warning INFINITI QX56 2007 Factory Service Manual

WARNING LAMPS
DI-33
< SERVICE INFORMATION >
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No malfunction detected>>GO TO 2.
Malfunction detected>>GO TO PG-18, "
CONSULT-II Function (IPDM E/R)".
2.CHECK IPDM E/R INPUT SIGNAL
Select "IPDM E/R" on CONSULT-II. Operate ignition switch with "OIL
P SW" of "DATA MONITOR" and check operation status.
OK or NG
OK >> Replace combination meter. Refer to IP-10, "Removal
and Installation".
NG >> GO TO 3.
3.CHECK OIL PRESSURE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector E122 and oil pressure switch
connector F4.
3. Check continuity between IPDM E/R harness connector E122
(A) terminal 42 and oil pressure switch harness connector F4 (B)
terminal 1.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4.CHECK OIL PRESSURE SWITCH
Check oil pressure switch. Refer to DI-21, "
Electrical Component Inspection".
OK or NG
OK >> Replace IPDM E/R. Refer to PG-28, "Removal and Installation of IPDM E/R".
NG >> Replace oil pressure switch.
Oil Pressure Warning Lamp Does Not Turn Off (Oil Pressure Is Normal)INFOID:0000000003533507
NOTE:
For oil pressure inspection, refer to DI-21, "
Electrical Component Inspection".
1.CHECK ENGINE OIL PRESSURE GAUGE OPERATION
Observe operation of engine oil pressure gauge.
Does engine oil pressure gauge function properly?
YES >> Replace the combination meter. Refer to IP-10, "Removal and Installation".
NO >> GO TO DI-17, "
Engine Oil Pressure Signal Inspection". When ignition switch is in ON
position (Engine stopped): OIL P SW CLOSE
When engine running : OIL P SW OPEN
LKIA0403E
Continuity should exist.
WKIA5607E

DI-36
< SERVICE INFORMATION >
WARNING CHIME
WARNING CHIME
Component Parts and Harness Connector LocationINFOID:0000000003533510
System DescriptionINFOID:0000000003533511
FUNCTION
Power is supplied at all times
• through 50A fusible link (letter f, located in the fuse and fusible link box)
• to BCM terminal 70,
• through 10A fuse [No. 19, located in the fuse block (J/B)]
1. Fuse block (J/B) 2. Fuse and fusible link box 3. Fuse and relay box
4. Combination meter M24 5. Combination switch (lighting switch)
M286. BCM M18, M19, M20 (view with in-
strument lower panel LH removed)
7. Front door switch LH B8 8. Key switch and key lock solenoid
M279. Seat belt buckle pre-tensioner as-
sembly LH (seat belt buckle switch)
B74
WKIA4594E

