Nissan Sentra Service Manual: Diagnosis and repair work flow
Work flow
OVERALL SEQUENCE
DETAILED FLOW
1.INTERVIEW THE CUSTOMER FOR THE SYMPTOM
Interview the customer for the symptom (the condition and the environment when the incident/malfunction occurs).
>> GO TO 2.
2.CHECK SYMPTOM
Check the symptom from the customer information.
>> GO TO 3.
3.CHECK WARNING LAMP OPERATION
Check air bag warning lamp operation in the user mode. Refer to SRC-15, "On Board Diagnosis Function".
Are any malfunction detected? YES >> GO TO 5.
NO >> GO TO 4.
4.CHECK LOW VOLTAGE
Check low voltage.
Are any malfunction detected? YES >> GO TO 9.
NO >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".
5.CHECK SELF DIAGNOSTIC RESULTS
Check self diagnostic result with CONSULT or diagnosis mode.
If it is impossible to switch to diagnosis mode, follow the same procedure that DTC is not detected.
NOTE:
Perform the following procedure if DTC is detected.
- Record DTC (Print them out with CONSULT.)
- Erase self diagnostic result.
- Study the relationship between the malfunction that DTC or air bag warning lamp indicates and the symptom that the customer describes.
- Check related service bulletins for information.
Is DTC detected? YES >> GO TO 6.
NO >> GO TO 7.
6.PERFORM DTC CONFIRMATION PROCEDURE
Perform DTC CONFIRMATION PROCEDURE for the DTC.
>> GO TO 8.
7.PERFORM DIAGNOSIS ACCORDING TO WARNING LAMP OPERATION
- Check air bag warning lamp operation in the user mode. Refer to SRC-15, "On Board Diagnosis Function".
- Perform Diagnosis Procedure for the air bag warning lamp operation. Refer to SRC-15, "On Board Diagnosis Function" (USER MODE).
>> GO TO 9.
8.DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE
Inspect according to Diagnostic Procedure of the DTC.
>> GO TO 9.
9.REPAIR OR REPLACE THE MALFUNCTION PART
Repair or replace the malfunctioning part.
>> GO TO 10.
10.FINAL CHECK
Check self diagnostic result and air bag warning lamp operation in the user mode.
Is the malfunction repaired? YES >> INSPECTION END
NO >> GO TO 2.
Basic inspection
...
Inspection and adjustment
Additional service when replacing control unit
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description
WARNING:
Always perform zero point reset using CONSULT when removing and
installing th ...
Other materials:
Precaution for Work
When removing or disassembling each component, be careful not to damage
or deform it. If a component
may be subject to interference, be sure to protect it with a shop cloth.
When removing (disengaging) components with a screwdriver or similar
tool, be sure to wrap the component
with a ...
Dtc/circuit diagnosis
U1000 can comm circuit
Description
Refer to LAN-7, "CAN COMMUNICATION SYSTEM : System Description".
Dtc logic
DTC DETECTION LOGIC
NOTE:
U1000 can be set if a module harness was disconnected and reconnected,
perhaps during a repair. Confirm
that there are actual CAN diagnostic sym ...
Tightening Torque Table (New Standard Included)
CAUTION:
The special parts are excluded.
The bolts/nuts in these tables have a strength (discrimination)
number/symbol assigned to the head
or the like. As to the relation between the strength grade in these tables
and the strength (discrimination)
number/symbol, refer to “DISCR ...