Nissan Leaf. Manual — part 1202

P324D DRIVE MOTOR A INVERTER IGBT

TMS-89

< DTC/CIRCUIT DIAGNOSIS >

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Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace the traction motor. Refer to

TMS-109, "Removal and Installation"

.

6.

CHECK RESISTANCE TRACTION MOTOR STATOR COIL

Check the resistance traction motor stator coil. Refer to

TMS-89, "Component Inspection (Traction Motor Sta-

tor Coil)"

.

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"

.

Component Inspection (Traction Motor Stator Coil)

INFOID:0000000010120992

1.

CHECK RESISTANCE OF TRACTION MOTOR STATOR COIL

Using a milliohmmeter and check the resistance traction motor stator coil.

CAUTION:

As resistance of stator coil is affected by temperature, check it at least 8 hour after removal of service

plug.

*: The value is at 20

°C (68°F). Calculate the resistance standard value based on actual ambient temperature

at operation based on the below calculation formula.

Calculating formula

• R20=R/[1+ 0.00393

× (T−20)]

- R20: Resistance value (m

Ω) at 20°C (68°F)

- R: Resistance value (m

Ω) at actual ambient temperature at operation

- T: Actual ambient temperature [

°C (°F)] at operation

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace the traction motor due to malfunction in the stator coil. Refer to

TMS-109, "Removal and

Installation"

.

3-phase harness

Resistance*

Terminal

U-phase

V-phase

14.1 – 17.9 m

Ω

V-phase

W-phase

W-phase

U-phase

TMS-90

< DTC/CIRCUIT DIAGNOSIS >

P3252 DRIVE MOTOR A INVERTER IGBT

P3252 DRIVE MOTOR A INVERTER IGBT

DTC Logic

INFOID:0000000010120993

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. Drive during 20 minutes for warm-up.

3. Repeat driving of 0 km/h (0 MPH)

→ 60 km/h (37 MPH) with full acceleration 10 times without interval.

4. Stop the vehicle.

5. Check DTC.
Is “P3252” detected?

YES

>> Go to

TMS-90, "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:0000000010120994

1.

CHECK DTC HIGH VOLTAGE COOLING SYSTEM

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

2. Perform “Self Diagnostic Results” in “EV/HEV”.
Is any DTC detected?

YES

>> Check DTC detected item. Refer to

EVC-102, "DTC Index"

.

NO

>> GO TO 2.

2.

CHECK COOLANT WATER

Check the coolant level and check for coolant leakage. Refer to

HCO-11, "Inspection"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace damaged parts.

3.

CHECK COOLANT HOSE

Check for clogging of fluid paths and twisting of hoses in traction motor inverter, traction motor, and PDM

(Power Delivery Module). Refer to

HCO-7, "High Voltage Cooling System"

.

Is the inspection result normal?

YES

>> Replace the traction motor inverter. Refer to

TMS-103, "Removal and Installation"

.

NO

>> Repair or replace damaged parts.

DTC

CONSULT screen terms

(Trouble diagnosis content)

Malfunction detected condition

Possible causes

P3252

DRIVE MOTOR A INVERTER IGBT
(Drive Motor “A” Inverter IGBT High
Temperature)

The amount of rise in IGBT temperature is
excessively large compared with that of
normal condition

• Traction motor inverter
• High voltage cooling system

P325A CAN ERROR

TMS-91

< DTC/CIRCUIT DIAGNOSIS >

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P325A CAN ERROR

DTC Logic

INFOID:0000000010120995

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 “P325A” detected?

YES

>> Go to

TMS-91, "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:0000000010120996

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 causes

P325A

CAN ERROR
(CAN data error)

If traction motor inverter detects CAN data error continu-
ously for 2 seconds or more

VCM

TMS-92

< DTC/CIRCUIT DIAGNOSIS >

P325B DRIVE MOTOR A INVERTER

P325B DRIVE MOTOR A INVERTER

DTC Logic

INFOID:0000000010120997

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 “P325B” detected?

YES

>> Go to

TMS-92, "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:0000000010120998

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

P325B

DRIVE MOTOR A INVERTER
(Drive Motor “A” Inverter TEMP-M
Circuit)

IGBT high temperature detection signal sticks
when starting EV system

Traction motor inverter