WARNING CHIME
DI-37
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• to key switch and key lock solenoid terminal 3.
With ignition switch in ON or START position, power is supplied
• through 10A fuse (No. 59, located in the fuse and relay box)
• to BCM terminal 38.
Ground is supplied
• to BCM terminal 67
• through body grounds M57, M61, and M79.
NOTE:
When ignition key warning chime, light warning chime, and seat belt warning chime are required at the same
time, the priorities for each chime are the following.
1. Light warning chime
2. Ignition key warning chime
3. Seat belt warning chime
IGNITION KEY WARNING CHIME
With the key inserted in the ignition switch, the ignition switch in OFF position, and the driver's door open, the
warning chime will sound.
Power is supplied
• through key switch and key lock solenoid terminal 4
• to BCM terminal 37.
Ground is supplied
• to BCM terminal 47
• through front door switch LH terminal 2.
Front door switch LH is case grounded.
BCM detects key inserted into the ignition switch, and sends key warning signal to combination meter via CAN
communication lines. When the combination meter receives key warning signal, it sounds warning chime.
LIGHT WARNING CHIME
With the key removed from the ignition switch, the driver's door open, and the lighting switch (part of the com-
bination switch) in 1st or 2nd position, the warning chime will sound. [Except when headlamp battery saver
control operates (5 minutes after ignition switch is turned to OFF or ACC position) and headlamps do not illu-
minate.]
Signal is supplied
• from combination switch (lighting switch) terminals 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10
• to BCM terminals 2, 3, 4, 5, 6, 32, 33, 34, 35 and 36.
NOTE:
BCM detected lighting switch in 1st or 2nd position. Refer to LT-72, "
Combination Switch Reading Function".
Ground is supplied
• to BCM terminal 47
• through front door switch LH terminal 2.
Front door switch LH is case grounded.
BCM detects headlamps are illuminated, and sends light warning signal to combination meter CAN communi-
cation lines. When the combination meter receives light warning signal, it sounds warning chime.
SEAT BELT WARNING CHIME
When the ignition switch is turned ON with the seat belt unfastened [seat belt buckle pre-tensioner assembly
LH (seat belt buckle switch) unfastened], warning chime will sound for approximately 6 seconds.
Ground is supplied
• to combination meter terminal 27
• through seat belt buckle pre-tensioner assembly LH (seat belt buckle switch) terminal 4.
Seat belt buckle pre-tensioner assembly LH (seat belt buckle switch) terminal 3 is grounded through body
grounds B7 and B19.
The combination meter sends seat belt buckle switch LH unfastened signal to BCM via CAN communication
line.
BCM receives seat belt buckle pre-tensioner assembly LH (seat belt buckle switch) unfastened signal from
combination meter via CAN communication line, and sends seat belt warning signal to the combination meter
via CAN communication line. When the combination meter receives the seat belt warning signal, it sounds the
warning chime. The BCM controls the (6 second) duration of the seat belt warning chime.
CAN Communication System DescriptionINFOID:0000000003533512
Refer to LAN-4.

DI-38
< SERVICE INFORMATION >
WARNING CHIME
Wiring Diagram - CHIME -
INFOID:0000000003533513
WKWA3627E

WARNING CHIME
DI-39
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Terminal and Reference Value for BCMINFOID:0000000003533514
Refer to BCS-11, "Terminal and Reference Value for BCM".
Terminal and Reference Value for Combination MeterINFOID:0000000003533515
Refer to DI-11, "Terminal and Reference Value for Combination Meter".
WKWA3064E

DI-40
< SERVICE INFORMATION >
WARNING CHIME
How to Proceed with Trouble Diagnosis
INFOID:0000000003533516
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to DI-36, "
System Description".
3. Perform the preliminary check. Refer to DI-40, "
Preliminary Check".
4. Check symptom and repair or replace the cause of malfunction.
5. Does the warning chime operate properly? If so, go to 6. If not, go to 3.
6. Inspection End.
Preliminary CheckINFOID:0000000003533517
INSPECTION FOR POWER SUPPLY AND GROUND CIRCUIT
Refer to BCS-15, "BCM Power Supply and Ground Circuit Inspection".
CONSULT-II Function (BCM)INFOID:0000000003533518
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II START PROCEDURE
Refer to GI-36, "CONSULT-II Start Procedure".
DATA MONITOR
Display Item List
ACTIVE TEST
Display Item List
SELF-DIAGNOSTIC RESULTS
BCM
diagnostic test itemDiagnostic mode Description
Inspection by partWORK SUPPORTSupports inspections and adjustments. Commands are transmitted to the BCM
for setting the status suitable for required operation, input/output signals are re-
ceived from the BCM and received data is displayed.
DATA MONITOR Displays BCM input/output data in real time.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ECU PART NUMBER BCM part number can be read.
CONFIGURATION Performs BCM configuration read/write functions.
Monitored item Description
IGN ON SW Indicates [ON/OFF] condition of ignition switch.
KEY ON SW Indicates [ON/OFF] condition of key switch.
DOOR SW-DR Indicates [ON/OFF] condition of front door switch (driver side).
LIGHT SW 1ST Indicates [ON/OFF] condition of lighting switch.
Test item Malfunction is detected when
LIGHT WARN ALMThis test is able to check light warning chime operation. Light warning chime sounds for 2 seconds
after touching “ON” on CONSULT-II screen.
IGN KEY WARN ALMThis test is able to check key warning chime operation. Key warning chime sounds for 2 seconds
after touching “ON” on CONSULT-II screen.
SEAT BELT WARN TESTThis test is able to check seat belt warning chime operation. Seat belt warning chime sounds for 2
seconds after touching “ON” on CONSULT-II screen.

