Infiniti FX35, FX50 (S51). Manual - part 1710

DIAGNOSIS AND REPAIR WORK FLOW

SRC-5

< BASIC INSPECTION >

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BASIC INSPECTION

DIAGNOSIS AND REPAIR WORK FLOW

Work Flow

INFOID:0000000005241044

OVERALL SEQUENCE

DETAILED FLOW

JMHIA1324GB

SRC-6

< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORK 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-16, "Air Bag Warning Lamp Diagnosis"

.

Are any malfunction detected?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK LOW VOLTAGE 

Check low voltage. Refer to 

PG-3, "How to Handle Battery"

.

Are any malfunction detected?

YES

>> GO TO 9.

NO

>> Check intermittent incident. Refer to 

GI-36, "Intermittent Incident"

.

5.

CHECK SELF DIAGNOSTIC RESULTS

Check self diagnostic result with CONSULT-III 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-III.)
• 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-16, "Air Bag Warning Lamp Diag-

nosis"

. 

2.

Perform Diagnosis Procedure for the air bag warning lamp operation. Refer to 

SRC-16, "Air Bag Warning

Lamp Diagnosis"

 (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

DIAGNOSIS AND REPAIR WORK FLOW

SRC-7

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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.

SRC-8

< BASIC INSPECTION >

INSPECTION AND ADJUSTMENT

INSPECTION AND ADJUSTMENT

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description

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When replacing or removing and installing passenger seat, always perform zero point reset so that Occupant
Detection System is activated normally.

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement

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WORK PROCEDURE WHEN REPLACING CONTROL UNIT

1.

PERFORM ZERO POINT RESET

Perform zero point reset. Refer to 

SRC-8, "ZERO POINT RESET : Special Repair Requirement"

.

Is zero point reset performed normally?

YES

>> INSPECTION END

NO

>>

Check condition as per the following, and perform zero point reset again.

• Passenger seat is occupied by an object.
• Excessive vibration is applied while performing zero point reset.
• Occupant detection system is malfunctioning.

NOTE:
If “Incomplete” is displayed on “zero point reset current status”, zero point reset is not completed
normally. Check the condition as per the following and perform zero point reset again.

• Passenger seat is occupied by an object.
• Excessive vibration is applied while performing zero point reset.
• Occupant detection system is malfunctioning.

ZERO POINT RESET

ZERO POINT RESET : Description

INFOID:0000000005241047

Zero point reset is an initializing procedure for occupant detection sensor that must be performed when replac-
ing or removing and installing passenger seat.
If zero point reset is not performed, the initialization is incomplete and Occupant Detection System does not
operate normally.
NOTE:
• When zero point reset is performed once after removal and installation of passenger seat, CONSULT-III dis-

plays “complete”.

• When reinstalling passenger seat after removal, the initial value for occupant detection sensor changes, and

Occupant Detection System does not operate normally.

• Always perform zero point reset after performing the work as per the following. 
- Reinstallation of passenger seat
- Installation of passenger seat that is zero point reset complete
- Installation of passenger seat that is zero point reset in complete

ZERO POINT RESET : Special Repair Requirement

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1.

PERFORM ZERO POINT RESET

1.

Perform zero point reset.
NOTE:
When performing zero point reset, be careful of the items described as per the following.
• Perform zero point reset after installing passenger seat to the vehicle
• Do not put any objects on passenger seat
• Do not apply excessive vibration to the vehicle
• Do not touch the vehicle
• Do not tilt the vehicle

2.

Select start on “Zero point reset function” screen from, WORK SUPPORT of CONSULT-III “OCCUPANT
DETECTION”.