turn signal INFINITI QX56 2011 Factory Repair Manual
[x] Cancel search | Manufacturer: INFINITI, Model Year: 2011, Model line: QX56, Model: INFINITI QX56 2011Pages: 5598, PDF Size: 94.53 MB
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AV
COMPOSITE IMAGE SIGNAL CIRCUIT (AV CONTROL UNIT TO FRONT DIS-
PLAY UNIT)
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COMPOSITE IMAGE SIGNAL CIRCUI T (AV CONTROL UNIT TO FRONT
DISPLAY UNIT)
DescriptionINFOID:0000000006216328
DVD is played by inserting DVD into the AV control unit.
DVD image signals are transmitted to the front display unit and video distributor.
AV control unit receives the image signal from the front auxiliary input jacks and then transmits it to the front
display unit.
AV control unit receives the image signal from the USB (video data) and then transmits it to the front display
unit and video distributor.
Video distributor receives the image signal from the AV control unit and then transmits it to the headrest dis-
play unit.
Diagnosis ProcedureINFOID:0000000006216329
1.CHECK CONTINUITY COMPOS ITE IMAGE SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector and front display unit connector.
3. Check continuity between AV control unit harness connector and front display unit harness connector.
4. Check continuity between AV control unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair harness or connector.
2.CHECK COMPOSITE IMAGE SIGNAL
1. Connect AV control unit connector and front display unit connector.
2. Turn ignition switch ON.
3. Check signal between AV control unit harness connector and ground.
Is the inspection result normal?
YES >> Replace front display unit. Refer to AV-213, "Removal and Installation".
NO >> Replace AV control unit. Refer to AV-212, "
Removal and Installation".
AV control unit Front display unit
Continuity
Connector Terminal Connector Terminal
M210 68 M215 18 Existed
AV control unit GroundContinuity
Connector Terminal
M210 68 Not existed
(+) (− ) Condition Reference value
AV control unit
Connector Terminal
M210 68 Ground At DVD image is displayed.
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Revision: 2010 May2011 QX56
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AV-168
< DTC/CIRCUIT DIAGNOSIS >
COMPOSITE IMAGE SIGNAL CIRCUIT (AV CONTROL UNIT TO VIDEO DISTRIB-
UTOR)
COMPOSITE IMAGE SIGNAL CIRCUI T (AV CONTROL UNIT TO VIDEO
DISTRIBUTOR)
DescriptionINFOID:0000000006216330
DVD is played by inserting DVD into the AV control unit.
DVD image signals are transmitted to the front display unit and video distributor.
AV control unit receives the image signal from the front auxiliary input jacks and then transmits it to the front
display unit.
AV control unit receives the image signal from the USB (video data) and then transmits it to the front display
unit and video distributor.
Video distributor receives the image signal from the AV control unit and then transmits it to the headrest dis-
play unit.
Diagnosis ProcedureINFOID:0000000006216331
1.CHECK CONTINUITY COMPOS ITE IMAGE SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector and video distributor connector.
3. Check continuity between AV control unit har ness connector and video distributor harness connector.
4. Check continuity between video distributor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair harness or connector.
2.CHECK COMPOSITE IMAGE SIGNAL
1. Connect AV control unit connector and video distributor connector.
2. Turn ignition switch ON.
3. Check signal between video distributor harness connector and ground.
Is the inspection result normal?
YES >> Replace video distributor. Refer to AV-215, "Removal and Installation".
NO >> Replace AV control unit. Refer to AV-212, "
Removal and Installation".
AV control unit Video distributor
Continuity
Connector Terminal Connector Terminal
M209 34 M218 34 Existed
Video distributor GroundContinuity
Connector Terminal
M218 34 Not existed
(+) (− ) Condition Reference value
Video distributor
Connector Terminal
M218 34 Ground When DVD, USB or front AUX im-
age is displayed on headrest dis-
play unit LH or RH.
