Nissan Versa Note. Manual - part 721

DIAGNOSIS AND REPAIR WORKFLOW

SEC-163

< BASIC INSPECTION >

[WITHOUT INTELLIGENT KEY SYSTEM]

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DETAILED FLOW

1.

GET INFORMATION FOR SYMPTOM

Get the detailed information from the customer about the symptom (the condition and the environment when

the incident/malfunction occurred).

>> GO TO 2

2.

CHECK DTC

1. Check DTC for BCM.

2. Perform the following procedure if DTC is displayed.

-

Erase DTC.

-

Study the relationship between the cause detected by DTC and the symptom described by the customer.

3. Check related service bulletins for information.
Is any symptom described and any DTC detected?

Symptom is described, DTC is displayed>>GO TO 3

Symptom is described, DTC is not displayed>>GO TO 4

Symptom is not described, DTC is displayed>>GO TO 5

3.

CONFIRM THE SYMPTOM

Confirm the symptom described by the customer.

Connect CONSULT to the vehicle in “DATA MONITOR” mode and check real-time diagnosis results.

Verify relation between the symptom and the condition when the symptom is detected.

>> GO TO 5

4.

CONFIRM THE SYMPTOM

Confirm the symptom described by the customer.

Connect CONSULT to the vehicle in “DATA MONITOR ” mode and check real-time diagnosis results.

Verify relation between the symptom and the condition when the symptom is detected.

>> GO TO 6

5.

PERFORM DTC CONFIRMATION PROCEDURE

Perform DTC Confirmation Procedure for the displayed DTC, and then check that DTC is detected again.

If two or more DTCs are detected, refer to 

BCS-109, "DTC Inspection Priority Chart"

 (BCM) and determine

trouble diagnosis order.
Is DTC detected?

YES

>> GO TO 7

NO

>> Refer to 

GI-41, "Intermittent Incident"

.

6.

DETECT MALFUNCTIONING SYSTEM BY SYMPTOM TABLE

Detect malfunctioning system according to Symptom Table based on the confirmed symptom in step 4.

>> GO TO 7

7.

DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE

Inspect according to Diagnostic Procedure of the system.

NOTE:

The Diagnostic Procedure is described based on open circuit inspection. A short circuit inspection is also

required for the circuit check in the Diagnostic Procedure.

>> GO TO 8

8.

REPAIR OR REPLACE THE MALFUNCTIONING PART

1. Repair or replace the malfunctioning part.

2. Reconnect parts or connectors disconnected during Diagnostic Procedure again after repair and replace-

ment.

SEC-164

< BASIC INSPECTION >

[WITHOUT INTELLIGENT KEY SYSTEM]

DIAGNOSIS AND REPAIR WORKFLOW

3. Check DTC. If DTC is displayed, erase it.

>> GO TO 9

9.

FINAL CHECK

When DTC was detected in step 8, perform DTC Confirmation Procedure or Component Function Check

again, and then check that the malfunctions have been fully repaired.

When symptom was described by the customer, refer to the confirmed symptom in step 3 or 4, and check that

the symptom is not detected.
Does the symptom reappear?

YES (DTC is detected)>>GO TO 7

YES (Symptom remains)>>GO TO 6

NO

>> Inspection End.

INSPECTION AND ADJUSTMENT

SEC-165

< BASIC INSPECTION >

[WITHOUT INTELLIGENT KEY SYSTEM]

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INSPECTION AND ADJUSTMENT

ECM RE-COMMUNICATING FUNCTION
ECM RE-COMMUNICATING FUNCTION : Description

INFOID:0000000009521004

Performing following procedure can automatically perform re-communication of ECM and BCM, but only when

the ECM has been replaced with a new one (*1).

*1: New one means an ECM which has never been energized on-board.

(In this step, initialization procedure by CONSULT is not necessary)

NOTE:

• When registering new Key IDs or replacing the ECM that is not brand new, refer to CONSULT Immo-

bilizer mode and follow the on-screen instructions.

• If multiple keys are attached to the key holder, separate them before work.

• Distinguish keys with unregistered key ID from those with registered ID.

ECM RE-COMMUNICATING FUNCTION : Special Repair Requirement

INFOID:0000000009521005

1.

PERFORM ECM RE-COMMUNICATING FUNCTION

1. Install ECM.

2. Using a registered key (*2), turn ignition switch to “ON”.

*2: To perform this step, use the key that has been used before performing ECM replacement.

3. Maintain ignition switch in “ON” position for at least 5 seconds.

4. Turn ignition switch to “OFF”.

5. Start engine.
Can engine be started?

YES

>> Procedure is completed.

NO

>> Initialize control unit. Refer to CONSULT Immobilizer mode and follow the on-screen instructions.

SEC-166

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

P1610 LOCK MODE

DTC/CIRCUIT DIAGNOSIS

P1610 LOCK MODE

Description

INFOID:0000000009521010

When the starting operation is carried more than five times consecutively under the following conditions, NATS

will shift to the mode which prevents the engine from being started.

• Unregistered mechanical key is used.

• BCM or ECM's malfunctioning.

DTC Logic

INFOID:0000000009521011

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON.

2. Check “Self diagnostic result” with CONSULT.
Is DTC detected?

YES

>> Refer to 

SEC-166, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009521012

1.

CHECK ENGINE START FUNCTION

1. Perform the check for DTC except DTC P1610.

2. Use CONSULT to erase DTC after fixing.

3. Check that engine can start with registered mechanical key.
Does the engine start?

YES

>> Inspection End.

NO

>> GO TO 2

2.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-41, "Intermittent Incident"

.

>> Inspection End.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

P1610

LOCK MODE

When the starting operation is carried out 
five or more times consecutively under the 
following conditions.
• Unregistered mechanical key
• BCM or ECM's malfunctioning.

• Mechanical key
• BCM
• ECM