Ins INFINITI QX56 2004 Factory Service Manual

AUDIO
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Revision: August 20072004 QX56
4. REAR SPEAKER SIGNAL CHECK
1. Connect audio unit connector M44 and BOSE speaker amp. connector M113.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal at audio unit harness connector M44 terminal
with CONSULT-II or oscilloscope.
OK or NG
OK >> Replace BOSE speaker amp. Refer to AV- 4 6 , "Removal
and Installation of BOSE Speaker Amp." .
NG >> Replace audio unit. Refer to AV- 4 5 , "
Removal and
Installation for Audio Unit" .
Sound Is Not Heard From Center SpeakerEKS007KT
1. HARNESS CHECK
1. Disconnect BOSE speaker amp. connector M112 and center speaker connector M110.
2. Check continuity between BOSE speaker amp. harness connec-
tor terminal M112 center speaker harness connector terminal
M110.
3. Check continuity between BOSE speaker amp. harness connec-
tor M112 terminal and ground.
OK or NG
OK >> GO TO 2.
NG >>

Check connector housings for disconnected or loose terminals.

Repair harness or connector.
Te r m i n a l s
Condi-
tionReference
signal (+) (-)
Con-
nectorTe r m i -
nal
(Wire
color)Con-
nectorTe r m i n a l
(Wire
color)
M4414
(BR)
M4413 (B/R)
Receive
audio
signal
16 (L) 15 (B/W)
SKIA4316E
SKIA0177E
Te r m i n a l s
Continuity BOSE speaker amp. Center speaker
ConnectorTe r m i n a l
(Wire color)ConnectorTe r m i n a l
(Wire color)
M1122 (R)
M110- (R)
Ye s
18 (V) + (V)
Te r m i n a l s
Continuity BOSE speaker amp.
—
Connector Terminal (Wire color)
M1122 (R)
Ground No
18 (V)
WKIA1222E

AV-42
AUDIO
Revision: August 20072004 QX56
2. CENTER SPEAKER SIGNAL CHECK
1. Connect BOSE speaker amp. connector M112 and center speaker connector M110.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal BOSE speaker amp. harness connector M112
terminal with CONSULT-II or oscilloscope.
OK or NG
OK >> Replace center speaker. Refer to AV- 4 6 , "Removal and Installation of Center Speaker" .
NG >> Replace BOSE speaker amp. Refer to AV-46, "
Removal and Installation of BOSE Speaker Amp."
.
Sound Is Not Heard From SubwooferEKS007KU
1. CHECK FUSE

Check that the following fuse is not blown.
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-4,
"POWER SUPPLY ROUTING CIRCUIT" .
2. POWER SUPPLY CIRCUIT CHECK
1. Disconnect subwoofer connector.
2. Check voltage between the subwoofer and ground.
OK or NG
OK >> GO TO 3.
NG >>

Check connector housings for disconnected or loose
terminals.

Repair harness or connector.
Te r m i n a l s
Condi-
tionReference
signal (+) (-)
Con-
nec-
torTe r m i n a l
(Wire
color)Con-
nec-
torTerminal
(Wire
color)
M112 18 (V) M112 2 (R)Receive
audio
signal
WKIA1223E
SKIA0177E
Unit Terminal Signal name Fuse No.
Subwoofer 6 Battery power 17
UnitTe r m i n a l N o .
OFF ACC ON (+)
(-)
ConnectorTe r m i n a l
(wire color)
Sub-
wooferB72 6 (R) GroundBattery
voltageBattery
voltageBattery
voltage
WKIA1601E

AV-44
AUDIO
Revision: August 20072004 QX56
6. SUBWOOFER SIGNAL CHECK
1. Connect BOSE speaker amp. connector and subwoofer connector.
2. Turn ignition switch to ACC.
3. Check the signal BOSE speaker amp. harness connector termi-
nal with CONSULT-II or oscilloscope.
OK or NG
OK >> Replace subwoofer. Refer to AV- 4 6 , "Removal and Installation of Subwoofer" .
NG >> Replace BOSE speaker amp. Refer to AV-46, "
Removal and Installation of BOSE Speaker Amp."
.
Te r m i n a l s
Condi-
tionReference
signal (+) (-)
Con-
nec-
torTe r -
minal
(Wire
color)Con-
nec-
torTe r -
minal
(Wire
color)
M11219
(W)M112 3 (B)Receive
audio
signal
WKIA1170E
SKIA0177E

