air condition INFINITI QX56 2008 Factory Workshop Manual

AV
FRONT DOOR SPEAKERAV-81
< COMPONENT DIAGNOSIS > [AUDIO SYSTEM]
C
D
E
F
G H
I
J
K L
M B A
O P
1. Connect BOSE speaker amp. connector M112 and suspect speaker connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between BOSE speaker amp. harness connec- tor M112 terminals with CONSULT-III or oscilloscope.
Is audio signal voltage as specified?
YES >> Replace suspect speaker. Refer to AV-169, "Removal
and Installation".
NO >> GO TO 3
3.HARNESS CHECK
1. Disconnect AV control unit connector M42 and BOSE speaker
amp. connector M113.
2. Check continuity between AV control unit harness connector
M42 (A) and BOSE speaker amp. harness connector M113 (B).
3. Check continuity between AV control unit harness connector M42 (A) and ground.
Are continuity test results as specified?
YES >> GO TO 4
NO >> • Check connector housings for disconnected or loose terminals. • Repair harness or connector.
4.FRONT SPEAKER SIGNAL CHECK
Connec-
tor Te r m i n a l
Condition Reference
signal
(+) (-)
M112 45
Receive
audio sig-
nal
813
ALNIA0343GB
SKIA0177E
AB
Continuity
Connector Terminal Connector Terminal
M42 2
M113 18
Ye s
33
2
11 1 9
12 20
A —Con tin uit y
Connector Terminal
M42 2
Ground No
3
11
12
ALNIA0416GB
Revision: March 2010 2008 QX56

AV-84
< COMPONENT DIAGNOSIS >[AUDIO SYSTEM]
FRONT TWEETER
1. Connect BOSE speaker amp. connector M112 and suspect
tweeter connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between BOSE speaker amp. harness connec- tor M112 terminals with CONS ULT-III or oscilloscope.
Is audio signal voltage as specified?
YES >> Replace suspect tweeter. Refer to AV-167, "Removal
and Installation".
NO >> GO TO 3
3.HARNESS CHECK
1. Disconnect AV control unit connector M42 and BOSE speaker amp. connector M113.
2. Check continuity between AV control unit harness connector
M42 (A) and BOSE speaker amp. harness connector M113 (B).
3. Check continuity between AV control unit harness connector M42 (A) and ground.
Are continuity test results as specified?
YES >> GO TO 4
NO >> • Check connector housings for disconnected or loose terminals. • Repair harness or connector.
4.FRONT SPEAKER SIGNAL CHECK
Connec-
tor Te r m i n a l
Condition Reference
signal
(+) (-)
M112 45
Receive
audio sig-
nal
813
ALNIA0343GB
SKIA0177E
AB
Continuity
Connector Terminal Connector Terminal
M42 2
M113 18
Ye s
33
2
11 1 9
12 20
A —Contin u it y
Connector Terminal
M42 2
Ground No
3
11
12
ALNIA0416GB
Revision: March 2010 2008 QX56

AV-86
< COMPONENT DIAGNOSIS >[AUDIO SYSTEM]
CENTER SPEAKER
CENTER SPEAKER
DescriptionINFOID:0000000001696125
The AV control unit sends audio signals to the BOSE s
peaker amp. The BOSE speaker amp. amplifies the
audio signals before sending them to the center speaker using the audio signal circuits.
Diagnosis ProcedureINFOID:0000000001696126
1.HARNESS CHECK
1. Disconnect BOSE speaker amp. connector M113 and center speaker connector M110.
2. Check continuity between BOSE speaker amp. harness connec- tor M113 (A) and center speaker harness connector M110 (B).
3. Check continuity between BOSE speaker amp. harness connec- tor M113 (A) and ground.
Are continuity test results as specified?
YES >> GO TO 2
NO >> • Check connector housings for disconnected or loose terminals. • Repair harness or connector.
2.CENTER SPEAKER SIGNAL CHECK
1. Connect BOSE speaker amp. connector M113 and center speaker connector M110.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between BOSE speaker amp. harness connec-
tor M113 terminals with CONS ULT-III or oscilloscope.
Is the audio signal voltage reading as specified?
YES >> Replace center speaker. Refer to AV-168, "Removal and Installation".
NO >> GO TO 3
3.HARNESS CHECK
A B Continuity
Connector Terminal Connector Terminal
M113 15
M110 1
Ye s
28 2
A —Con tin uit y
Connector Terminal
M113 15
Ground No
28
ALNIA0349GB
Connector Te r m i n a l s
Condition Reference
signal
(+) (-)
M113 15 28 Receive
audio sig-
nal
ALNIA0842GB
SKIA0177E
Revision: March 2010
2008 QX56

