Nissan Leaf. Manual - part 1164

TM-62

< WIRING DIAGRAM >

[ELECTRIC SHIFT]

ELECTRIC SHIFT SYSTEM

AADIA0754GB

DIAGNOSIS AND REPAIR WORK FLOW

TM-63

< BASIC INSPECTION >

[ELECTRIC SHIFT]

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BASIC INSPECTION

DIAGNOSIS AND REPAIR WORK FLOW

Diagnosis Flow

INFOID:0000000010119571

1.

OBTAIN INFORMATION ABOUT SYMPTOM

Refer to 

TM-64, "Question sheet"

 and interview the customer to obtain the malfunction information (conditions

and environment when the malfunction occurred) as much as possible when the customer brings in the vehi-

cle.

>> GO TO 2.

2.

CHECK DTC IN VCM

1. Check DTC in VCM.

2. Check related service bulletins for information.
Are any DTCs detected?

YES

>> Check the DTC. Refer to 

EVC-102, "DTC Index"

.

NO

>> GO TO 3.

3.

CHECK DTC IN ELECTRIC SHIFT

1. Before checking the malfunction, check whether any DTC exists.

2. If DTC exists, perform the following operations.

-

Record the DTC and freeze frame data. (Print out the data using CONSULT and affix them to the Work

Order Sheet.)

-

Erase DTCs.

-

Check the relationship between the cause that is clarified with DTC and the malfunction information

described by the customer.

3. Check the information of related service bulletins and others also.
Do malfunction information and DTC exist?

Malfunction information and DTC exists. >>GO TO 4.

Malfunction information exists, but no DTC. >>GO TO 5.

No malfunction information, but DTC exists. >>GO TO 6.

4.

REPRODUCE MALFUNCTION SYMPTOM

Check any malfunction described by a customer, except those with DTC on the vehicle.

Also investigate whether the symptom is a fail-safe or normal operation. Refer to 

TM-49, "Fail-Safe"

.

When a malfunction symptom is reproduced, the question sheet is effective. Refer to 

TM-64, "Question sheet"

.

Verify the relationship between the symptom and the conditions in which the malfunction described by the cus-

tomer occurs.

 

>> GO TO 6.

5.

REPRODUCE MALFUNCTION SYMPTOM

Check the malfunction described by the customer on the vehicle.

Also investigate whether the symptom is a fail-safe or normal operation. Refer to 

TM-49, "Fail-Safe"

.

When a malfunction symptom is reproduced, the question sheet is effective. Refer to 

TM-64, "Question sheet"

.

Verify the relationship between the symptom and the conditions in which the malfunction described by the cus-

tomer occurs.

>> GO TO 8.

6.

PERFORM “DTC CONFIRMATION PROCEDURE”

Perform “DTC CONFIRMATION PROCEDURE” of the appropriate DTC to check if DTC is detected again.

Refer to 

TM-50, "DTC Inspection Priority Chart"

 when multiple DTCs are detected, and then determine the

order for performing the diagnosis.

NOTE:

If no DTC is detected, refer to the freeze frame data.

TM-64

< BASIC INSPECTION >

[ELECTRIC SHIFT]

DIAGNOSIS AND REPAIR WORK FLOW

Is any DTC detected?

YES

>> GO TO 7.

NO

>> Check according to 

GI-53, "Intermittent Incident"

.

7.

REPAIR OR REPLACE THE MALFUNCTIONING PARTS

Repair or replace the detected malfunctioning parts.

Reconnect parts or connector after repairing or replacing, and then erase DTC if necessary.

>> GO TO 8.

8.

FINAL CHECK

Perform “DTC CONFIRMATION PROCEDURE” again to make sure that the repair is correctly performed.

Check that malfunctions are not reproduced when obtaining the malfunction information from the customer,

referring to the symptom inspection result in step 4 or 5.
Is DTC or malfunction symptom reproduced?

YES

>> GO TO 2.

NO

>> Before delivering the vehicle to the customer, make sure that DTC is erased.

Question sheet

INFOID:0000000010119572

DESCRIPTION

By understanding those conditions properly, a quick and exact diag-

nosis can be achieved.

In general, customers have their own criteria for a problem. There-

fore, it is important to understand the symptom and status well

enough by asking the customer about the concerns carefully. In

order to systemize all the information for the diagnosis, prepare the

question sheet referring to the question points.

WORKSHEET SAMPLE

SEF907L

Question Sheet

Customer name       MR/MS

Motor No.

Manuf. Date

Incident Date

VIN

Model & Year

In Service Date

Mileage

km / Mile

Symptoms

†

 Vehicle does not move     († Any position † Particular position                                          )

†

 Does not shift P position

†

 Does not shift R, N and D positions

†

 Others

Frequency

†

 All the time

†

 Under certain conditions

†

 Sometimes (           times a day)

Weather conditions

†

 Not affected

Weather

†

 Fine

†

 Clouding

†

 Raining

†

 Snowing

†

 Other (                                        )

Temp.

†

 Hot

†

 Warm

†

 Cool

†

 Cold

†

 Temp.

[Approx.       

°C (       °F)]

Humidity † High

†

 Middle

†

 Low

Road conditions

†

 Not affected

†

 In town

†

 In suburbs

†

 Freeway

†

 Off road (Up / Down)

DIAGNOSIS AND REPAIR WORK FLOW

TM-65

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Driving conditions

†

 Not affected

†

 At starting

†

 While idling

†

 While engine racing

†

 At racing

†

 While cruis-

ing

†

 While accelerating

†

 While decelerating

†

 While turning (Right / Left)

†

 Vehicle speed [                          km/h (                   MPH)]

Other conditions

Question Sheet