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AV
COMPOSITE IMAGE SIGNAL CIRCUIT (VIDEO DISTRIBUTOR TO HEADREST
DISPLAY UNIT)
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COMPOSITE IMAGE SIGNAL CIRCUIT (VIDEO DISTRIBUTOR TO HEAD-
REST DISPLAY UNIT)
DescriptionINFOID:0000000006216332
DVD is played by inserting DVD into the AV control unit.
DVD image signals are transmitted to the front display unit and video distributor.
AV control unit receives the image signal from the front auxiliary input jacks and then transmits it to the front
display unit.
AV control unit receives the image signal from the USB (video data) and then transmits it to the front display
unit and video distributor.
Video distributor receives the image signal from the AV control unit and then transmits it to the headrest dis-
play unit.
Diagnosis ProcedureINFOID:0000000006216333
1.CHECK CONTINUITY COMPOS ITE IMAGE SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect video distributor connecto r and headrest display unit connector.
3. Check continuity between video distributor harne ss connector and headrest display unit harness connec-
tor.
*1: Headrest display unit LH
*2: Headrest display unit RH
4. Check continuity between headrest display unit harness connector and ground.
*1: Headrest display unit LH
*2: Headrest display unit RH
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair harness or connector.
2.CHECK COMPOSITE IMAGE SIGNAL
1. Connect video distributor connector and rear display unit connector.
2. Turn ignition switch ON.
3. Check signal between rear display unit harness connector using an oscilloscope.
Video distributor Headrest display unit Continuity
Connector Terminal Connector Terminal
M217 32
B554
*124 Existed
28 B574
*224 Existed
Headrest display unit GroundContinuity
Connector Terminal
B554
*124 Not existed
B574
*224
(+)
(− ) Condition Reference value
Headrest display unit
Connector Terminal
Revision: 2010 May2011 QX56
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AV
AUX IMAGE SIGNAL CIRCUIT (FRONT AUXILIARY INPUT JACKS TO AV CON-
TROL UNIT)
AV-171
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AUX IMAGE SIGNAL CIRCUIT (FRONT AUXILIARY INPUT JACKS TO AV
CONTROL UNIT)
DescriptionINFOID:0000000006216334
Transmits the image signal of AUX device from fr ont auxiliary input jacks to AV control unit.
AV control unit transmits the image signal t hat is input to the front display unit.
Diagnosis ProcedureINFOID:0000000006216335
1.CHECK CONTINUITY AUX IMAGE SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front auxiliary input jacks connector and AV control unit connector.
3. Check continuity between front auxiliary input jacks harness connector and AV control unit harness con-
nector.
4. Check continuity between front auxiliary input jacks harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair harness or connector.
2.CHECK AUX IMAGE SIGNAL
1. Connect front auxiliary input jacks connector and AV control unit connector.
2. Turn ignition switch ON.
3. Check signal between front auxiliar y input jacks harness connector and ground.
Is the inspection result normal?
YES >> Replace AV control unit. Refer to AV-212, "Removal and Installation".
NO >> Check that there is no malf unction in the external device.
Front auxiliary input jacks AV control unit
Continuity
Connector Terminal Connector Terminal
M139 7 M209 26 Existed
Front auxiliary input jacks GroundContinuity
Connector Terminal
M139 7 Not existed
(+) (− ) Condition Reference value
Front auxiliary input jacks
Connector Terminal
M139 7 Ground At front AUX image is dis-
played.
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AV-172
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AUX IMAGE SIGNAL CIRCUIT (REAR AUXILIARY INPUT JACKS TO VIDEO DIS-
TRIBUTOR)
AUX IMAGE SIGNAL CIRCUIT (REAR AUXILIARY INPUT JACKS TO VID-
EO DISTRIBUTOR)
DescriptionINFOID:0000000006216336
Transmits the image signal of AUX device from r ear auxiliary input jacks to the video distributor.
Video distributor transmits the image signal that is input to the headrest display unit.