AUDIO
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Removal and Installation for Audio UnitEKS007KV
1. Remove cluster lid C. Refer to IP-12, "Cluster Lid C" .
2. Disconnect the negative battery cable.
3. Using power tool, remove the four audio unit screws.
4. Pull out audio unit and disconnect connectors.
5. Installation is in the reverse order of removal.
Removal and Installation for AV SwitchEKS007KW
1. Remove cluster lid C. Refer to IP-12, "Cluster Lid C" .
2. Remove the four AV switch screws.
3. Carefully remove the AV switch.
4. Installation is in the reverse order of removal.
Removal and Installation of Front Door SpeakerEKS007KX
1. Remove door finisher. Refer to EI-31, "DOOR FINISHER" .
2. Remove the four front door speaker screws.
3. Disconnect connector and remove the speaker.
4. Installation is in the reverse order of removal.
Removal and Installation of Rear Door SpeakerEKS007KY
1. Remove door finisher. Refer to EI-31, "DOOR FINISHER" .
2. Remove the three rear speaker screws and remove speaker.
3. Disconnect connector.
4. Installation is in the reverse order of removal.
WKIA1490E
WKIA1798E
Front door speaker
screws: 3.5 N·m (0.36 kg-m, 31 in-lb)
WKIA1498E
Rear speaker screws : 3.5 N·m (0.36 kg-m, 31 in-lb)
WKIA1492E

AV-46
AUDIO
Revision: August 20072004 QX56
Removal and Installation of Front TweeterEKS007KZ
1. Remove tweeter grille. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. Remove tweeter fasteners.
3. Disconnect connector and remove tweeter.
4. Installation is in the reverse order of removal.
Removal and Installation of Rear Door TweeterEKS007L0
1. Remove door finisher. Refer to EI-31, "DOOR FINISHER" .
2. Remove screws and remove tweeter.
3. Installation is in the reverse order of removal.
Removal and Installation of Center SpeakerEKS007L1
1. Remove cluster lid D. Refer to IP-12, "Cluster Lid D" .
2. Remove the screws and remove the center speaker.
3. Installation is in the reverse order of removal.
Removal and Installation of SubwooferEKS007L2
1. Remove front seat LH. Refer to SE-96, "Components" .
2. Remove the subwoofer bolts.
3. Disconnect the connector and remove the subwoofer.
4. Installation is in the reverse order of removal.
Removal and Installation of BOSE Speaker Amp.EKS007L3
1. Remove BCM. Refer to BCS-19, "Removal and Installation of BCM" .
WKIA1494E
WKIA1799E
Subwoofer mounting
bolts: 3.5 N·m (0.36 kg-m, 31 in-lb)
WKIA1496E

AUDIO
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Revision: August 20072004 QX56
2. Remove BOSE speaker amp. bracket screws and slide BOSE
speaker amp. down.
3. Disconnect connectors and remove BOSE speaker amp.
4. Installation is in the reverse order of removal.
Removal and Installation of Rear Audio Remote Control UnitEKS007L4
1. Carefully remove the rear audio remote control unit from the rear
roof console assembly.
CAUTION:
Wrap removal tool with clean shop cloth to prevent damage
to the headliner.
2. Disconnect connector and remove the rear audio control unit.
3. Installation is in the reverse order of removal.
Removal and Installation of Steering Wheel Audio Control SwitchesEKS007L5
1. Remove steering wheel. Refer to PS-8, "Removal and Installation" .
2. Remove steering wheel rear cover screws and remove steering wheel rear cover.
3. Remove steering wheel switch assembly screws and steering
wheel switches.
4. Installation is in the reverse order of removal.BOSE speaker amp.
mounting screws: 3.5 N·m (0.36 kg-m, 31 in-lb)
WKIA1605E
WKIA1201E
WKIA1226E

AV-50
AUDIO ANTENNA
Revision: August 20072004 QX56
Location of AntennaEKS007L8
Window Antenna RepairEKS007L9
ELEMENT CHECK
1. Attach probe circuit tester (ohm setting) to antenna terminal on
each side.

When measuring continuity, wrap tin foil around the top of
probe. Then, press the foil against the wire with your finger.
WKIA1800E
SEL250I
SEL122R

DVD ENTERTAINMENT SYSTEM
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System DescriptionEKS007LB
Refer to Owner's Manual for DVD entertainment system operating instructions.
Power is supplied at all times

through 20A fuse (No. 31, located in the fuse and fusible link box)

to DVD player terminal 16.
With the ignition switch in the ACC or ON position, power is supplied

through 10A fuse [No. 4, located in the fuse block (J/B)]

to DVD player terminal 15.
Power is also supplied

from DVD player terminals 31 and 32

to video monitor terminals 11 and 12.
Ground is supplied

to DVD player terminal 22

through body grounds M57, M61 and M79.
Audio signals are supplied

through DVD player terminals 1, 2, 3 and 4

to audio unit terminals 34, 35, 36 and 37.
Video signals are supplied

through DVD player terminals 23, 24, 28 and 29

to video monitor terminals 5, 6, 7 and 8.

