Nissan Quest E52. Manual - part 1128

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:0000000009649851

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

INFOID:0000000009649852

WORK PROCEDURE WHEN REPLACING CONTROL UNIT

1.

PERFORM ZERO POINT RESET

Perform zero point reset. Refer to 

SRC-41, "ZERO POINT RESET : Special Repair Requirement"

.

>>  END

ZERO POINT RESET

ZERO POINT RESET : Description

INFOID:0000000009649853

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 replacing passenger seat with a NISSAN genuine part, air bag warning lamp blinks if zero point reset

is incomplete.

• When zero point reset is performed once after removal and installation of passenger seat, CONSULT dis-

plays “complete” and air bag warning does not blink.

• 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
- Replacement of passenger seat with a seat that is zero point reset complete.

ZERO POINT RESET : Special Repair Requirement

INFOID:0000000009649854

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 “OCCUPANT
DETECTION”.

3.

“Zero point reset” starts. 

>> GO TO 2.

2.

CONFIRMATION OF SETTING

1.

Proceed to “Zero point reset function” screen from work support of CONSULT “OCCUPANT DETEC-
TION”.

2.

Check that “Complete” or “Incomplete” is displayed on “Zero point reset status”.

CAUTION:

SRC-42

< BASIC INSPECTION >

INSPECTION AND ADJUSTMENT

• “Complete” is displayed on “zero point reset current status” if the seat is reinstalled by seat removal

and installation, or “zero point reset” is already performed.

• “Zero point reset current status” displays “Incomplete” if a new seat is installed. When turning key

switch ON without performing zero point reset, air bag warning lamp blinks. When zero point reset is
performed, air bag warning lamp turns OFF.

• Air bag warning lamp blinks in user mode only.
• Air bag sensor unit does not record whether or not zero point reset is performed.

Is condition “ALREADY PERFORMED”?

YES

>> Print out “ZERO POINT RESET CURRENT STATUS” screen, and 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.

B1001, B1002, B1003, B1004, B1005 DIAGNOSIS SENSOR UNIT

SRC-43

< DTC/CIRCUIT DIAGNOSIS >

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DTC/CIRCUIT DIAGNOSIS

B1001, B1002, B1003, B1004, B1005 DIAGNOSIS SENSOR UNIT

DTC Logic

INFOID:0000000009649855

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAG RESULT

 With CONSULT

1.

Turn ignition switch ON.

2.

Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT.

 Without CONSULT

1.

Turn ignition switch ON.

2.

Check the air bag warning lamp status. Refer to 

SRC-15, "On Board Diagnosis Function"

.

NOTE:
SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.

Is malfunctioning part detected?

YES

>> Refer to 

SRC-43, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009649856

WARNING:

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait 3 minutes

or more. (To discharge backup capacitor.)

• Never use unspecified tester or other measuring device. 

1.

CHECK HARNESS CONNECTOR

Check the harness connector.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace harness connectors.

2.

CHECK WIRING HARNESS

Check the wiring harness externals.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace wiring harness.

3.

REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

1.

Replace air bag diagnosis sensor unit. Refer to 

SR-29, "Removal and Installation"

.

2.

Perform DTC confirmation procedure. Refer to 

SRC-43, "DTC Logic"

.

Is DTC detected?

YES

>>  GO TO 1.

NO

>> INSPECTION END

DTC

Display contents of 

CONSULT

DTC detecting condition

Possible cause

B1001
B1002
B1003
B1004
B1005

CONTROL UNIT

Air bag diagnosis sensor unit is malfunctioning

Malfunction in air bag diagnosis sensor unit

SRC-44

< DTC/CIRCUIT DIAGNOSIS >

B1006, B1007, B1008, B1009, B1010 DIAGNOSIS SENSOR UNIT

B1006, B1007, B1008, B1009, B1010 DIAGNOSIS SENSOR UNIT

DTC Logic

INFOID:0000000009649857

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAG RESULT

 With CONSULT

1.

Turn ignition switch ON.

2.

Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT.

 Without CONSULT

1.

Turn ignition switch ON.

2.

Check the air bag warning lamp status. Refer to 

SRC-15, "On Board Diagnosis Function"

.

NOTE:
SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.

Is malfunctioning part detected?

YES

>> Refer to 

SRC-44, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009649858

WARNING:

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait 3 minutes

or more. (To discharge backup capacitor.)

• Never use unspecified tester or other measuring device. 

1.

CHECK HARNESS CONNECTOR

Check the harness connector.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace harness connectors.

2.

CHECK WIRING HARNESS

Check the wiring harness externals.
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace wiring harness.

3.

REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

1.

Replace air bag diagnosis sensor unit. Refer to 

SR-29, "Removal and Installation"

2.

Perform DTC confirmation procedure. Refer to 

SRC-44, "DTC Logic"

Is DTC detected?

YES

>>  GO TO 1.

NO

>> INSPECTION END

DTC

Display contents of 

CONSULT

DTC detecting condition

Possible cause

B1006
B1007
B1008
B1009
B1010

CONTROL UNIT 

Air bag diagnosis sensor unit is malfunctioning

Malfunction in air bag diagnosis sensor unit