turn signal INFINITI QX56 2008 Factory Workshop Manual

AV
POWER SUPPLY AND GROUND CIRCUITAV-67
< COMPONENT DIAGNOSIS > [AUDIO SYSTEM]
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1. Turn ignition switch OFF.
2. Disconnect subwoofer connector.
3. Check voltage between subwoofer harness connector B72 ter- minal 6 and ground.
Is battery voltage present?
YES >> GO TO 3
NO >> Check harness between subwoofer and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between subwoofer harness connector B72 terminal 5 and ground.
Does continuity exist?
YES >> Inspection End.
NO >> Repair harness or connector.
REAR VIEW CAMERA CONTROL UNIT
REAR VIEW CAMERA CONTROL UNIT : Diagnosis ProcedureINFOID:0000000001696102
1.CHECK FUSE
Check that the following fuses of the rear view camera control unit are not blown.
Are the fuses OK?
YES >> GO TO 2
NO >> Be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK POWER SUPPLY CIRCUIT
Check voltage between rear view camera control unit harness con-
nector B73 and ground.
Are the voltage readings as specified?
YES >> GO TO 3
NO >> Check harness between rear view camera control unit and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear view camera control unit connector.
(+) (-) Voltage (approx.)
Connector Terminal
B72 6 Ground Battery voltage
ALNIA0367GB
(+) (-)Continuity
Connector Terminal
B72 5Ground Yes
ALNIA0368GB
Unit Terminals Signal name Fuse No.
Rear view camera control unit 1
Battery power 31
2 Ignition switch ACC or ON 4
Signal nameConnector
No. Te r m i n a l
No. Ignition switch
position Value (Approx.)
Battery po wer supply
B731OFF
Battery voltage
ACC power supply 2 ACC
ALLIA0244ZZ
Revision: March 2010 2008 QX56

AV-68
< COMPONENT DIAGNOSIS >[AUDIO SYSTEM]
POWER SUPPLY AND GROUND CIRCUIT
3. Check continuity between rear view camera control unit harness
connector B31 terminal 3 and ground.
Does continuity exist?
YES >> Inspection End.
NO >> Repair harness or connector.
REAR VIEW CAMERA
REAR VIEW CAMERA : Diagnosis ProcedureINFOID:0000000001696103
1.CHECK POWER SUPPLY CIRCUIT (REAR VIEW CAMERA SIDE)
Check voltage between rear view camera harness connector D504
and ground.
Is voltage reading approximately 6 volts?
YES >> GO TO 4
NO >> GO TO 2
2.CHECK POWER SUPPLY CIRCUIT (CONTINUITY)
1. Turn ignition switch OFF.
2. Disconnect rear view camera and rear view camera control unit connectors.
3. Check continuity between rear view camera harness connector D504 (A) terminal 1 and rear view camera control unit harness
connector B73 (B) terminal 8.
4. Check continuity between rear view camera harness connector D504 (A) terminal 1 and ground.
Are continuity test results as specified?
YES >> GO TO 3
NO >> Repair harness or connector.
3.CHECK POWER SUPPLY CIRCUIT (REAR VIEW CAMERA CONTROL UNIT SIDE)
1. Connect rear view camera control unit harness connector.
2. Turn ignition switch ON.
(+) (-) Continuity
Connector Terminal
B31 3 Ground Yes
ALLIA0245ZZ
Signal name Connector
No. Te r m i n a l
No. Transmission
position Value (Approx.)
Camera ON signal D504 1 Reverse 6V
ALLIA0243ZZ
AB
Continuity
Connector Terminal Connector Terminal
D504 1B73 8 Yes
A —Contin u it y
Connector Terminal
D504 1Ground No
ALLIA0246ZZ
Revision: March 2010 2008 QX56