AV-58
DVD ENTERTAINMENT SYSTEM
Revision: August 20072004 QX56
Trouble DiagnosisEKS007LE
Symptom Possible causes Repair order
DVD player inoperative1. Power supply
2. Ground circuit
3. Audio enable circuit
4. DVD enable signal
5. Audio enable signal
6. DVD player
7. Audio unit1. Refer to AV- 5 9 , "
Power Supply Circuit Inspection" .
2. Refer to AV- 5 9 , "
Power Supply Circuit Inspection" .
3. Check audio enable circuits for open or short between
audio unit terminals 39, 40 and DVD player terminals
11 , 9 .
4. Push power switch of DVD player and verify approx.
5V is present at terminal 39 of audio unit.
5. Push power switch of DVD player and verify approx.
5V is present at terminal 9 of DVD player.
6. Remove DVD player for repair.
7. Remove audio unit for repair.
No sound when playing
DVD1. Audio signal circuits
2. DVD player
3. Audio unit1. Check audio signal circuits for open or short between
DVD player terminals 1, 2, 3 and 4 and audio unit ter-
minals 34, 35, 36 and 37.
2. Remove DVD player for repair.
3. Remove audio unit for repair.
Video monitor is inopera-
tive/does not operate prop-
erly1. Power supply
2. Video monitor ground circuit
3. Video circuits
4. Data signal
5. Video monitor
6. DVD player1. Operate DVD player and verify battery positive voltage
is present at terminals 11 and 12 of video monitor. Ver-
ify approximately 5 volts is present at terminal 10 of
video monitor.
2. Check video monitor ground circuits between DVD
player terminals 19 and 27 and video monitor terminals
1 and 2.
3. Check video circuits between DVD player terminals 23
and 24 and video monitor terminals 7 and 8.
4. Check data signal circuit for open or short between
DVD player terminal 29 and video monitor terminal 5.
5. Remove video monitor for repair.
6. Remove DVD player for repair.
DVD remote control is
inoperative/does not oper-
ate properly1. Data signal
2. DVD player remote control batteries
3. DVD player remote control
4. Video monitor1. Check data signal circuit for open or short between
DVD player terminal 28 and video monitor terminal 6.
2. Replace DVD player remote control batteries.
3. Replace DVD player remote control.
4. Remove video monitor for repair.
Headphones inoperative 1. Headphone batteries
2. Headphones
3. Rear audio remote control unit1. Replace headphone batteries.
2. Replace headphones.
3. Replace rear audio remote control unit.
Snowy video/poor audio 1. Harness or connectors
2. DVD player1. Check harness and connectors for open or short.
2. Check DVD player.
Snowy video (audio OK) 1. Harness or connectors
2. DVD player1. Check harness and connectors for open or short.
2. Check DVD player.
No video (audio OK) 1. Harness or connectors
2. DVD player
3. Video monitor1. Check harness and connectors for open or short.
2. Check DVD player.
3. Check video monitor.
Dim video (audio OK) 1. Harness or connectors
2. DVD player
3. Video monitor1. Check harness and connectors for open or short.
2. Check DVD player.
3. Check video monitor.

DVD ENTERTAINMENT SYSTEM
AV-59
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Revision: August 20072004 QX56
Power Supply Circuit InspectionEKS007LF
1. CHECK FUSES

Check that the following fuses are not blown.
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-4,
"POWER SUPPLY ROUTING CIRCUIT" .
2. POWER SUPPLY CIRCUIT CHECK
1. Disconnect DVD player connector.
2. Check voltage between the DVD player and ground.
OK or NG
OK >> GO TO 3.
NG >>

Check connector housings for disconnected or loose terminals.

Repair harness or connector.
3. GROUND CIRCUIT CHECK
Check continuity between DVD player harness connector P105 ter-
minal 22 (B) and ground.
OK or NG
OK >> Inspection End.
NG >>

Check connector housings for disconnected or loose
terminals.

Repair harness or connector.
Removal and Installation of DVD PlayerEKS007LG
1. Remove center console compartment. Refer to IP-15, "Center Console" .
Unit Terminals Signal name Fuse No.
DVD player16 Battery power 31
15 Ignition switch ACC or ON 4
UnitTe r m i n a l N o .
OFF ACC ON (+)
(-)
ConnectorTe r m i n a l
(wire color)
DVD player M20516 (Y) GroundBattery
voltageBattery
voltageBattery
voltage
15 (V) Ground 0 VBattery
voltageBattery
voltage
WKIA1197E
Continuity should exist.
WKIA1198E