battery INFINITI QX56 2007 Factory Service Manual
[x] Cancel search | Manufacturer: INFINITI, Model Year: 2007, Model line: QX56, Model: INFINITI QX56 2007Pages: 3061, PDF Size: 64.56 MB
Page 1030 of 3061
COMBINATION METERSDI-19
< SERVICE INFORMATION >
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• Depending on vehicle position or driving circumstance, the fuel in the tank shifts and the indication may fluc-
tuate.
• If the vehicle is fueled with the ignition switch ON, the indication will update slowly.
• If the vehicle is tilted when the ignition switch is turned ON, fuel in the tank may flow to one direction result-
ing in a change of reading.
LOW-FUEL WARNING LAMP
Depending on vehicle posture or driving circumstances, the fuel level in the tank varies, and the warning lamp
ON timing may be changed.
1.CHECK SELF-DIAGNOSIS
Perform the combination meter self-diagnosis. Refer to DI-12, "
Self-Diagnosis Mode of Combination Meter".
OK or NG
OK >> GO TO 2.
NG >> Replace the combination meter. Refer to IP-10, "
Removal and Installation".
2.CHECK HARNESS CONNECTOR
1. Turn the ignition switch OFF.
2. Check combination meter and fuel level sensor unit and fuel pump terminals (meter-side, and harness-
side) for poor connection.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace terminals or connectors.
3.CHECK HARNESS CONNECTOR OUTPUT SIGNAL
1. Disconnect fuel level sensor unit and fuel pump connector.
2. Turn ignition switch ON.
3. Check voltage between combination meter harness connector M24 terminal 15 and ground.
OK or NG
OK >> GO TO 4.
NG >> Replace the combination meter. Refer to IP-10,
"Removal and Installation".
4.CHECK HARNESS FOR OPEN OR SHORT CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect combination meter connector M24.
3. Check continuity between combination meter harness connector M24 (B) terminal 15 and fuel level sensor unit and fuel pump
harness connector C5 (A) terminal 2.
4. Check continuity between fuel level sensor unit and fuel pump harness connector C5 (A) terminal 2 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5.CHECK FUEL LEVEL SENSOR CIRCUIT Battery voltage should exist.
WKIA1816E
Continuity should exist.
Continuity should not exist.
WKIA4617E
Page 1035 of 3061
DI-24
< SERVICE INFORMATION >
COMPASS AND THERMOMETER
1. Turn the ignition switch to the ON position.
2. Cool down ambient sensor 2 with water or ice.
Does the indicated temperature drop?
YES >> GO TO 2.
NO >> The system is malfunctioning. Check the system following “INSPECTION/COMPASS AND THER-
MOMETER”. Refer to "INSPECTION/COMPASS AND THERMOMETER".
2.WARM UP CHECK
1. Leave the vehicle for 10 minutes.
2. With the ignition switch in the ON position, disconnect and reconnect ambient sensor 2 connector.
Does the indicated temperature rise?
YES >> The system is OK.
NO >> The system is malfunctioning. Check the system following “INSPECTION/COMPASS AND THER-
MOMETER”. Refer to "INSPECTION/COMPASS AND THERMOMETER".
INSPECTION/COMPASS AND THERMOMETER
Calibration Procedure for CompassINFOID:0000000003533503
The difference between magnetic North and geographical North can sometimes be great enough to cause
false compass readings. In order for the compass to operate accurately in a particular zone, it must be cali-
brated using the following procedure.
Symptom Possible causes Repair order
No display at all 1. 10A fuse.
2. Ground circuit.
3. auto anti-dazzling inside mirror.1. Check 10A fuse [No. 12, located in fuse block (J/B)].
Turn the ignition switch ON and verify that battery positive
voltage is at terminal 6 of auto anti-dazzling inside mirror.
2. Check ground circuit for auto anti-dazzling inside mirror.
3. Replace auto anti-dazzling inside mirror.
Forward direction indi-
cation slips off the mark
or incorrect.1. In manual correction mode (Bar
and display vanish).
2. Zone variation change is not
done.1. Drive the vehicle and turn at an angle of 90°.
2. Perform the zone variation change.
Displays wrong temper-
ature when ambient
temperature is between
−40°C (−40°F) and
55°C (130°F)1. Check operation.