AV
POWER SUPPLY AND GROUND CIRCUITAV-69
< COMPONENT DIAGNOSIS > [AUDIO SYSTEM]
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3. Check voltage between rear view camera control unit harness connector B73 and ground.
Is voltage reading approximately 6 volts?
YES >> Inspection End.
NO >> Replace rear view camera control unit. Refer to AV-184,
"Removal and Installation".
4.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear view camera harness connector.
3. Check continuity between rear view camera harness connector D504 terminal 2 and ground.
Does continuity exist?
YES >> Inspection End.
NO >> Repair harness or connector.
DVD PLAYER
DVD PLAYER : Diagnosis ProcedureINFOID:0000000001696104
1.CHECK FUSE
Check that the DVD player fuse is not blown.
Is the fuse OK?
YES >> GO TO 2
NO >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2.POWER SUPPLY CIRCUIT CHECK
1. Disconnect DVD player connector M205.
2. Check voltage between the DVD player connector M205 and ground.
Are the voltage results as specified?
YES >> GO TO 3
NO >> • Check connector housings for disconnected or loose terminals. • Repair harness or connector.
Signal name Connector
No. Te r m i n a l
No. Transmission
position Value (Approx.)
Camera ON signal B73 8 Reverse 6V
ALLIA0247ZZ
Signal nameContinuity
Ground Yes
ALLIA0248ZZ
UnitTerminal Signal name Fuse No.
DVD player 21
Battery power 31
24 Ignition switch ACC or ON 4
(+)
(-) OFF ACC ON
Connector Terminal
M205 21
Ground Batter
voltage Battery
voltage Battery
voltage
24 0VBattery
voltage Battery
voltage
ALNIA0325GB
Revision: March 2010 2008 QX56

AV-70
< COMPONENT DIAGNOSIS >[AUDIO SYSTEM]
POWER SUPPLY AND GROUND CIRCUIT
3.GROUND CIRCUIT CHECK
1. Ignition OFF.
2. Check continuity between DVD player harness connector M205 terminal 5 and ground.
Are the continuity results as specified?
YES >> Inspection End.
NO >> Repair DVD player ground.
VIDEO MONITOR
VIDEO MONITOR : Diagnosis ProcedureINFOID:0000000001696105
1.CHECK POWER SUPPLY CIRCUIT
Check voltage between video monitor harness connector R202 and
ground.
Does specified voltage exist?
YES >> GO TO 3
NO >> GO TO 2
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the video monitor connector R202 and the DVD player connector M205.
3. Check continuity between the video monitor harness connector R202 (A) and the DVD player connector M205 (B).
4. Check continuity between video monitor harness connector R202 (A) and ground.
Are continuity test results as specified?
YES >> Check DVD player power and ground supply. Refer to AV-63, "AV CONTROL UNIT : Diagnosis
Procedure".
NO >> Repair harness or connector.
3.CHECK GROUND CIRCUIT
(+) (-) Continuity
Connector Terminal
M205 5 Ground Yes
ALNIA0326GB
Signal name Connector
No. Te r m i n a l
No. Ignition switch
position Value (Approx.)
Display B+ R202 11
ACC 12V
12
ALNIA0328GB
AB Continuity
Connector Terminal Connector Terminal
R202 11
M205 9
Ye s
12 25
A -Contin u it y
Connector Terminal
R202 11
Ground No
12
ALNIA0327GB
Revision: March 2010 2008 QX56

AV
POWER SUPPLY AND GROUND CIRCUITAV-71
< COMPONENT DIAGNOSIS > [AUDIO SYSTEM]
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1. Turn ignition switch OFF.
2. Disconnect video monitor connector.
3. Check continuity between video monitor harness connector R202 and ground.
Does continuity exist?
YES >> Inspection end.
NO >> Repair harness or connector.
MICROPHONE
MICROPHONE : Diagnosis ProcedureINFOID:0000000001696106
1.CHECK POWER SUPPLY CIRCUIT
Check voltage between microphone harness connector R109 termi-
nal 4 and ground.
Is approximately 5V present?
YES >> GO TO 3
NO >> GO TO 2
2.CHECK POWER SUPPLY CIRCUIT (CONTINUITY)
1. Turn ignition switch OFF.
2. Disconnect microphone and AV control unit harness connectors.
3. Check continuity between microphone harness connector R109 (A) terminal 4 and AV control unit harness connector M45 (B)
terminal 70.
4. Check continuity between microphone harness connector R109 (A) terminal 4 and ground.
Are the continuity test results as specified?
YES >> Replace the AV control unit. Refer to AV-164, "Removal and Installation".
NO >> Repair harness or connector.
3.CHECK GROUND CIRCUIT
Connector No. Terminal No. Ignition switch position Continuity
R202 1
OFF Yes
2
ALNIA0329GB
Signal name Connector
No. Te r m i n a l N o . Ignition
switch posi- tion Value (Ap-
prox.)
MIC power R109 4ON 5V
WKIA5796E
AB
Continuity
Connector Terminal Connector Terminal
R109 4 M45 70 Yes
A —Con tin uit y
Connector Terminal
R109 4Ground No
ALNIA0441GB
Revision: March 2010 2008 QX56