WARNING CHIME
DI-41
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All Warning Chimes Do Not OperateINFOID:0000000003533519
1.CHECK BCM CHIME OPERATION
Select “BUZZER” on CONSULT-II, and perform “LIGHT WARN
ALM”, "IGN KEY WARN ALM", OR "SEAT BELT WARN TEST"
active test.
Does chime sound?
YES >> Replace the BCM. Refer to BCS-24, "BCM".
NO >> Replace the combination meter. Refer to IP-10,
"Removal and Installation".
Key Warning Chime and Light Warning Chime Do Not Operate (Seat Belt Warning
Chime Does Operate)
INFOID:0000000003533520
1.CHECK BCM INPUT SIGNAL
With CONSULT-II
1. Select "BCM" on CONSULT-II.
2. With "DATA MONITOR" of "BUZZER", confirm "DOOR SW-DR"
changes with the status of front door LH.
Without CONSULT-II
Check voltage between BCM harness connector M19 terminal 47
and ground.
OK or NG
OK >> Replace the BCM. Refer to BCS-24, "BCM".
NG >> GO TO 2.
2.CHECK FRONT DOOR SWITCH LH CIRCUIT
Monitored Item CONSULT-II display Description
CAN communication CAN communication [U1000] Malfunction is detected in CAN communication.
CAN communication system CAN communication system 1 to 6 [U1000] Malfunction is detected in CAN system.
SKIA6331E
When front door LH is
opened: DOOR SW-DR ON
When front door LH is
closed: DOOR SW-DR OFF
LKIA0335E
When front door LH is
opened: Approx. 0V
When front door LH is
closed: Approx. 5V
WKIA1515E

DI-42
< SERVICE INFORMATION >
WARNING CHIME
1. Turn ignition switch OFF.
2. Disconnect BCM connector M19 and front door switch LH con-
nector B8.
3. Check continuity between BCM harness connector M19 terminal
47 and front door switch LH harness connector B8 terminal 2.
4. Check continuity between BCM harness connector M19 terminal
47 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3.CHECK FRONT DOOR SWITCH LH
Check continuity between front door switch LH terminal 2 and
exposed metal of switch while pressing and releasing switch.
OK or NG
OK >> Replace the BCM. Refer to BCS-24, "BCM".
NG >> Replace the front door switch LH.
Key Warning Chime Does Not OperateINFOID:0000000003533521
1.CHECK FUSE
Check if the key switch fuse [No. 19, located in the fuse block (J/B)] is blown. Refer to DI-38, "
Wiring Diagram
- CHIME -".
Is the fuse blown?
YES >> Replace the fuse. Be sure to repair the cause of malfunction before installing new fuse.
NO >> GO TO 2.
2.CHECK WARNING CHIME OPERATION
With key removed from the ignition key cylinder and the front door LH open, turn the lighting switch to 1st or
2nd position.
Does warning chime sound?
YES >> GO TO 3.
NO >> Go to DI-41, "
All Warning Chimes Do Not Operate" or DI-41, "Key Warning Chime and Light
Warning Chime Do Not Operate (Seat Belt Warning Chime Does Operate)".
3.CHECK BCM INPUT SIGNAL
With CONSULT-IIContinuity should exist.
Continuity should not exist.
WKIA1516E
When front door switch
LH is released: Continuity should exist.
When front door switch
LH is pressed: Continuity should not exist.
WKIA2023E