Diagnosis ProcedureINFOID:0000000006216337
1.CHECK CONTINUITY AUX IMAGE SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear auxiliary input jacks connector and video distributor connector.
3. Check continuity between rear auxiliary input jacks harness connector and video distributor harness con-
nector.
4. Check continuity between rear auxili ary input jacks harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair harness or connector.
2.CHECK AUX IMAGE SIGNAL
1. Connect rear auxiliary input jacks connector and video distributor connector.
2. Turn ignition switch ON.
3. Check signal between rear auxiliary input jacks harness connector and ground.
Is the inspection result normal?
YES >> Replace video distributor. Refer to AV-215, "Removal and Installation".
NO >> Check that there is no malfunction in the external device.
Rear auxiliary input jacks Video distributor Continuity
Connector Terminal Connector Terminal
M98 7 M218 40 Existed
Rear auxiliary input jacks GroundContinuity
Connector Terminal
M98 7 Not existed
(+) (− ) Condition Reference value
Rear auxiliary input jacks
Connector Terminal
M98 7 Ground At rear AUX image is dis-
played on headrest display
unit.
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AV
IMAGE SWITCH SIGNAL CIRCUITAV-173
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IMAGE SWITCH SIGNAL CIRCUIT
DescriptionINFOID:0000000006216338
Image switch signal is input from headrest display unit to video distributor, according to rear seat remote controller operation.
When image switch signal is input from headrest displa y unit to video distributor, image output from AV con-
trol unit and image output from auxiliary input jacks switch.
Diagnosis ProcedureINFOID:0000000006216339
1.CHECK CONTINUITY IMAGE SWITCH SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect headrest display unit connector and video distributor connector.
3. Check continuity between headrest display unit har ness connector and video distributor harness connec-
tor.
*1: Headrest display unit LH
*2: Headrest display unit RH
4. Check continuity between headrest display unit harness connector and ground.
*1: Headrest display unit LH
*2: Headrest display unit RH
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair harness or connector.
2.CHECK VIDEO DISTRIBUTOR VOLTAGE
1. Connect headrest display unit connector and video distributor connector.
2. Turn ignition switch ON.
3. Check voltage between video distributor harness connector and ground.
Headrest display unit Video distributor Continuity
Connector Terminal Connector Terminal
B554
*120 M217 10 Existed
B574
*220 9 Existed
Headrest display unit GroundContinuity
Connector Terminal
B554
*120 Not existed
B574
*220
(+)
(− ) Condition Vo l ta g e
(Approx.)
Video distributor
Connector Terminal
Revision: 2010 May2011 QX56
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AV
LOCATION RECOGNITION SIGNAL CIRCUITAV-175
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LOCATION RECOGNITION SIGNAL CIRCUIT
DescriptionINFOID:0000000006216340
The headrest display unit operates by recognizing a mounti ng position by the input of the location recognition
signal.
Diagnosis ProcedureINFOID:0000000006216341
1.CHECK CONTINUITY LOCATION RECOGNITION SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect headrest display unit connector LH (RH).
3. Check continuity between headrest display unit connector LH (RH) harness connector and ground.
*1: Headrest display unit LH
*2: Headrest display unit RH
Is the inspection result normal?
YES >> INSPECTION END
NO >> Repair harness or connector.
Headrest display unit
GroundContinuity
Connector Terminals
B554
*110 Existed
B574
*29
Revision: 2010 May2011 QX56
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AV-176
< DTC/CIRCUIT DIAGNOSIS >
DISK EJECT SIGNAL CIRCUIT
DISK EJECT SIGNAL CIRCUIT
DescriptionINFOID:0000000006216342
The eject signal is output to AV control unit when the eject switch of multifunction switch is pressed.
Diagnosis ProcedureINFOID:0000000006216343
1.CHECK CONTINUITY DISK EJECT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect multifunction switch c onnector and AV control unit connector.
