2006 INFINITI QX56 turn signal

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Revision: November 2009 2006 QX56
Satellite Radio Tuner (Factory Installed) Power and Ground Supply Circuit
Inspection
EKS00GB3
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. Turn ignition switch OFF.
2. Disconnect satellite radio tuner (factory installed) M41 connector.
3. Check voltage between the satellite radio tuner (factory installed) 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
1. Turn ignition switch OFF.
2. Inspect satellite radio tuner (factory installed) case ground.
3. Disconnect satellite radio tuner (factory installed) connector M41 (A) and audio unit connector M42 (B).
4. Check continuity between satellite radio tuner (factory installed) and audio unit.
OK or NG
OK >> Inspection End.
NG >>

Check connector housings for disconnected or loose
terminals.

Repair harness, connector or satellite radio tuner (factory installed) case ground.
Unit Terminals Signal name Fuse No.
Satellite radio tuner (factory
installed) 32
Battery power 31
36 Ignition switch ACC or ON 6
UnitTerminal No.
OFF ACC ON
(+)
(-)
Connector Terminal
Satellite
radio tuner
(factory
installed) M41
32 Ground
Battery
voltage Battery
voltage Battery
voltage
36 Ground 0V Battery
voltage Battery
voltage
WKIA4539E
Terminals
Continuity
Satellite radio tuner (factory
installed) Audio unit
Connector Terminal Connector Terminal
A: M41 25
B: M42 45
Ye s
26 46
WKIA4540E

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Revision: November 2009 2006 QX56
4. CHECK REQ1 SIGNAL
1. Connect satellite radio tuner (factory installed) connector and audio unit connector.
2. Turn ignition switch to ACC
3. Check signal between satellite radio tuner (factory installed) har- ness connector M41 terminal 28 and ground with CONSULT-ll or
oscilloscope.
OK or NG
OK >> GO TO 5.
NG >> Replace audio unit. Refer to AV- 5 5 , "
AUDIO UNIT" .
5. CHECK TXD SIGNAL
1. Check signal between satellite radio tuner (factory installed) har- ness connector M41 terminal 29 and ground with CONSULT-ll or
oscilloscope.
OK or NG
OK >> GO TO 6.
NG >> Replace audio unit. Refer to AV- 5 5 , "
AUDIO UNIT" .
6. CHECK RXD SIGNAL
1. Check signal between satellite radio tuner (factory installed) har- ness connector M41 terminal 30 and ground with CONSULT-ll or
oscilloscope.
OK or NG
OK >> Replace satellite radio tuner (factory installed). Refer to AV- 5 8 , "
SATELLITE RADIO TUNER" .
NG >> Replace audio unit. Refer to AV- 5 5 , "
AUDIO UNIT" .
28 - Ground : Refer to
AV- 3 0 , "
Te r m i n a l s
and Reference Value for Sat-
ellite Radio Tuner (Factory
Installed)" .
WKIA4544E
29 - Ground: Refer to AV- 3 0 , "Te r m i n a l s
and Reference Value for Sat-
ellite Radio Tuner (Factory
Installed)" .
WKIA4545E
30 - Ground : Refer to AV- 3 0 , "Te r m i n a l s
and Reference Value for Sat-
ellite Radio Tuner (Factory
Installed)" .
WKIA4546E

AV-40
AUDIO
Revision: November 20092006 QX56
Satellite Radio Tuner (Factory Installed) Left Channel Audio Signal Circuit
Inspection
EKS00GB5
1. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect satellite radio tuner (factory installed) connector M41 (A) and audio unit connector M42 (B).
3. Check continuity between satellite radio tuner (factory installed) and audio unit.
4. Check continuity between satellite radio tuner (factory installed) and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2. CHECK LEFT CHANNEL AUDIO SIGNAL
1. Connect satellite radio tuner (factory installed) and audio unit.
2. Turn ignition switch ON.
3. Check signal between satellite radio tuner (factory installed) connector M41 terminals 21 and 22 with CONSULT-ll or oscillo-
scope.
OK or NG
OK >> Replace satellite radio tuner (factory installed). Refer to AV- 5 8 , "
SATELLITE RADIO TUNER" .
NG >> Replace audio unit. Refer to AV- 5 5 , "
AUDIO UNIT" .
Terminals
Continuity
Satellite radio tuner (factory
installed) Audio unit
Connector Terminal Connector Terminal
A: M41 21
B: M42 41
Ye s
22 42
Terminals Continuity
Satellite radio tuner (factory installed)
—
Connector Terminal
A: M41 21
GroundNo
22
WKIA4547E
21 - 22 : Refer to AV- 3 0 , "Terminals
and Reference Value for Sat-
ellite Radio Tuner (Factory
Installed)" .
WKIA4548E

