2008 INFINITI QX56 warning light

B1023 PASSENGER AIR BAG OFF INDICATORSRC-65
< COMPONENT DIAGNOSIS >
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>> GO TO 2
2.IGNITION SWITCH
After air bag warning lamp lights for 7 seconds, turn ignition switch OFF within 1 second.
>> GO TO 3
3.WAIT TIME
Wait more than 3 seconds.
>> GO TO 4
4.REPEAT STEPS
Repeat steps 1 to 3 twice.
>> GO TO 5
5.IGNITION SWITCH
Turn ignition switch ON.
>> GO TO 6
6.DIAGNOSTIC MODE
SRS system is now in diagnostic mode and AIR BAG warning lamp flashes. Refer to SRC-85, "
Trouble Diag-
nosis without CONSULT-III".
>> END
Diagnosis Procedure (C omponent Diagnosis)INFOID:0000000001735353
Recheck SRS after each replacement.
1.HARNESS CONNECTOR
Is there any visible damage to the connector?
YES or NO
YES >> Replace the harness.
NO >> GO TO 2
2.WIRING HARNESS
Is there any visible damage to the harness?
YES or NO
YES >> Replace the harness.
NO >> GO TO 3
3.FRONT PASSENGER AIR BAG OFF INDICATOR
Replace the front passenger air bag off indicator. Refer to IP-15, "
Removal and Installation".
>> GO TO 4
4.AIR BAG DIAGNOSIS SENSOR UNIT
Replace the air bag diagnosis sensor unit. Refer to SR-17, "
Removal and Installation".
>> GO TO 5
5.RELATED HARNESS
Replace the related harness.
Revision: March 2010 2008 QX56

SRC-68
< COMPONENT DIAGNOSIS >
B1017 – B1022 OCCUPANT CLASSIFICATION SYSTEM
DTC CONFIRMATION PROCEDURE (With CONSULT-lll)
1.INSPECTION START
Turn ignition switch ON.
>> GO TO 2.
2.CHECK SELF-DIAG RESULT
Check for the DTC on CONSULT-lll.
Is the DTC detected?
YES >> Refer to SRC-68, "Diagnosis Procedure (Component Diagnosis)".
NO >> Inspection End.
DTC CONFIRMATION PROCEDURE (Without CONSULT-lll)
NOTE:
SRS will not enter diagnosis mode if no malfunction is detected in user mode.
1.IGNITION SWITCH
Turn ignition switch ON.
>> GO TO 2
2.IGNITION SWITCH
After air bag warning lamp lights for 7 seconds, turn ignition switch OFF within 1 second.
>> GO TO 3
3.WAIT TIME
Wait more than 3 seconds.
>> GO TO 4
4.REPEAT STEPS
Repeat steps 1 to 3 twice.
>> GO TO 5
5.IGNITION SWITCH
Turn ignition switch ON.
>> GO TO 6
6.DIAGNOSTIC MODE
SRS system is now in diagnostic mode and AI R BAG warning lamp flashes. Refer to SRC-7, "
SRS Compo-
nent Parts Location".
>> END
Diagnosis Procedure (C omponent Diagnosis)INFOID:0000000006081144
Recheck SRS after each corrective action.
1.CHECK CURRENT DTC
Does CONSULT-III indicate B1018, B1019, B1020 or B1022?
YES or NO
YES >> GO TO 2
NO >> GO TO 13
Revision: March 2010 2008 QX56

SRC-92
< SYMPTOM DIAGNOSIS >
PASSENGER SEAT BELT WARNING SYSTEM
PASSENGER SEAT BELT WARNING SYSTEM
Seat Belt Warning System Does Not FunctionINFOID:0000000001735365
1.SEAT BELT WARNING LIGHT
Turn ignition switch ON.
Does the seat belt warning lamp come ON?
YES >> GO TO 2
NO >> • Check 10A fuse [No. 14, located in the fuse block (J/B)]. • Check seat belt buckle switch LH.
• Check harness between combination meter and seat belt buckle switch LH.
• Check combination meter. Refer to MWI-25, "
CONSULT-III Function (METER/M&A)".
2.SEAT BELT BUCKLE LH
Fasten the seat belt buckle LH.
Does the seat belt warning lamp go OFF?
YES >> GO TO 3
NO >> • Check seat belt buckle switch LH. • Check harness between combination meter and seat belt buckle switch LH.
3.OCCUPANT CLASSIFICATION SYSTEM
Have a helper sit in the passenger seat.
Does the seat belt warning lamp go ON?
YES >> GO TO 4
NO >> • Check occupant classification system. Refer to SRC-10, "
Occupant Classification System
(OCS)".
• Check harness between occupant classification control unit and air bag diagnosis sensor unit.
4.SEAT BELT BUCKLE RH
Fasten the seat belt buckle RH.
Does the seat belt warning lamp go OFF?
YES >> System OK.
NO >> • Check seat belt buckle switch RH. • Check harness between seat belt buckle switch RH and air bag diagnosis sensor unit.
• Replace air bag diagnosis sensor unit. Refer to SR-17, "
Removal and Installation".
Revision: March 2010 2008 QX56

