Nissan Leaf. Manual - part 554

EVC-240

< DTC/CIRCUIT DIAGNOSIS >

P312E READY OFF ERROR

NO

>> GO TO 3.

3.

PERFORM SELF-DIAGNOSIS OF TRACTION MOTOR INVERTER

With CONSULT

Perform self-diagnosis of traction motor inverter.
Is DTC detected?

YES

>> Check the DTC. Refer to 

TMS-28, "DTC Index"

.

NO

>> GO TO 4.

4.

PERFORM SELF-DIAGNOSIS OF LBC

With CONSULT

Perform self-diagnosis of LBC.
Is DTC detected?

YES

>> Check the DTC. Refer to 

EVB-45, "DTC Index"

.

NO

>> GO TO 5.

5.

PERFORM DTC CONFIRMATION PROCEDURE AGAIN

With CONSULT

1. Erase DTC.

2. Perform DTC confirmation procedure again. Refer to 

EVC-239, "DTC Logic"

.

Is DTC “P312E” detected again?

YES

>> Replace VCM. Refer to 

EVC-423, "Removal and Installation"

.

NO

>> INSPECTION END

P312F CHARGE OFF ERROR

EVC-241

< DTC/CIRCUIT DIAGNOSIS >

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EVC

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P312F CHARGE OFF ERROR

DTC Logic

INFOID:0000000010120697

DTC DETECTION LOGIC

NOTE:

If DTC P312F is displayed with DTC P317A, P3191, P3196, P319C, P31A1, P31A7, or P31AE, perform diag-

nosis for DTC P317A, P3191, P3196, P319C, P31A1, P31A7, or P31AE.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

• Turn power switch OFF and wait at least 90 seconds.

CAUTION:

During this period, never perform vehicle handling such as opening and closing of doors. If some

kind of vehicle handling is performed, then wait another 90 seconds or more from the time of the

vehicle handling.

• Make sure that 12V battery voltage is 11 V or more.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE-1

With CONSULT

1. Check that the charging status indicator is not illuminating, and wait at least 90 seconds.

CAUTION:

During this period, never perform vehicle handling such as opening and closing of doors. If some

kind of vehicle handling is performed, then wait another 90 seconds or more from the time of the

vehicle handling.

2. Connect EVSE (with AC power input) and wait at least 60 seconds.

3. Disconnect EVSE and wait at lease 30 seconds.

4. Turn power switch ON.

5. Check DTC.
Is DTC detected?

YES

>> Proceed to 

EVC-242, "Diagnosis Procedure"

.

NO-1 (with quick charge port)>>GO TO 3.

NO-2 (without quick charge port)>>INSPECTION END

3.

PERFORM DTC CONFIRMATION PROCEDURE-2

With CONSULT

1. Turn power switch OFF. 

2. Check that the charging status indicator is not illuminating, and wait at least 90 seconds.

CAUTION:

During this period, never perform vehicle handling such as opening and closing of doors. If some

kind of vehicle handling is performed, then wait another 90 seconds or more from the time of the

vehicle handling.

3. Connect quick charge connector.

4. Start quick charging and wait at least 60 seconds.

5. Stop quick charge and wait at lease 30 seconds.

6. Turn power switch ON.

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P312F

CHARGE OFF ERROR
(Charge off error)

During the shutdown from charging, 10 seconds pass with-
out satisfying the following conditions:
• Battery current is 5.5 A or less
• Traction motor inverter is ready for discharge. 
• Quick charge relay OFF

• Harness or connector
• LBC
• Traction motor inverter
• A/C auto amp.
• PDM (Power Delivery 

Module)

• VCM

EVC-242

< DTC/CIRCUIT DIAGNOSIS >

P312F CHARGE OFF ERROR

7. Check DTC.
Is DTC detected?

YES

>> Proceed to 

EVC-242, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010120698

1.

PERFORM SELF-DIAGNOSIS OF A/C AUTO AMP.

