Nissan Qashqai J11. Manual — part 1445
DIAGNOSIS AND REPAIR WORK FLOW
SEC-79
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1.
GET INFORMATION FOR SYMPTOM
1.
Get detailed information from the customer about the symptom (the condition and the environment when
the incident/malfunction occurs).
2.
Check operation condition of the function that is malfunctioning.
>> GO TO 2.
2.
CHECK DTC
1.
Check DTC.
2.
Perform the following procedure if DTC is detected.
-
Record DTC and freeze frame data (Print them out using CONSULT.)
-
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.
Are any symptoms described and any DTC detected?
Symptom is described, DTC is detected>>GO TO 3.
Symptom is described, DTC is not detected>>GO TO 4.
Symptom is not described, DTC is detected>>GO TO 5.
3.
CONFIRM THE SYMPTOM
Try to confirm the symptom described by the customer.
Also study the normal operation and fail-safe related to the symptom.
Verify relation between the symptom and the condition when the symptom is detected.
>> GO TO 5.
4.
CONFIRM THE SYMPTOM
Try to confirm the symptom described by the customer.
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 detected DTC, and then check that DTC is detected
again. At this time, always connect CONSULT to the vehicle, and check self diagnostic results in real time.
If two or more DTCs are detected, refer to
BCS-88, "DTC Inspection Priority Chart"
and determine trouble
diagnosis order.
NOTE:
• Freeze frame data is useful if the DTC is not detected.
• Perform Component Function Check if DTC CONFIRMATION PROCEDURE is not included on Service
Manual. This simplified check procedure is an effective alternative though DTC cannot be detected during
this check.
If the result of Component Function Check is NG, it is the same as the detection of DTC by DTC CONFIR-
MATION PROCEDURE.
Is DTC detected?
YES
>> GO TO 7.
NO
>> Check according to
GI-44, "Intermittent Incident"
.
6.
DETECT MALFUNCTIONING SYSTEM BY SYMPTOM DIAGNOSIS
Detect malfunctioning system according to SYMPTOM DIAGNOSIS based on the confirmed symptom in step
4, and determine the trouble diagnosis order based on possible causes and symptom.
Is the symptom described?
YES
>> GO TO 7.
NO
>> Monitor input data from related sensors or check voltage of related module terminals using CON-
SULT.
7.
DETECT MALFUNCTIONING PART BY DIAGNOSIS PROCEDURE
SEC-80
< BASIC INSPECTION >
[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS AND REPAIR WORK FLOW
Inspect according to Diagnosis Procedure of the system.
Is malfunctioning part detected?
YES
>> GO TO 8.
NO
>> Check according to
GI-44, "Intermittent Incident"
.
8.
REPAIR OR REPLACE THE MALFUNCTIONING PART
1.
Repair or replace the malfunctioning part.
2.
Reconnect parts or connectors disconnected during Diagnosis Procedure again after repair and replace-
ment.
3.
Check DTC. If DTC is detected, erase it.
>> GO TO 9.
9.
FINAL CHECK
When DTC is detected in step 2, perform DTC CONFIRMATION PROCEDURE again, and then check that the
malfunction is repaired securely.
When symptom is described by the customer, refer to confirmed symptom in step 3 or 4, and check that the
symptom is not detected.
Is DTC detected and does symptom remain?
YES-1 >> DTC is detected: GO TO 7.
YES-2 >> Symptom remains: GO TO 4.
NO
>> Before returning the vehicle to the customer, always erase DTC.
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
SEC-81
< BASIC INSPECTION >
[WITH INTELLIGENT KEY SYSTEM]
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ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ECM
ECM : Description
INFOID:0000000011863542
Performing the following procedure can automatically activate recommunication of ECM and BCM, but only
when the ECM is replaced with a new one*.
*: New one means a virgin ECM that has never been energized on-board.
(In this step, initialization procedure using CONSULT is not necessary)
NOTE:
• When the replaced ECM is not a brand new, the specified procedure (Initialization of BCM and regis-
tration of Intelligent Keys) using CONSULT is necessary.
• If multiple keys are attached to the key holder, separate them before beginning work.
• Distinguish keys with unregistered key IDs from those with registered IDs.
ECM : Work Procedure
INFOID:0000000011863543
1.
PERFORM ECM RECOMMUNICATING FUNCTION
1.
Install ECM.
2.
Contact backside of the registered Intelligent Key* to push-button ignition switch while brake pedal is
depressed, then turn ignition switch ON.
*: To perform this step, use the key that is used before performing ECM replacement.
3.
Maintain ignition switch in the ON position for at least 5 seconds.
4.
Turn ignition switch OFF.
5.
Check that the engine starts.
>> GO TO 2.
2.
PERFORM ADDITIONAL SERVICE WHEN REPLACING ECM
Perform the following procedure.
• MR20DD:
• HRA2DDT:
• R9M:
>> END
STEERING LOCK UNIT
STEERING LOCK UNIT : Description
INFOID:0000000010450572
Performing the following procedure can automatically activate recommunication of steering lock unit and
BCM, but only when the steering lock unit is replaced with a new one*.
*: New one means a virgin steering lock unit that has never been energized on-board.
(In this step, initialization procedure using CONSULT is not necessary)
NOTE:
• When the replaced steering lock unit is not a brand new, the specified procedure (Initialization of
BCM and registration of Intelligent Keys) using CONSULT is necessary.
• If multiple keys are attached to the key holder, separate them before beginning work.
• Distinguish keys with unregistered key IDs from those with registered IDs.
STEERING LOCK UNIT : Work Procedure
INFOID:0000000010450573
1.
PERFORM STEERING LOCK UNIT RECOMMUNICATING FUNCTION
1.
Install steering lock unit.
2.
Contact backside of registered Intelligent Key* to push-button ignition switch, then turn ignition switch ON.
*: To perform this step, use the key that is used before performing steering lock unit replacement.
3.
Maintain ignition switch in the ON position for at least 5 seconds.
4.
Turn ignition switch OFF.
SEC-82
< BASIC INSPECTION >
[WITH INTELLIGENT KEY SYSTEM]
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
5.
Check that the ignition switch is turned ON.
>> INSPECTION END
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