AV
RGB (R: RED) SIGNAL CIRCUITAV-73
< COMPONENT DIAGNOSIS > [AUDIO SYSTEM]
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RGB (R: RED) SIGNAL CIRCUIT
DescriptionINFOID:0000000001696107
Transmit the image displayed with audio control unit with RGB signal to the display unit.
Diagnosis ProcedureINFOID:0000000001696108
1.CHECK CONTINUITY RGB (R: RED) SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect display unit connector M93 and AV control unit con- nector M43.
3. Check continuity between display unit harness connector M93 (A) terminal 17 and AV control unit harness connector M43 (B)
terminal 21.
4. Check continuity between display unit harness connector M93 (A) terminal 17 and ground.
Are the continuity results as specified?
YES >> GO TO 2
NO >> Repair harness or connector.
2.CHECK RGB (R: RED) SIGNAL
1. Connect display unit connector M93 and AV control unit connec-
tor M43.
2. Turn ignition switch ON.
3. Check signal between display unit harness connector M93 ter-
minal 17 and ground.
Are the voltage readings as specified?
YES >> Replace display unit. Refer to AV-166, "Removal and Installation".
NO >> Replace AV control unit. Refer to AV-164, "
Removal and Installation".
AB
Continuity
Connector Terminal Connector Terminal
M9317M4321 Yes
A —Continuity
Connector Terminal
M93 17Ground No
ALNIA0409GB
(+)
(-) Condition Reference signal
Connector Terminal
M93 17 Ground Receive
audio sig-
nal
ALNIA0383GB
SKIB2238J
Revision: March 2010
2008 QX56

AV-74
< COMPONENT DIAGNOSIS >[AUDIO SYSTEM]
RGB (G: GREEN) SIGNAL CIRCUIT
RGB (G: GREEN) SI
GNAL CIRCUIT
DescriptionINFOID:0000000001696109
Transmit the image displayed with AV control unit with RGB signal to the display unit.
Diagnosis ProcedureINFOID:0000000001696110
1.CHECK CONTINUITY RGB (G: GREEN) SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect display unit connector M93 and AV control unit con- nector M43.
3. Check continuity between display unit harness connector M93 (A) terminal 6 and AV control unit harness connector M43 (B)
terminal 22.
4. Check continuity between display unit harness connector M93 (A) terminal 6 and ground.
Are the continuity results as specified?
YES >> GO TO 2
NO >> Repair harness or connector.
2.CHECK RGB (G: GREEN) SIGNAL
1. Connect display unit connector M93 and AV control unit connec- tor M43.
2. Turn ignition switch ON.
3. Check signal between display unit harness connector M93 ter-
minal 6 and ground.
Are voltage readings as specified?
YES >> Replace display unit. Refer to AV-166, "Removal and Installation".
NO >> Replace AV control unit. Refer to AV-164, "
Removal and Installation".
AB
Continuity
Connector Terminal Connector Terminal
M936M4322 Yes
A —Continuity
Connector Terminal
M93 6Ground No
ALNIA0410GB
(+)
(-) Condition Reference signal
Connector Terminal
M93 6 Ground Receive
audio sig-
nal
ALNIA0385GB
SKIB2236J
Revision: March 2010
2008 QX56

