Nissan Pathfinder. Manual - part 1082

SYSTEM

SRC-13

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SEAT BELT WARNING LAMP SYSTEM : System Description

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The seat belt warning lamp (1) will remind the driver if the driver or

front passenger seat belt should be buckled. The system works in

conjunction with the occupant classification system. Refer to 

SRC-

11, "OCCUPANT CLASSIFICATION SYSTEM : System Descrip-

tion"

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Seat Belt Warning System Operation

AWHIA0392ZZ

Driver seat status
(Ignition switch ON)

Passenger seat status

Seat belt buckle switch 
(driver side) status

Seat belt buckle switch 
(passenger side) status

Seat belt warning lamp

Seat occupied

Seat occupied

Buckled

Buckled

Off

Unbuckled

On

Seat unoccupied

—

Off

—

Unbuckled

On

SRC-14

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (AIR BAG)

DIAGNOSIS SYSTEM (AIR BAG)

Diagnosis Description

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CAUTION:

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to do so in

this Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harness con-

nectors.

• Do not attempt to repair, splice or modify SRS wiring harnesses. If a harness is damaged, replace it

with a new one.

• Keep ground connections clean.

HOW TO PERFORM TROUBLE DIAGNOSES FOR QUICK AND ACCURATE REPAIR

1. Obtain information about the symptom.

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WHAT - vehicle model

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WHEN - date, frequencies

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WHERE - road conditions

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HOW - operating conditions, symptoms, passengers

2. Perform Preliminary Check.

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Battery

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Fuses

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Harness connections

DIAGNOSIS METHODS

SRS self-diagnosis results can be read by using the AIR BAG warning lamp or CONSULT.

The User Mode is for the customer (driver). This mode warns the driver of a system malfunction through the

AIR BAG warning lamp.

The Diagnosis Mode is for the technician. This mode helps the technician locate the malfunctioning circuit or

part.

SRS Operation Check

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USER MODE

1. Turn the ignition switch from OFF to ON and check that the air bag warning lamp blinks.

2. Compare the blinking pattern with the examples in the table.

User Mode

Diagnosis Mode

Display type

AIR BAG warning lamp

X

X

ON/OFF

CONSULT

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X

Monitoring

BF-1845D

DIAGNOSIS SYSTEM (AIR BAG)

SRC-15

< SYSTEM DESCRIPTION >

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Air bag warning lamp flashing pattern (User Mode)

Trouble Diagnosis with CONSULT

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1. Connect CONSULT.

2. DTC is displayed on SELF-DIAG RESULTS.

NOTE:

If a malfunction is not detected on SELF-DIAG RESULTS [CURRENT], but a malfunction is detected during

SRS Operation Check, the following cases may exist:

• SELF-DIAG [PAST] memory might not be erased. Refer to 

SRC-16, "SRS Final Check"

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• SRS system malfunctions intermittently. Refer to 

SRC-42, "Inspection Procedure"

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Warning lamp

SRS condition

Reference item

• No malfunction is detected.
• No further action is necessary.

—

The system is malfunctioning and 
needs to be repaired.

Refer to 

SRC-15, "Trouble Diagno-

sis with CONSULT"

 or 

SRC-16, 

"Trouble Diagnosis without CON-
SULT"

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Zero point reset is incomplete

Refer to 

SRC-41, "ZERO POINT 

RESET : Special Repair Require-
ment"

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• Air bag is deployed.
• Seat belt pre-tensioner is deployed.

Refer to 

SR-5, "For Frontal Collision"

 

or 

SR-7, "For Side and Rollover Col-

lision"

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• Air bag diagnosis sensor unit is mal-

functioning.

• Air bag power supply circuit is mal-

functioning.

• SRS air bag warning lamp circuit is 

malfunctioning.

Refer to 

SRC-105, "AIR BAG Warn-

ing Lamp Does Not Turn Off"

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• Air bag diagnosis sensor unit is mal-

functioning.

• Air bag warning lamp circuit is mal-

functioning.

Refer to 

SRC-104, "AIR BAG Warn-

ing Lamp Does Not Turn On"

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SHIA0011E

SHIA0012E

SHIA0013E

SHIA0014E

SRC-16

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (AIR BAG)

Trouble Diagnosis without CONSULT

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DIAGNOSIS MODE

NOTE:

Diagnosis Mode can not be entered if a malfunction is not detected in User Mode.

1. Turn ignition switch ON.

2. After AIR BAG warning lamp lights for 7 seconds, turn ignition switch OFF within 1 second.

3. Wait more than 3 seconds.

4. Repeat steps 1 to 3 two more times (3 times total).

5. Turn ignition switch ON.

SRS is now in Diagnosis Mode. Refer to 

SRC-22, "Flash Code Index"

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SRS History Check

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SRS HISTORY CHECK

1. Check repair history of the SRS. If no repairs have been made, perform 

SRC-14, "SRS Operation Check"

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If repairs have been made, GO TO step 2.

2. Erase "SELF-DIAG [PAST]" after repair. Refer to 

SRC-16, "SRS Final Check"

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SRS Final Check

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DIAGNOSIS MODE

1. Connect CONSULT.

2. Confirm that zero point reset of OCS is complete.

3. If no DTCs are detected on “SELF-DIAG RESULTS [CURRENT]”, repair of SRS is completed. Go to step

4.

If any DTCs are detected on “SELF-DIAG RESULTS [CURRENT]”, the malfunction has not been repaired

completely or another malfunction is being detected. Perform SRS Operation Check again. Refer to 

SRC-

14, "SRS Operation Check"

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4. Touch “ERASE”.

NOTE:

Touching “ERASE” will clear the SRS memory of the malfunction (“SELF-DIAG [PAST]”). If “SELF-

DIAG [PAST]” is not erased, User Mode may show the previous system malfunction even if the

malfunction has been repaired completely.

5. Check that no malfunction is detected in “SELF-DIAG [PAST]”.

6. Exit Diagnosis Mode and disconnect the CONSULT.

7. Perform SRS Operation Check. Refer to 

SRC-14, "SRS Operation Check"

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CONSULT Function (AIR BAG)

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CAUTION:

After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must

be cycled OFF 

→ ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go

to ”sleep mode”, potentially causing a discharged battery and a no-start condition. 

CONSULT can display each diagnostic item using the diagnostic test modes shown following.

Diagnostic Test Mode

Diagnostic Item

Description

Self Diagnostic Result

SELF-DIAG RESULT [CURRENT]

A current Self-diagnosis result (also indicated by the number of 
warning lamp flashes in the Diagnosis mode) is displayed on the 
CONSULT screen in real time. This refers to a malfunctioning part 
requiring repairs.

Data Monitor

DATA MONITOR

Displays air bag diagnosis sensor unit input/output data in real time.