2. Ambient sensor 2 circuit.
3. Ambient sensor 2.
4. Auto anti-dazzling inside mirror.1. Perform preliminary check shown above.
2. Check harness for open or short between ambient sensor 2
and auto anti-dazzling inside mirror.
3. Replace ambient sensor 2.
4. Replace auto anti-dazzling inside mirror.
Displays SC or OC 1. Ambient sensor 2 circuit.
2. Ambient sensor 2.
3. Auto anti-dazzling inside mirror.1. Check harness for open or short between ambient sensor 2
and auto anti-dazzling inside mirror.
2. Replace ambient sensor 2.
3. Replace auto anti-dazzling inside mirror.
Page 1048 of 3061
WARNING CHIME
DI-37
< SERVICE INFORMATION >
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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.
Page 1054 of 3061
WARNING CHIME
DI-43
< SERVICE INFORMATION >
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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
LKIA0255E
Terminals Condition Continuity
34Key is inserted Yes
Key is removed No
WKIA1820E
Continuity should exist.
Continuity should not exist.
WKIA2074E
Page 1055 of 3061
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
Page 1056 of 3061
WARNING CHIME
DI-45
< SERVICE INFORMATION >
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3.CHECK COMBINATION METER INPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between combination meter harness connector
M24 terminal 27 and ground.
OK or NG
OK >> Replace the combination meter. Refer to IP-10, "Removal and Installation".
NG >> GO TO 4.
4.CHECK SEAT BELT BUCKLE SWITCH
1. Turn ignition switch OFF.
2. Disconnect seat belt buckle pre-tensioner assembly LH (seat
belt buckle switch) connector.
3. Check continuity between seat belt buckle pre-tensioner assem-
bly LH (seat belt buckle switch) terminals 3 and 4.
OK or NG
OK >> GO TO 5.
NG >> Replace the seat belt buckle pre-tensioner assembly LH (seat belt buckle switch).
5.CHECK SEAT BELT BUCKLE SWITCH CIRCUIT
1. Disconnect combination meter connector.
2. Check continuity between combination meter harness connector
M24 (B) terminal 27 and seat belt buckle pre-tensioner assem-
bly LH (seat belt buckle switch) harness connector B74 (A) ter-
minal 4.
3. Check continuity between combination meter harness connector
M24 (B) terminal 27 and ground.
OK or NG
OK >> Check seat belt buckle pre-tensioner assembly LH (seat belt buckle switch) ground circuit.
NG >> Repair harness or connector.
Te r m i n a l s
ConditionVoltage (V)
(Approx.) (+)
(–)
Connector Terminal
M24 27 GroundSeat belt is fastened Battery voltage
Seat belt is unfastened 0
WKIA1821E
Terminals Condition Continuity
34Seat belt is fastened No
Seat belt is unfastened Yes
WKIA4404E
Continuity should exist.
Continuity should not exist.
WKIA4405E
Page 1061 of 3061
DI-50
< SERVICE INFORMATION >
REAR SONAR SYSTEM
Sonar Control Unit Harness Connector Terminal Layout
INFOID:0000000003533527
Terminal and Reference Value for Sonar Control UnitINFOID:0000000003533528
WKIA5222E
Te r m i n a l
(color)ItemCondition
Reference value (V)
(Approx.) Ignition
switchOperation
3 (R) Sonar buzzer return ON — 0 - 12 (variable)
4 (BR/Y)Rear sonar system
OFF indicator outputONRear sonar system OFF
switch ON 0
OFF Battery voltage
5 (G/W) Reverse signal ONTransmission gear se-
lector leverR position Battery voltage
Transmission gear se-
lector leverNot R position 0
6 (B)Sonar control unit
ground —— 0
7 (L) Sonar buzzer drive
signalON — Battery voltage
8 (G/R)Sonar control unit
powerON — Battery voltage
9 (GR)Rear sonar sensor
signal - RH outerON• Rear sonar system OFF switch ON
• Transmission gear selector lever in R po-
sition
• No obstaclesBattery voltage
10 (P)Rear sonar sensor
signal - LH outerON• Rear sonar system OFF switch ON
• Transmission gear selector lever in R po-
sition
• No obstaclesBattery voltage
11 ( O )Rear sonar sensor
signal - LH innerON• Rear sonar system OFF switch ON
• Transmission gear selector lever in R po-
sition
• No obstaclesBattery voltage
12 (LG)Rear sonar sensor
signal - RH innerON• Rear sonar system OFF switch ON
• Transmission gear selector lever in R po-
sition
• No obstaclesBattery voltage
13 (LG)Rear sonar system
OFF switch signalONRear sonar system OFF
switchON 0
OFF Battery voltage
15 (Y)Rear sonar sensor
groundON — 0
16 (LG/B)Rear sonar sensor
powerON Ignition switch ON Battery voltage
Page 1064 of 3061
REAR SONAR SYSTEM
DI-53
< SERVICE INFORMATION >
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1. Push and hold rear sonar system OFF switch for three seconds
to reset time-out counter.