With CONSULT

Perform self-diagnosis of A/C auto amp.
Is DTC detected?

YES

>> Check the DTC. Refer to 

HAC-56, "DTC Index"

 [auto A/C (with heat pump)] or 

HAC-251, "DTC

Index"

 [auto A/C (without heat pump)].

NO

>> GO TO 2.

2.

PERFORM SELF-DIAGNOSIS OF POWER DELIVERY MODULE

With CONSULT

Perform self-diagnosis of PDM (Power Delivery Module).
Is DTC detected?

YES

>> Check the DTC. Refer to 

VC-34, "DTC Index"

.

NO

>> GO TO 3.

3.

PERFORM SELF-DIAGNOSIS OF TRACTION MOTOR INVERTER

With CONSULT

Perform self-diagnosis of traction motor inverter.
Is DTC detected?

YES

>> Check the DTC. Refer to 

TMS-28, "DTC Index"

.

NO

>> GO TO 4.

4.

PERFORM SELF-DIAGNOSIS OF LBC

With CONSULT

Perform self-diagnosis of LBC.
Is DTC detected?

YES

>> Check the DTC. Refer to 

EVB-45, "DTC Index"

.

NO

>> GO TO 5.

5.

PERFORM DTC CONFIRMATION PROCEDURE AGAIN

With CONSULT

1. Erase DTC.

2. Perform DTC confirmation procedure again. Refer to 

EVC-241, "DTC Logic"

.

Is DTC “P312F” detected again?

YES

>> Replace VCM. Refer to 

EVC-423, "Removal and Installation"

.

NO

>> INSPECTION END

P3131 SYSTEM SHUTOFF ERROR

EVC-243

< DTC/CIRCUIT DIAGNOSIS >

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P3131 SYSTEM SHUTOFF ERROR

DTC Logic

INFOID:0000000010120699

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

• Turn power switch OFF and wait at least 90 seconds.

CAUTION:

During this period, never perform vehicle handling such as opening and closing of doors. If some

kind of vehicle handling is performed, then wait another 90 seconds or more from the time of the

vehicle handling.

• Make sure that 12V battery voltage is 11 V or more.

NOTE:

Disconnect the CONSULT if it is connected.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE-1

With CONSULT

1. Turn power switch ON.

2. Turn power switch OFF and wait at least 35 minutes.

NOTE:

After the completion of the self shutoff of VCM, the next step can be performed without waiting for 35 min-

utes. To confirm the completion of self shutoff, check that the power supply terminal voltage of the battery

current sensor changes to approximately 0 V.

3. Turn power switch ON.

4. Check DTC.
Is DTC detected?

YES

>> Proceed to 

EVC-244, "Diagnosis Procedure"

.

NO

>> GO TO 3.

3.

PERFORM DTC CONFIRMATION PROCEDURE-2

1. Turn power switch OFF. 

2. Check that the charging status indicator is not illuminating, and wait at least 90 seconds.

CAUTION:

During this period, never perform vehicle handling such as opening and closing of doors. If some

kind of vehicle handling is performed, then wait another 90 seconds or more from the time of the

vehicle handling.

3. Connect EVSE (with AC power input) and wait at least 10 seconds.

4. Disconnect EVSE and wait at least 35 minutes.

NOTE:

After the completion of the self shutoff of VCM, the next step can be performed without waiting for 35 min-

utes. To confirm the completion of self shutoff, check that the power supply terminal voltage of the battery

current sensor changes to approximately 0 V.

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P3131

SYSTEM SHUTOFF TIMEOUT
(System shut-off time out)

When before shutdown, all of the following conditions are 
fulfilled for 31 minutes or more. 
• VCM does not receive a EV system activation request 

signal.

• Either of EV system CAN connection unit is not shut-

down

• Harness or connectors
• LBC
• Traction motor inverter
• PDM (Power Delivery 

Module)

• Electric shift control 

module (built in to VCM)

• A/C auto amp.
• TCU
• VCM