WCS
WCS-1
DRIVER INFORMATION & MULTIMEDIA
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SECTION WCS
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CONTENTS
WARNING CHIME SYSTEM
BASIC INSPECTION ....... .............................3
DIAGNOSIS AND REPAIR WORKFLOW ..... .....3
Work Flow ........................................................... ......3
FUNCTION DIAGNOSIS ...............................4
WARNING CHIME SYSTEM .......................... .....4
WARNING CHIME SYSTEM .......................................4
WARNING CHIME SYSTEM : System Diagram . ......4
WARNING CHIME SYSTEM : System Description
......
4
WARNING CHIME SYSTEM : Component Parts
Location ............................................................... ......
5
WARNING CHIME SYSTEM : Component De-
scription .....................................................................
5
LIGHT REMINDER WARNING CHIME ................. ......6
LIGHT REMINDER WARNING CHIME : System
Diagram .....................................................................
6
LIGHT REMINDER WARNING CHIME : System
Description ................................................................
6
LIGHT REMINDER WARNING CHIME : Compo-
nent Parts Location ...................................................
7
LIGHT REMINDER WARNING CHIME : Compo-
nent Description ........................................................
7
SEAT BELT WARNING CHIME ............................ ......7
SEAT BELT WARNING CHIME : System Diagram
......
8
SEAT BELT WARNING CHIME : System Descrip-
tion ...................................................................... ......
8
SEAT BELT WARNING CHIME : Component
Parts Location ...........................................................
9
SEAT BELT WARNING CHIME : Component De-
scription .....................................................................
9
KEY WARNING CHIME ......................................... ....10
KEY WARNING CHIME : System Diagram ............10
KEY WARNING CHIME : System Description ........10
KEY WARNING CHIME : Component Parts Loca-
tion ....................................................................... ....
11
KEY WARNING CHIME : Component Description ....11
DIAGNOSIS SYSTEM (METER) .......................12
Diagnosis Description ..............................................12
CONSULT-III Function (METER/M&A) ....................13
DIAGNOSIS SYSTEM (BCM) ...........................16
BUZZER ................................................................. ....16
BUZZER : CONSULT-III Function (BCM - BUZZ-
ER) ..........................................................................
16
COMPONENT DIAGNOSIS .........................17
POWER SUPPLY AND GROUND CIRCUIT ....17
COMBINATION METER ........................................ ....17
COMBINATION METER : Diagnosis Procedure .....17
BCM (BODY CONTROL MODULE) ...................... ....18
BCM (BODY CONTROL MODULE) : Diagnosis
Procedure ............................................................ ....
18
METER BUZZER CIRCUIT ...............................19
Description ...............................................................19
Component Function Check ....................................19
Diagnosis Procedure ..............................................19
SEAT BELT BUCKLE SWITCH SIGNAL CIR-
CUIT ..................................................................
20
Description ...............................................................20
Component Function Check ..................................20
Diagnosis Procedure ..............................................20
Component Inspection .............................................21
KEY SWITCH SIGNAL CIRCUIT ......................22
Description ...............................................................22
Component Function Check ..................................22
Diagnosis Procedure ..............................................22
Component Inspection .............................................23
Revision: March 2010 2008 QX56