3. Check continuity between multifunction switch harness connector and AV control unit harness connector.
4. Check continuity between multifunction switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair harness or connector.
2.CHECK AV CONTROL UNIT VOLTAGE
1. Connect multifunction switch connector and AV control unit connector.
2. Turn ignition switch ON.
3. Check voltage between AV control unit harness connector and ground.
Is the inspection result normal?
YES >> Replace preset switch. Refer to AV-227, "Removal and Installation".
NO >> Replace AV control unit. Refer to AV-212, "
Removal and Installation".
Multifunction switch AV control unit
Continuity
Connector Terminal Connector Terminal
M72 14M20929 Existed
Multifunction switch GroundContinuity
Connector Terminal
M72 14 Not existed
(+) (− ) Condition Vo l ta g e
(Approx.)
AV c o n t r o l u n i t
Connector Terminal
M209 29 Ground Pressing the eject switch 0 V
Except for above 5.0 V
Revision: 2010 May2011 QX56
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AV
MODE CHANGE SIGNAL CIRCUITAV-177
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MODE CHANGE SIGNAL CIRCUIT
DescriptionINFOID:0000000006216344
AV control unit transmits the mode change signal to BOSE amp.
Driver's Audio Stage controls the speaker's output characte ristic by BOSE amp. so that the driver's seat is to
be the center of sounds.
Diagnosis ProcedureINFOID:0000000006216345
1.CHECK CONTINUITY MODE CHANGE SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BOSE amp. connector and AV control unit connector.
3. Check continuity between BOSE amp. harness connector and AV control unit harness connector.
4. Check continuity between BO SE amp. harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair harness or connector.
2.CHECK MODE CHANGE SIGNAL
1. Connect BOSE amp. connector and AV control unit connector.
2. Turn ignition switch ON.
3. Check voltage between BOSE amp. harness connector and ground.
Is the inspection result normal?
YES >> Replace BOSE amp. Refer to AV-223, "Removal and Installation".
NO >> Replace AV control unit. Refer to AV-212, "
Removal and Installation".
AV control unit BOSE amp.
Continuity
Connector Terminal Connector Terminal
M209 30 B230 37 Existed
BOSE amp. GroundContinuity
Connector Terminal
B230 37 Not existed
(+) (− ) Condition Vo l ta g e
(Approx.)
BOSE amp.
Connector Terminal
B230 37 Ground Driver's Audio Stage ON. 0 V
Driver's Audio Stage OFF. 8.5 V
Revision: 2010 May2011 QX56
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AV-178
< DTC/CIRCUIT DIAGNOSIS >
MICROPHONE SIGNAL CIRCUIT
MICROPHONE SIGNAL CIRCUIT
DescriptionINFOID:0000000006216346
Supply power from AV control unit to microphone. The microphone transmits the sound/voice to the AV control
unit.
Diagnosis ProcedureINFOID:0000000006216347
1.CHECK CONTINUITY BETWEEN AV CO NTROL UNIT AND MICROPHONE CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector and microphone connector.
3. Check continuity between AV control uni t harness connector and microphone harness connector.
4. Check continuity between AV c ontrol unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair harness or connector.
2.CHECK VOLTAGE MICROPHONE VCC
1. Connect AV control unit connector.
2. Turn ignition switch ON.
3. Check voltage between AV control unit harness connector.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace AV control unit. Refer to AV-212, "
Removal and Installation".
3.CHECK MICROPHONE SIGNAL
1. Connect microphone connector.
2. Check signal between AV control unit harness connector.
AV control unit Microphone Continuity
Connector Terminals Connector Terminals
M210 71
R17 2
Existed
72 4
87 1
AV c o n t r o l u n i t GroundContinuity
Connector Terminals
M210 72
Not existed
87
(+) ( −)
Vo l ta g e
(Approx.)
AV c o n t r o l u n i t
Ground
Connector Terminal
M210 72 5.0 V
Revision: 2010 May2011 QX56