AV
RGB (B: BLUE) SIGNAL CIRCUITAV-75
< COMPONENT DIAGNOSIS > [AUDIO SYSTEM]
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RGB (B: BLUE) SIGNAL CIRCUIT
DescriptionINFOID:0000000001696111
Transmit the image displayed with AV control unit with RGB signal to the display unit.
Diagnosis ProcedureINFOID:0000000001696112
1.CHECK CONTINUITY RGB (B : BLUE) SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect display unit connector M93 and AV control unit con- nector M43.
3. Check continuity between display unit harness connector M93 (A) terminal 18 and AV control unit harness connector M43 (B)
terminal 23.
4. Check continuity between display unit harness connector M93 (A) terminal 18 and ground.
Are continuity results as specified?
YES >> GO TO 2
NO >> Repair harness or connector.
2.CHECK RGB (B: BLUE) SIGNAL
1. Connect display unit connector M93 and AV control unit connec-
tor M43.
2. Turn ignition switch ON.
3. Check signal between display unit harness connector M93 ter-
minal 18 and ground.
Are voltage readings as specified?
YES >> Replace display unit. Refer to AV-166, "Removal and Installation".
NO >> Replace AV control unit. Refer to AV-164, "
Removal and Installation".
AB
Continuity
Connector Terminal Connector Terminal
M9318M4323 Yes
A —Continuity
Connector Terminal
M93 18Ground No
ALNIA0411GB
(+)
(-) Condition Reference signal
Connector Terminal
M93 18 Ground Receive
audio sig-
nal
ALNIA0387GB
SKIB2237J
Revision: March 2010
2008 QX56

AV-76
< COMPONENT DIAGNOSIS >[AUDIO SYSTEM]
RGB SYNCHRONIZING SIGNAL CIRCUIT
RGB SYNCHRONIZING SIGNAL CIRCUIT
DescriptionINFOID:0000000001696113
Transmit the RGB synchronizing signal to the display unit so as to synchronize the RGB image displayed with
AV control unit.
Diagnosis ProcedureINFOID:0000000001696114
1.CHECK CONTINUITY RGB SYNCHRO
NIZING SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect display unit connector M93 and AV control unit con- nector M43.
3. Check continuity between display unit harness connector M93 (A) terminal 19 and AV control unit harness connector M43 (B)
terminal 25.
4. Check continuity between display unit harness connector M93 (A) terminal 19 and ground.
Are continuity results as specified?
YES >> GO TO 2
NO >> Repair harness or connector.
2.CHECK RGB SYNCHRONIZING SIGNAL
1. Connect display unit connector M93 and AV control unit connec- tor M43.
2. Turn ignition switch ON.
3. Check signal between display unit harness connector M93 ter- minal 19 and ground.
Are voltage readings as specified?
YES >> Replace display unit. Refer to AV-166, "Removal and Installation".
NO >> Replace AV control unit. Refer to AV-164, "
Removal and Installation".
AB
Continuity
Connector Terminal Connector Terminal
M9319M4325 Yes
A —Continuity
Connector Terminal
M93 19Ground No
ALNIA0412GB
(+)
(-) Condition Reference signal
Connector Terminal
M93 19 Ground Receive
audio sig-
nal
ALNIA0389GB
SKIB3603E
Revision: March 2010
2008 QX56

AV
RGB AREA (YS) SIGNAL CIRCUITAV-77
< COMPONENT DIAGNOSIS > [AUDIO SYSTEM]
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RGB AREA (YS) SI GNAL CIRCUIT
DescriptionINFOID:0000000001696115
Transmits the display area of RGB image displayed by AV control unit with RGB area (YS) signal to display
unit.
Diagnosis ProcedureINFOID:0000000001696116
1.CHECK CONTINUITY RGB AR EA (YS) SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect display unit connector M93 and AV control unit con- nector M43.
3. Check continuity between display unit harness connector M93 (A) terminal 9 and AV control unit harness connector M43 (B)
terminal 27.
4. Check continuity between display unit harness connector M93 (A) terminal 9 and ground.
Are continuity results as specified?
YES >> GO TO 2
NO >> Repair harness or connector.
2.CHECK RGB SYNCHRONIZING SIGNAL
1. Connect display unit connector M93 and AV control unit connec-
tor M43.
2. Turn ignition switch ON.
3. Check signal between display unit harness connector M93 ter- minal 9 and ground.
Are voltage readings as specified?
YES >> Replace display unit. Refer to AV-166, "Removal and Installation".
NO >> Replace AV control unit. Refer to AV-164, "
Removal and Installation".
AB
Continuity
Connector Terminal Connector Terminal
M93 9M43 27 Yes
A —Contin u it y
Connector Terminal
M93 9Ground No
ALNIA0413GB
(+)
(-) Condition Reference signal
Connector Terminal
M93 9 Ground Receive
audio sig-
nal
ALNIA0391GB
PKIB4948J
Revision: March 2010
2008 QX56