AV
CENTER SPEAKERAV-87
< COMPONENT DIAGNOSIS > [AUDIO SYSTEM]
C
D
E
F
G H
I
J
K L
M B A
O P
1. Disconnect AV control unit connector M42 and BOSE speaker
amp. connector M113.
2. Check continuity between AV control unit harness connector
M42 (A) and BOSE speaker amp. harness connector M113 (B).
3. Check continuity between AV control unit harness connector M42 (A) and ground.
Are continuity test results as specified?
YES >> GO TO 4
NO >> • Check connector housings for disconnected or loose terminals. • Repair harness or connector.
4.FRONT SPEAKER SIGNAL CHECK
1. Connect AV control unit connector and BOSE speaker amp. connector.
2. Turn ignition switch ACC.
3. Push “POWER” switch.
4. Check the signal between AV control unit harness connector M42 terminals with CONSULT-III or oscilloscope.
Are the audio signal voltage readings as specified?
YES >> Replace BOSE speak er amp. Refer to AV-177,
"Removal and Installation".
NO >> Replace AV control unit. Refer to AV-164, "
Removal and
Installation".
AB
Continuity
Connector Terminal Connector Terminal
M42 2
M113 18
Ye s
33
2
11 1 9
12 20
A —Con tin uit y
Connector Terminal
M42 2
Ground No
3
11
12
ALNIA0416GB
Connector Te r m i n a l s
Condition Reference
signal
(+) (-)
M42 23
Receive
audio sig-
nal
11 1 2
ALNIA0417GB
SKIA0177E
Revision: March 2010
2008 QX56

AV
REAR DOOR SPEAKERAV-89
< COMPONENT DIAGNOSIS > [AUDIO SYSTEM]
C
D
E
F
G H
I
J
K L
M B A
O P
1. Connect BOSE speaker amp. connectors and suspect speaker
connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between BOSE speaker amp. harness connec- tors M112 terminals with CONSULT-III or oscilloscope.
Are audio signal voltage readings as specified?
YES >> Replace suspect speaker. Refer to AV-170, "Removal
and Installation".
NO >> GO TO 3
3.HARNESS CHECK
1. Disconnect AV control unit connector M42 and BOSE speaker
amp. connector M113.
2. Check continuity between AV control unit harness connector
M42 (A) and BOSE speaker amp. harness connector M113 (B).
3. Check continuity between AV control unit harness connector M42 (A) and ground.
Are the continuity test results as specified?
YES >> GO TO 4
NO >> • Check connector housings for disconnected or loose terminals. • Repair harness or connector.
4.REAR DOOR SPEAKER SIGNAL CHECK
Connector Te r m i n a l s
Condition Reference
signal
(+) (-)
M112 110
Receive
audio sig-
nal
23
ALNIA0843GB
SKIA0177E
AB

Continuity
Connector Terminal Connector Terminal
M42 4
M113 21
Ye s
52
2
13 23
14 33
A —Con tin uit y
Connector Terminal
M42 4
Ground No
5
13
14
ALNIA0418GB
Revision: March 2010 2008 QX56

