Nissan Leaf. Manual - part 561

EVC-268

< DTC/CIRCUIT DIAGNOSIS >

P3177 ECU ACTIVATION ERROR

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 normal charge connector (with AC power input) and wait at least 200 seconds.

CAUTION:

When performing the DTC Confirmation Procedure before Diagnosis Procedure, use the EVSE

used at the occurrence of malfunction.

4. Check DTC.
Is DTC detected?

YES

>> Proceed to 

EVC-269, "TYPE 3 : Diagnosis Procedure"

.

NO-1 (before performing diagnosis procedure)>>Proceed to 

EVC-269, "TYPE 3 : Diagnosis Procedure"

.

NO-2 (after performing diagnosis procedure)>>INSPECTION END

TYPE 1
TYPE 1 : Diagnosis Procedure

INFOID:0000000010120728

1.

CHECK DTC

With CONSULT

Check DTC.
Is any DTC other than P3177 detected?

YES

>> Check the DTC. Refer to 

EVC-102, "DTC Index"

.

NO

>> GO TO 2.

2.

CHECK SELF-DIAGNOSTIC RESULT IN TRACTION MOTOR INVERTER

With CONSULT

Check self-diagnostic result in “MOTOR”.
Is any DTC detected?

YES

>> Check the DTC. Refer to 

EVC-102, "DTC Index"

.

NO

>> GO TO 3.

3.

CHECK SELF-DIAGNOSTIC RESULT IN PDM (POWER DELIVERY MODULE)

With CONSULT

Check self-diagnostic result in “CHARGER/PD MODULE”.
Is any DTC detected?

YES

>> Check the DTC. Refer to 

VC-34, "DTC Index"

.

NO

>> Check intermittent incident. Refer to 

GI-53, "Intermittent Incident"

.

TYPE 2
TYPE 2 : Diagnosis Procedure

INFOID:0000000010120729

1.

CHECK CONDITION

Check and study the quick charger to see that it is within the specification.
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Erase DTC. (Quick charger malfunction)

2.

CHECK DTC

With CONSULT

Check DTC.
Is any DTC other than P3177 detected?

YES

>> Check the DTC. Refer to 

EVC-102, "DTC Index"

.

NO

>> GO TO 3.

3.

CHECK SELF-DIAGNOSTIC RESULT IN TRACTION MOTOR INVERTER

With CONSULT

Check self-diagnostic result in “MOTOR”.

P3177 ECU ACTIVATION ERROR

EVC-269

< DTC/CIRCUIT DIAGNOSIS >

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Is any DTC detected?

YES

>> Check the DTC. Refer to 

EVC-102, "DTC Index"

.

NO

>> GO TO 4.

4.

CHECK SELF-DIAGNOSTIC RESULT IN PDM (POWER DELIVERY MODULE)

With CONSULT

Check self-diagnostic result in “CHARGER/PD MODULE”.
Is any DTC detected?

YES

>> Check the DTC. Refer to 

VC-34, "DTC Index"

.

NO

>> Check intermittent incident. Refer to 

GI-53, "Intermittent Incident"

.

TYPE 3
TYPE 3 : Diagnosis Procedure

INFOID:0000000010120730

1.

PERFORM NORMAL CHARGING

1. Erase DTC of all ECU.

2. Turn power switch OFF.

3. 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.

4. Connect normal charge connector (with AC power input) and wait at least 200 seconds.

CAUTION:

• Use an EVSE other than the one used for the previous DTC confirmation procedure.

• Use NISSAN genuine EVSE or an equivalent.

5. Check DTC.
Is DTC P3177 detected again?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK CONDITION

Check adherence to the following conditions at the occurrence of the malfunction:

• No interruption in the indoor power and EVSE.

• Use of the specified EVSE.

• Proper connection of EVSE.

• EVSE LED (FAULT) is not ON or blinking.
Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-53, "Intermittent Incident"

.

NO

>> Repair or replace error-detected parts.

3.

CHECK DTC

With CONSULT

Check DTC.
Is any DTC other than P3177 detected?

YES

>> Check the DTC. Refer to 

EVC-102, "DTC Index"

.

NO

>> GO TO 4.

4.

CHECK SELF-DIAGNOSTIC RESULT IN PDM (POWER DELIVERY MODULE) 

With CONSULT

Check self-diagnostic result in “CHARGER/PD MODULE”.
Is any DTC detected?

YES

>> Check the DTC. Refer to 

VC-34, "DTC Index"

.

NO

>> GO TO 5.

5.

CHECK SELF-DIAGNOSTIC RESULT IN TRACTION MOTOR INVERTER

With CONSULT

EVC-270

< DTC/CIRCUIT DIAGNOSIS >

P3177 ECU ACTIVATION ERROR

Check self-diagnostic result in “MOTOR”.
Is any DTC detected?

YES

>> Check the DTC. Refer to 

TMS-28, "DTC Index"

.

NO

>> GO TO 6.

6.

CHECK CONDITION

Check and study the following items:

• No interruption in the indoor power and EVSE.

• Use of the specified EVSE.

• Proper connection of EVSE.

• PDM (Power Delivery Module) remains cold.
Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-53, "Intermittent Incident"

.

NO

>> Repair or replace error-detected parts.

P3178 ECU ACTIVATION ERROR

EVC-271

< DTC/CIRCUIT DIAGNOSIS >

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P3178 ECU ACTIVATION ERROR

DTC Logic

INFOID:0000000010120731

DTC DETECTION LOGIC

NOTE:

If DTC P3178 is displayed with DTC P0AA0, P317A, P3191, P3193, P319C, P319E, P31A7, or P31A9, per-

form diagnosis for DTC P0AA0, P317A, P3191, P3193, P319C, P319E, P31A7, or P31A9.

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

With CONSULT

1. Turn power switch ON and wait at least 20 seconds.

2. Check DTC.
Is DTC detected?

YES

>> Proceed to 

EVC-271, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010120732

1.

CHECK SELF-DIAGNOSTIC RESULT IN VCM

With CONSULT

Perform self-diagnosis of VCM.
Is DTC other than P3178 detected?

YES

>> Check the DTC. Refer to 

EVC-102, "DTC Index"

.

NO

>> GO TO 2.

2.

CHECK SELF-DIAGNOSTIC RESULT IN TRACTION MOTOR INVERTER

With CONSULT

Check self-diagnostic result in “MOTOR”.
Is any DTC detected?

YES

>> Check the DTC. Refer to 

TMS-28, "DTC Index"

.

NO

>> GO TO 3.

3.

CHECK SELF-DIAGNOSTIC RESULT IN LI-ION BATTERY CONTROLLER 

With CONSULT

Check self-diagnostic result in “HV BAT”.
Is any DTC detected?

YES

>> Check the DTC. Refer to 

EVB-45, "DTC Index"

.

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P3178

ECU ACTIVATION ERROR
(ECU activation error)

When EV system starts up, Li-ion battery or traction motor 
inverter does not permit EV system activation.

• Harness or connectors
• Li-ion battery system
• Traction motor system