Nissan Leaf. Manual - part 1200

P3244 DRIVE MOTOR A INVERTER

TMS-81

< DTC/CIRCUIT DIAGNOSIS >

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1. Power switch ON and wait for 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 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 4.

NO

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

VC-109, "Exploded View"

.

4.

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-82

< DTC/CIRCUIT DIAGNOSIS >

P3245 DRIVE MOTOR A INVERTER

P3245 DRIVE MOTOR A INVERTER

DTC Logic

INFOID:0000000010120982

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 “P3245” detected?

YES

>> Go to 

TMS-82, "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:0000000010120983

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

P3245

DRIVE MOTOR A INVERTER
(Drive Motor “A” Inverter Voltage 
Sensor Circuit)

A malfunction is detected in high voltage 
sensor for 0.3 seconds or more

Traction motor inverter

P3247 DRIVE MOTOR A INVERTER

TMS-83

< DTC/CIRCUIT DIAGNOSIS >

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P3247 DRIVE MOTOR A INVERTER

DTC Logic

INFOID:0000000010120984

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 “P3247” detected?

YES

>> Go to 

TMS-83, "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:0000000010120985

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

P3247

DRIVE MOTOR A INVERTER
(Drive Motor “A” Inverter Driver 
Power Supply)

Driver circuit power does not come ON 
when starting EV system

Traction motor inverter

TMS-84

< DTC/CIRCUIT DIAGNOSIS >

P3249 DRIVE MOTOR A INVERTER

P3249 DRIVE MOTOR A INVERTER

DTC Logic

INFOID:0000000010120986

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 “P3249” detected?

YES

>> Go to 

TMS-84, "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:0000000010120987

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 causes

P3249

DRIVE MOTOR A INVERTER
(Drive Motor “A” Inverter Driver 
Signal)

Power supply voltage of the driver circuit is 
low or stopped

Traction motor inverter