AV-92
< COMPONENT DIAGNOSIS >[AUDIO SYSTEM]
REAR DOOR TWEETER
1. Connect BOSE speaker amp. connectors and suspect tweeter
connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between BOSE speaker amp. harness connec- tors M112 terminals with CONSULT-III or oscilloscope.
Are audio signal voltage readings as specified?
YES >> Replace suspect tweeter. Refer to AV-167, "Removal
and Installation".
NO >> GO TO 3
3.HARNESS CHECK
1. Disconnect AV control unit connector M42 and BOSE speaker amp. connector M113.
2. Check continuity between AV control unit harness connector
M42 (A) and BOSE speaker amp. harness connector M113 (B).
3. Check continuity between AV control unit harness connector M42 (A) and ground.
Are the continuity test results as specified?
YES >> GO TO 4
NO >> • Check connector housings for disconnected or loose terminals. • Repair harness or connector.
4.REAR DOOR SPEAKER SIGNAL CHECK
Connector Te r m i n a l s
Condition Reference
signal
(+) (-)
M112 110
Receive
audio sig-
nal
23
ALNIA0843GB
SKIA0177E
AB

Continuity
Connector Terminal Connector Terminal
M42 4
M113 21
Ye s
52
2
13 23
14 33
A —Contin u it y
Connector Terminal
M42 4
Ground No
5
13
14
ALNIA0418GB
Revision: March 2010 2008 QX56

AV
BACK DOOR SPEAKERAV-95
< COMPONENT DIAGNOSIS > [AUDIO SYSTEM]
C
D
E
F
G H
I
J
K L
M B A
O P
1. Connect BOSE speaker amp. connectors and suspect speaker
connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between BOSE speaker amp. harness connec- tors M113 terminals with CONSULT-III or oscilloscope.
Are audio signal voltage readings as specified?
YES >> Replace suspect speaker. Refer to AV-171, "Removal
and Installation".
NO >> GO TO 3
3.HARNESS CHECK
1. Disconnect AV control unit connector M42 and BOSE speaker
amp. connector M113.
2. Check continuity between AV control unit harness connector
M42 (A) and BOSE speaker amp. harness connector M113 (B).
3. Check continuity between AV control unit harness connector M42 (A) and ground.
Are the continuity test results as specified?
YES >> GO TO 4
NO >> • Check connector housings for disconnected or loose terminals. • Repair harness or connector.
4.REAR DOOR SPEAKER SIGNAL CHECK
Connector Te r m i n a l s
Condition Reference
signal
(+) (-)
M112 6 7
Receive
audio sig-
nal
M113 37 27
ALNIA0664GB
SKIA0177E
AB

Continuity
Connector Terminal Connector Terminal
M42 4
M113 21
Ye s
52
2
13 23
14 33
A —Con tin uit y
Connector Terminal
M42 4
Ground No
5
13
14
ALNIA0418GB
Revision: March 2010 2008 QX56

AV-98
< COMPONENT DIAGNOSIS >[AUDIO SYSTEM]
SUBWOOFER
4.SUBWOOFER AUDIO SIGNAL CHECK
1. Connect BOSE speaker amp. connec tor M112 and subwoofer connector B72.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between BOSE speaker amp. harness connec- tor M112 terminals with CONS ULT-III or oscilloscope.
Is the audio signal voltage as specified?
YES >> Replace subwoofer. Refer to AV-172, "Removal and Installation".
NO >> GO TO 5
5.HARNESS CHECK
1. Disconnect AV control unit connector M42 and BOSE speaker amp. connector M113.
2. Check continuity between AV control unit harness connector M42 (A) and BOSE speaker amp. harness connector M113 (B).
3. Check continuity between AV control unit harness connector M42 (A) and ground.
Are the continuity test results as specified?
YES >> GO TO 6
NO >> • Check connector housings for disconnected or loose terminals. • Repair harness or connector.
6.REAR DOOR SPEAKER SIGNAL CHECK
Connector Te r m i n a l s
Condition Reference
signal
(+) (-)
M112 9 14 Receive au-
dio signal
ALNIA0366GB
SKIA0177E
AB

Continuity
Connector Terminal Connector Terminal
M42 4
M113 21
Ye s
52
2
13 23
14 33
A —Contin u it y
Connector Terminal
M42 4
Ground No
5
13
14
ALNIA0418GB
Revision: March 2010 2008 QX56

