2007 INFINITI QX56 Factory Service Manual

battery flat tire wheel size radio controls service interval reset suspension

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INFINITI QX56 2007 Factory Service Manual DI-54
< SERVICE INFORMATION >
REAR SONAR SYSTEM
Symptom Chart
INFOID:0000000003533533
Symptom Repair order
When the rear sonar system OFF switch is OFF, the indicator
lamp does not light and the buzz

DI-54
< SERVICE INFORMATION >
REAR SONAR SYSTEM
Symptom Chart
INFOID:0000000003533533
Symptom Repair order
When the rear sonar system OFF switch is OFF, the indicator
lamp does not light and the buzzer does not sound.1. Check rear sonar system OFF switch for malfunction. Refer
to DI-55, "
Component Inspection".
2. Check rear sonar system OFF switch ground circuit.
3. Check harness and connections between rear sonar system
OFF switch and sonar control unit.
4. Replace sonar control unit. Refer to DI-55, "
Removal and In-
stallation".
When the rear sonar system OFF switch is OFF, the indicator
lamp does not light but buzzer sounds.1. Check rear sonar system OFF indicator for malfunction. Re-
fer to DI-55, "
Component Inspection".
2. Check harness and connections between rear sonar system
OFF indicator and sonar control unit.
3. Replace sonar control unit. Refer to DI-55, "
Removal and In-
stallation".
When the rear sonar system OFF switch is OFF, the sonar buzzer
does not sound but indicator lamp illuminates.1. Check sonar buzzer. Refer to DI-55, "
Component Inspec-
tion".
2. Check harness and connections between sonar buzzer and
sonar control unit.
3. Replace sonar control unit. Refer to: DI-55, "
Removal and
Installation".
When rear sonar system OFF switch is ON, the rear sonar system
OFF indicator lamp lights up and the sonar buzzer sounds inter-
mittently (for about 4 seconds).1. Check harness between rear sonar sensors and sonar con-
trol unit for an open condition.
2. Check rear sonar sensors for malfunction.
3. Replace sonar control unit. Refer to DI-55, "
Removal and In-
stallation".
The rear sonar system operates with the rear sonar system OFF
switch OFF.1. Check rear sonar system OFF switch for malfunction. Refer
to DI-55, "
Component Inspection".
2. Check rear sonar system OFF switch ground circuit.
3. Check harness and connections between rear sonar system
OFF switch and sonar control unit.
4. Replace sonar control unit. Refer to DI-55, "
Removal and In-
stallation".
When the transmission gear selector lever is in the R position and
the rear sonar system OFF switch is OFF, the sonar system does
not operate.1. Check for PNP switch failure. Refer to AT- 8 3 , "
CONSULT-II
Function (A/T)".
2. Check harness and connections between sonar control unit
and PNP/reverse lamp circuits.
3. Replace sonar control unit. Refer to DI-55, "
Removal and In-
stallation".
When the rear sonar system OFF switch is OFF, the indicator
lamp lights up and buzzer sounds although there is no obstacle
within the detection range.1. Check for adhesion of snow, mud, or other foreign objects to
rear sonar sensors; dew condensation; etc. Refer to DI-51,
"Pre-diagnosis Inspection".
2. Check that the rear sonar sensor is properly aligned
(bumper is not misaligned, no deformation in sensor mount-
ing area
3. Check harness and connections between rear sonar sen-
sors and sonar control unit.
4. Check rear sonar sensors for malfunction.
5. Replace sonar control unit. Refer to DI-55, "
Removal and In-
stallation".
The rear sonar sensors do not operate according to the distance
between each sensor and the obstacle. (There is a large error in
the obstacle detection distance.1. Check rear sonar sensors for malfunction.
2. Replace sonar control unit. Refer to DI-55, "
Removal and In-
stallation".
3. Check for adhesion of snow, mud, or other foreign objects to
rear sonar sensors; dew condensation; etc. Refer to DI-51,
"Pre-diagnosis Inspection".
4. Check that the rear sonar sensor is properly aligned
(bumper is not misaligned, no deformation in sensor mount-
ing area