2. Push and hold rear sonar system OFF switch for three seconds
to clear codes.
Preliminary CheckINFOID:0000000003533532
INSPECTION FOR POWER SUPPLY AND GROUND CIRCUIT
1.CHECK FUSE
Check for blown rear sonar system fuse.
Refer to DI-48, "
Wiring Diagram - SONAR -".
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer to PG-3
.
2.CHECK POWER SUPPLY CIRCUIT
1. Disconnect sonar control unit connector.
2. Check voltage between sonar control unit connector B56 termi-
nal 8 and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open between sonar control unit and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between sonar control unit B56 terminal 6 and
ground.
OK or NG
OK >> Inspection End.
NG >> Check harness ground circuit.
LKIA0391E
Unit Power Source Fuse
Sonar control unit ON or START 12
Terminals Ignition switch position
(+)
(-) ON or START
Connector Terminal
B56 8 Ground Battery voltage
WKIA1145E
Te r m i n a l s
Continuity (+)
(–)
Connector Terminal
B56 6 Ground Yes
WKIA1146E
Page 1066 of 3061
REAR SONAR SYSTEM
DI-55
< SERVICE INFORMATION >
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Component InspectionINFOID:0000000003533534
SONAR BUZZER
1. Disconnect the sonar buzzer connector.
2. Check continuity between buzzer terminal (+) and terminal (-)
REAR SONAR SYSTEM OFF SWITCH
Disconnect the rear sonar system OFF switch connector M116.
Check continuity between the following terminals.
REAR SONAR SYSTEM OFF INDICATOR
Disconnect the rear sonar system OFF switch connector M116, and
apply battery voltage (approx. 12V) to switch terminal 5. Check the
rear sonar system OFF indicator operation when switch terminal 6 is
connected to battery ground.
Removal and InstallationINFOID:0000000003533535
REAR SONAR SENSORS
Refer to EI-14, "Removal and Installation" for rear sonar sensor removal and installation procedures.
SONAR CONTROL UNIT
Removal
1. Remove luggage side finisher LH. Refer to EI-39 to gain access to sonar control unit.
2. Disconnect electrical connector then remove sonar control unit. Refer to DI-46, "
Component Parts and
Harness Connector Location".
Installation
Installation is in the reverse order of removal.(+) - (-) : Continuity should exist
WKIA2024E
Rear sonar system OFF
switch Terminal to be inspected Continuity
Depressed
1 - 2Ye s
Released No
WKIA2025E
Terminal to be in-
spectedCondition Operation
Rear sonar sys-
tem OFF switch5 Approx. 12V Rear sonar
system OFF
indicator lights 6Ground
WKIA2026E
Page 1075 of 3061
DI-64
< SERVICE INFORMATION >
REAR VIEW MONITOR
Rear View Camera Control Unit Harness Connector Terminal Layout
INFOID:0000000003533542
Terminal and Reference Value for Rear View Camera Control UnitINFOID:0000000003533543
CONSULT-II Function (REARVIEW CAMERA)INFOID:0000000003533544
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
WKIA5224E
Te r m i n a l
No.Wire
colorItemCondition
Reference value (V)
(Approx.) Ignition
switchOperation
1 Y Battery power OFF — Battery voltage
2 V ACC power ACC — Battery voltage
3 B Ground ON — 0
4 G/W Reverse signal input ONA/T selector lever R position Battery voltage
A/T selector lever in other than R
position0
5BRAV Control ONA/T selector lever R position 0
—0
6G/WDDL — — —
8 Y Camera power output ON A/T selector lever R position 6
9 — Camera image input (–) ON — 0
10 G Camera image input (+) ON A/T selector lever R position
11 — Shield ground — — —
12 W Composite image output ON A/T selector lever R position
SKIA4894E
SKIA4896E