AV
STEERING SWITCHAV-101
< COMPONENT DIAGNOSIS > [AUDIO SYSTEM]
C
D
E
F
G H
I
J
K L
M B A
O P
STEERING SWITCH
DescriptionINFOID:0000000001696137
When one of the steering wheel audio control switches is pushed, the resistance in the steering wheel audio
control switch circuit changes depending on which button is pushed.
Diagnosis ProcedureINFOID:0000000001696138
1.CHECK STEERING WHEEL AUDI O CONTROL SWITCH RESISTANCE
1. Turn ignition switch OFF.
2. Disconnect steering wheel audio control switch connector M102.
3. Check resistance between steering switch connector terminals.
Do the steering wheel audio control switches check OK?
YES >> GO TO 2
NO >> Replace steering wheel audio control switch. Refer to AV-174, "
Removal and Installation".
2.CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector M42 and spiral cable con- nector M30.
3. Check continuity between AV control unit harness connector M42 (A) and spiral cable harness connector M30 (B).
4. Check continuity between AV control unit connector M42 (A) and ground.
Are the continuity results as specified?
YES >> GO TO 3
NO >> Repair harness.
Terminal Signal name Condition Resistance
(Ω )
(Approx.)
16 17 Seek (down)
Depress switch. 165
Volume (down) Depress VOL down switch. 652
Phone/End Depress switch. 0
20 17 Seek (up)
Depress switch. 165
Volume (up) Depress VOL up switch. 652
Phone/Send Depress switch. 0
WKIA4457E
AB
Continuity
Connector Terminal Connector Terminal
M42 6
M30 24
Ye s
15 31
16 32
A —Continuity
Connector Terminal
M42 6
Ground No
15
16
ALNIA0332GB

AV-158
< SYMPTOM DIAGNOSIS >[AUDIO SYSTEM]
NORMAL OPERATING CONDITION
PlaceIn a parking lot
When driving in a parking lot, or other loca-
tion where there are no roads on the map,
matching may place the vehicle mark on a
nearby road. When the vehicle returns to
the road, the vehicle mark may have devi-
ated from the correct location.
When driving in circle or turning the steer-
ing wheel repeatedly, direction errors accu-
mulate, and the vehicle mark may deviate
from the correct location.
If after travelling about 10 km (6
miles) the correct location has
not been restored, perform lo-
cation correction and, if neces-
sary, direction correction.
Turntable
When the ignition switch is OFF, the navi-
gation system cannot get the signal from
the gyroscope (angular speed sensor).
Therefore, the displayed direction may be
wrong and the correct road may not be eas-
ily returned to after rotating the vehicle on a
turntable with the ignition OFF.
Slippery roads On snow, wet roads, gravel, or other roads
where tires may slip easily, accumulated
mileage errors may cause the vehicle mark
to deviate from the correct road.
Slopes When parking in sloped garages, when
travelling on banked roads, or in other cas-
es where the vehicle turns when tilted, an
error in the turning angle will occur, and the
vehicle mark may deviate from the road.
Map data Road not displayed on the map screen
When driving on new roads or other roads
not displayed on the map screen, map
matching does not function correctly and
matches the location to a nearby road.
When the vehicle returns to a road which is
on the map, the vehicle mark may deviate
from the correct road.
Different road pattern
(Changed due to repair) If the road pattern stored in the map data
and the actual road pattern are different,
map matching does not function correctly
and matches the location to a nearby road.
The vehicle mark may deviate from the cor-
rect road.
Vehicle Use of tire chains When tire chains are used, the mileage is
not correctly detected, and the vehicle mark
may deviate from the correct road.Drive the vehicle for a while. If
the distance still deviates, ad-
just it by using the distance ad-
justment function. (If the tire
chain is removed, recover the
original value.)
Cause (condition) –: While driving ooo: Display
Driving conditionRemarks (correction, etc.)
SEL709V
SEL710V
SEL699V
ELK0201D
Revision: March 2010 2008 QX56