WARNING CHIME
DI-43
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With "DATA MONITOR" of "BUZZER", confirm "KEY ON SW"
changes when the key is inserted/removed from the ignition key cyl-
inder.
Without CONSULT-II
Check voltage between BCM harness connector M18 terminal 37
and ground.
OK or NG
OK >> Replace the BCM. Refer to BCS-24, "BCM".
NG >> GO TO 4.
4.CHECK KEY SWITCH
1. Turn ignition switch OFF.
2. Disconnect key switch and key lock solenoid connector.
3. Check continuity between key switch and key lock solenoid ter-
minals 3 and 4.
OK or NG
OK >> GO TO 5.
NG >> Replace the key switch and key lock solenoid.
5.CHECK KEY SWITCH CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector M18 terminal
37 and key switch and key lock solenoid harness connector M27
terminal 4.
3. Check continuity between BCM harness connector M18 terminal
37 and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.
6.CHECK KEY SWITCH POWER SUPPLY CIRCUITWhen key is inserted in ignition
key cylinder: KEY ON SW ON
When key is removed from igni-
tion key cylinder: KEY ON SW OFF
SKIA1960E
Te r m i n a l s
Condition Voltage (V) (+)
(–)
Connector Terminal
M18 37 GroundKey is insertedBattery voltage
Key is removed 0
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Terminals Condition Continuity
34Key is inserted Yes
Key is removed No
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Continuity should exist.
Continuity should not exist.
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DI-44
< SERVICE INFORMATION >
WARNING CHIME
Check voltage between key switch and key lock solenoid harness
connector M27 terminal 3 and ground.
OK or NG
OK >> Replace the BCM. Refer to BCS-24, "BCM".
NG >> Check harness for open or short between fuse and key
switch and key lock solenoid.
Light Warning Chime Does Not OperateINFOID:0000000003533522
1.CHECK WARNING CHIME OPERATION
Check key warning chime and seat belt warning chime functions.
Do key warning chime and seat belt warning chime sound?
YES >> GO TO 2.
NO >> Go to DI-41, "
All Warning Chimes Do Not Operate".
2.CHECK BCM INPUT SIGNAL
With CONSULT-II
1. Select "BCM".
2. With "DATA MONITOR" of "BUZZER", confirm "LIGHT SW 1ST"
status changes when the lighting switch is moved from ON (1st
position) to OFF.
Without CONSULT-II
Check combination switch. Refer to LT-72, "
Combination Switch
Reading Function".
OK or NG
OK >> Replace the BCM. Refer to BCS-24, "BCM".
NG >> Check lighting switch. Refer to LT-72, "
Combination Switch Reading Function".
Seat Belt Warning Chime Does Not OperateINFOID:0000000003533523
1.CHECK WARNING CHIME OPERATION
1. With key removed from the ignition and the front door LH open, turn the lighting switch to 1st or 2nd posi-
tion.
2. Return lighting switch to OFF position, and insert key into ignition.
Does warning chime sound for both steps?
YES >> GO TO 2.
NO >> Go to DI-41, "
All Warning Chimes Do Not Operate".
2.CHECK SEAT BELT WARNING LAMP OPERATION
Turn ignition switch ON. Buckle and unbuckle the driver seat belt while watching seat belt warning lamp.
OK or NG
OK >> Replace the BCM. Refer to BCS-24, "BCM".
NG >> GO TO 3.Battery voltage should exist.
WKIA2075E
Lighting switch ON (1st position) : LIGHT SW 1ST ON
Lighting switch OFF : LIGHT SW 1ST OFF
WKIA1877E
When seat belt is fastened : Warning lamp OFF
When seat belt is unfastened : Warning lamp ON