Nissan Sentra. Instruction — part 801
DIAGNOSIS AND REPAIR WORK FLOW
SRC-39
< BASIC INSPECTION >
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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"
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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
1. Check air bag warning lamp operation in the user mode. Refer to
SRC-15, "On Board Diagnosis Func-
2. Perform Diagnosis Procedure for the air bag warning lamp operation. Refer to
(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
SRC-40
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORK FLOW
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.
INSPECTION AND ADJUSTMENT
SRC-41
< BASIC INSPECTION >
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INSPECTION AND ADJUSTMENT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description
INFOID:0000000009757943
WARNING:
Always perform zero point reset using CONSULT when removing and installing the front passenger
seat or servicing the occupant classification system. If zero point reset is not performed, the OCS may
not operate normally, which may increase the risk of serious injury in a collision.
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement
INFOID:0000000009757944
WORK PROCEDURE WHEN REPLACING OCS CONTROL UNIT
1.
PERFORM ZERO POINT RESET
Perform zero point reset. Refer to
SRC-41, "ZERO POINT RESET : Special Repair Requirement"
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>> Inspection End.
ZERO POINT RESET
ZERO POINT RESET : Description
INFOID:0000000009757945
Zero point reset is an initializing procedure for the OCS (weight) sensors that must be performed using CON-
SULT when removing and installing passenger seat or servicing the OCS system. If zero point reset is not per-
formed, the initialization is incomplete and OCS may not operate normally.
NOTE:
• When reinstalling the passenger seat, the initial value for the OCS sensors may change, and the OCS may
not operate normally.
• When zero point reset is performed after removal and installation of passenger seat, CONSULT displays
”complete”.
ZERO POINT RESET : Special Repair Requirement
INFOID:0000000009757946
1.
PERFORM ZERO POINT RESET
1. Perform preliminary checks:
NOTE:
• Level the vehicle
• Minimize vibrations near the vehicle
• Remove any objects on passenger seat
• Do not touch the vehicle during zero point reset
2. Select START on ZERO POINT RESET from, WORK SUPPORT of “OCCUPANT DETECTION”.
3. “Zero point reset” starts.
>> GO TO 2.
2.
CONFIRM RESET
1. Check that ”Complete” is displayed on “Zero point reset status”.
CAUTION:
• “Complete” may be displayed if the seat has been reinstalled, or “zero point reset” has already been
performed.
• ”Incomplete” may be displayed if a new seat is installed.
• Air bag warning lamp flashes in user mode if zero point reset is ”incomplete”.
Is zero point reset status ”complete”?
YES
>> Print out “ZERO POINT RESET CURRENT STATUS” screen. Inspection end.
NO
>> Recheck the preliminary check items and perform zero point reset again.
SRC-42
< BASIC INSPECTION >
INTERMITTENT INCIDENT
INTERMITTENT INCIDENT
Inspection Procedure
INFOID:0000000009757947
INTERMITTENT TROUBLE
An intermittent incident may have occurred in the past but is not being detected currently. This DTC will not be
detected on SELF-DIAG [CURRENT], but may be viewed on SELF-DIAG [PAST] if the DTC has not been
erased.
Trouble Diagnosis with CONSULT
INFOID:0000000009757948
CHECK SRS REPAIR HISTORY
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