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:
Symptom diagnosis
Multi av system
Symptom table
Related to audio
Related to hands-free phone
Before performing diagnosis, confirm that the cellular phone being used
by the customer is compatible with
the vehicle.
It is possible that a malfunction is occurring due to a version change
of th ...
Basic inspection
Diagnosis and repair workflow
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
1. OBTAIN INFORMATION ABOUT SYMPTOM
Interview the customer to obtain as much information as possible about the
conditions and environment under
which the malfunction occurred.
>> GO TO 2.
2. CONFIRM THE SYMPTO ...
C1604 Torque sensor
DTC Logic
DTC DETECTION LOGIC
DTC
Display item
Malfunction detected condition
Possible cause
C1604
TORQUE SENSOR
When torque sensor output signal is malfunctioning
Harness or connector
Torque sensor
EPS control unit
DTC CONFIRMATION ...