Page 1066 of 3061

INFINITI QX56 2007 Factory Service Manual REAR SONAR SYSTEM
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< SERVICE INFORMATION >
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Component InspectionINFOID:0000000003533534
SONAR BUZZER
1. Disconnect the sonar buzzer connector.
2. Check continuity b

Page 1067 of 3061

INFINITI QX56 2007 Factory Service Manual DI-56
< SERVICE INFORMATION >
CLOCK
CLOCK
Wiring Diagram - CLOCK -INFOID:0000000003533536
Removal and Installation of ClockINFOID:0000000003533537
REMOVAL
WKWA1178E

Page 1068 of 3061

INFINITI QX56 2007 Factory Service Manual CLOCK
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< SERVICE INFORMATION >
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1. Remove cluster lid C. Refer to IP-10 .
2. Remove screws (3) and remove clock from cluster lid C.
INSTALLATION
Installation is in

Page 1069 of 3061

INFINITI QX56 2007 Factory Service Manual DI-58
< SERVICE INFORMATION >
REAR VIEW MONITOR
REAR VIEW MONITOR
Component Parts and Harness Connector LocationINFOID:0000000003533538
System DescriptionINFOID:0000000003533539
• When the A/T selec

Page 1070 of 3061

INFINITI QX56 2007 Factory Service Manual REAR VIEW MONITOR
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< SERVICE INFORMATION >
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• to rear view camera control unit terminal 1.
When ignition switch is in ACC or ON position, power is supplied
• th

REAR VIEW MONITOR
DI-59
< SERVICE INFORMATION >
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• to rear view camera control unit terminal 1.
When ignition switch is in ACC or ON position, power is supplied
• through 10A fuse [No. 4, located in the fuse block (J/B)]
• to rear view camera control unit terminal 2.
Ground is supplied
• to rear view camera control unit terminal 3 and
• to rear view camera terminal 2
• through grounds B7 and B19.
AV COMMUNICATION LINE
Rear view camera control unit is connected to the following units with AV communication line. Each unit trans-
mits/receives data with AV communication line.
• NAVI control unit
• Display unit
• Display control unit
• AV switch
REAR VIEW CAMERA OPERATION
When ignition switch is in ON or START position, power is supplied
• through 10A fuse (No. 51, located in the IPDM E/R)
• to back-up lamp relay terminals 1 and 3.
When A/T selector lever is in reverse position, power is supplied
• through back-up lamp relay terminal 2
• to TCM terminal 7.
Then, when back-up lamp relay is energized,
• from back-up lamp relay terminal 5
• to rear view camera control unit terminal 4.
Then, rear view camera control unit is sent camera ON signal
• through rear view camera control unit terminal 8
• to rear view camera terminal 1.
An image taken by rear view camera is sent
• through rear view camera terminals 3 and 4
• to rear view camera control unit terminals 10 and 9.
Then an image is sent
• through rear view camera control unit terminals 11 and 12
• to display unit terminals 4 and 15.
An image of rear view will be projected on the display.
Side Distance Guideline
When A/T selector lever is in reverse position, rear view camera control unit is sent rear view camera guideline
image
• through rear view camera control unit terminals 11 and 12
• to display unit terminals 4 and 15.
Rear view camera guideline will be projected on the display.
Display shows image from rear view camera image and rear view camera guideline.

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INFINITI QX56 2007 Factory Service Manual DI-60
< SERVICE INFORMATION >
REAR VIEW MONITOR
Schematic
INFOID:0000000003533540
WKWA1179E

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INFINITI QX56 2007 Factory Service Manual REAR VIEW MONITOR
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Wiring Diagram - R/VIEW -INFOID:0000000003533541
WKWA1180E

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