If no current is being applied to 1 
phase of the traction motor 

• Traction motor inverter
• Traction  motor