WCS-2
WARNING CHIME SYSTEM .............................24
Wiring Diagram .................................................... ...24
ECU DIAGNOSIS ..................................... ...29
COMBINATION METER ................................. ...29
Reference Value .................................................. ...29
Wiring Diagram .......................................................31
Fail Safe .................................................................48
DTC Index ..............................................................49
BCM (BODY CONTROL MODULE) ..................51
Reference Value .................................................. ...51
Terminal Layout ......................................................53
Physical Values ......................................................53
Wiring Diagram .......................................................59
Fail Safe .................................................................62
DTC Inspection Priority Chart ..............................63
DTC Index ........................................................... ...63
SYMPTOM DIAGNOSIS .............................65
THE LIGHT REMINDER WARNING DOES
NOT SOUND ................................................... ...
65
Description ........................................................... ...65
Diagnosis Procedure ...............................................65
THE SEAT BELT WARNING CONTINUES
SOUNDING, OR DOES NOT SOUND ...............
66
Description ........................................................... ...66
Diagnosis Procedure ...............................................66
THE KEY WARNING DOES NOT SOUND .......67
Description ........................................................... ...67
Diagnosis Procedure ...............................................67
PRECAUTION ............................................68
PRECAUTIONS .............................................. ...68
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. ...
68
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ..................................
68
Revision: March 2010 2008 QX56

WCS-4
< FUNCTION DIAGNOSIS >
WARNING CHIME SYSTEM
FUNCTION DIAGNOSIS
WARNING CHIME SYSTEM
WARNING CHIME SYSTEM
WARNING CHIME SYSTEM : System DiagramINFOID:0000000001697653
WARNING CHIME SYSTEM : System DescriptionINFOID:0000000001697654
COMBINATION METER
• The buzzer for warning chime system is installed in the combination meter.
• The buzzer sounds when the combination meter receives a buzzer output signal from each unit.
BCM
BCM receives signals from various units and transmits a buzzer output signal to the combination meter with
CAN communication line if it judges that the warning buzzer should be activated.
BCM warning function list
AWNIA0210GB
Warning functions Signal name
Light reminder warning chime • Lighting switch position signal
• Door switch signal
Seat belt warning chime Seat belt buckle switch signal
Key warning chime • Key switch signal
• Door switch signal
Revision: March 2010
2008 QX56

WCS
WARNING CHIME SYSTEMWCS-5
< FUNCTION DIAGNOSIS >
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WARNING CHIME SYSTEM : Component Parts LocationINFOID:0000000001697655
WARNING CHIME SYSTEM : Component DescriptionINFOID:0000000001697656
AWNIA0211ZZ
1. Combination meter M23, M24 2. Combination switch (lighting switch)
M283. BCM M18, M19, M20 (view with instru-
ment lower panel LH removed)
4. Front door switch LH B8 5. Key switch and ignition knob switch
M12 6. Seat belt buckle pre-tensioner assem-
bly LH (seat belt buckle switch) B74
Unit Description
Combination meter • Receives the seat belt buckle switch signal from the seat belt buckle pre-tensioner assembly
LH (seat belt buckle switch) and transmits it to BCM with CAN communication line.
• Receives a buzzer output signal from BCM with CAN communication line.
BCM Transmits signals provided by various units to the combination meter with CAN communication
line.
Key switch and ignition knob
switch Transmits key switch signal to BCM.
Revision: March 2010
2008 QX56

WCS-6
< FUNCTION DIAGNOSIS >
WARNING CHIME SYSTEM
LIGHT REMINDER WARNING CHIME
LIGHT REMINDER WARNING CHIME : System DiagramINFOID:0000000001697657
LIGHT REMINDER WARNING CHIME : System DescriptionINFOID:0000000001697658
DESCRIPTION
With ignition switch in OFF or ACC position, driver door open, and lighting switch in 1ST or 2ND position, the
light warning chime will sound.
• BCM detects ignition switch in OFF or ACC position, front door switch LH ON, and lighting switch in 1ST or2ND position. And then transmits buzzer output signal (light reminder warning chime) to combination meter
with CAN communication line.
• When combination meter receives buzzer output signal ( light reminder warning chime), it sounds the buzzer.
WARNING OPERATION CONDITIONS
If all of the following conditions are fulfilled• Lighting switch is at 1st or 2nd position
• Ignition switch is at OFF or ACC
• Front door switch LH is ON
WARNING CANCEL CONDITIONS
Warning is canceled if any of the following conditions is fulfilled.
• Lighting switch OFF
• Ignition switch ON
• Front door switch LH is OFF
Seat belt buckle pre-tensioner as-
sembly LH (seat belt buckle
switch)Transmits a seat belt buckle switch signal to the combination meter.
Combination switch
(Lighting switch) Transmits the lighting switch position signal to BCM.
Front door switch LH Transmits the door switch signal to BCM.
Unit
Description
WKIA5465E
Revision: March 2010 2008 QX56