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Revision: November 2009 2006 QX56
Satellite Radio Tuner (Factory Installed) Right Channel Audio Signal Circuit
Inspection
EKS00GB6
1. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect satellite radio tuner (factory installed) connector M41 (A) and audio unit connector M42 (B).
3. Check continuity between satellite radio tuner (factory installed) and audio unit.
4. Check continuity between satellite radio tuner (factory installed) and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2. CHECK RIGHT CHANNEL AUDIO SIGNAL
1. Connect satellite radio tuner (factory installed) and audio unit.
2. Turn ignition switch ON.
3. Check signal between satellite radio tuner (factory installed) connector M41 terminals 23 and 24 with CONSULT-ll or oscillo-
scope.
OK or NG
OK >> Replace satellite radio tuner (factory installed). Refer to AV- 5 8 , "
SATELLITE RADIO TUNER" .
NG >> Replace audio unit. Refer to AV- 5 5 , "
AUDIO UNIT" .
Steering Switch CheckEKS00BIJ
1. AV SWITCH SELF-DIAGNOSIS FUNCTION CHECK
1. Start AV switch self-diagnosis function. Refer to AV- 3 1 , "
AV Switch Self-Diagnosis Function" .
2. Operate steering switch.
Does steering switch operate normally?
YES >> Inspection End.
NO >> GO TO 2.
Terminals
Continuity
Satellite radio tuner (factory
installed) Audio unit
Connector Terminal Connector Terminal
A: M41 23
B: M42 43
Ye s
24 44
Terminals Continuity
Satellite radio tuner (factory installed)
—
Connector Terminal
A: M41 23
GroundNo
24
WKIA4549E
23 - 24 : Refer to AV- 3 0 , "Terminals
and Reference Value for Sat-
ellite Radio Tuner (Factory
Installed)" .
WKIA4550E

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Revision: November 2009 2006 QX56
2. FRONT SPEAKER SIGNAL CHECK
1. Connect BOSE speaker amp. connector M113 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 M113 terminals with CONSULT-II or oscilloscope.
OK or NG
OK >> Replace suspect speaker. Refer to AV- 5 6 , "FRONT
DOOR SPEAKER" or AV- 5 6 , "FRONT TWEETER" .
NG >> GO TO 3.
Te r m i n a l s
Condi-tion Reference
signal
(+)
(-)
Con-
nector Terminal
Con-
nector Terminal
M113 13
M113 14
Receive
audio
signal
15
16
WKIA4555E
SKIA0177E

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Revision: November 2009 2006 QX56
4. FRONT SPEAKER SIGNAL CHECK
1. Connect audio unit connector and BOSE speaker amp. connector.
2. Turn ignition switch ACC.
3. Push “POWER” switch.
4. Check the signal between audio unit harness connector termi- nals with CONSULT-II or oscilloscope.
OK or NG
OK >> Replace BOSE speaker amp. Refer to AV- 5 5 , "BOSE
SPEAKER AMP." .
NG >> Replace audio unit. Refer to AV- 5 5 , "
Removal and
Installation" .
Te r m i n a l s
Condi-tion Reference
signal
(+) (-)
Con-
nector Te r m i -
nal Con-
nector Te r m i -
nal
M43 2
M43 1
Receive
audio
signal
43
WKIA4553E
SKIA0177E

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Revision: November 2009 2006 QX56
2. REAR SPEAKER SIGNAL CHECK
1. Connect BOSE speaker amp. connector M113 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 M113 terminals with CONSULT-II or oscilloscope.
OK or NG
OK >> Replace suspect speaker. Refer to AV- 5 7 , "REAR
DOOR SPEAKER" or AV- 5 7 , "REAR DOOR
TWEETER" .
NG >> GO TO 3.
Te r m i n a l s
Condi-tion Reference
signal
(+)
(-)
Con- nec- tor Terminal Con-
nec- tor Terminal
M113 9
M113 10
Receive
audio
signal
11
1 2
WKIA4557E
SKIA0177E

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Revision: November 2009 2006 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 between audio unit harness connector M44 terminals with CONSULT-II or oscilloscope.
OK or NG
OK >> Replace BOSE speaker amp. Refer to AV- 5 5 , "BOSE
SPEAKER AMP." .
NG >> Replace audio unit. Refer to AV- 5 5 , "
Removal and
Installation" .
Sound Is Not Heard From Center SpeakerEKS00BIO
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 M112 terminals and center speaker harness connector M110
terminals.
3. Check continuity between BOSE speaker amp. harness connec- tor M112 terminals and ground.
OK or NG
OK >> GO TO 2.
NG >>

Check connector housings for disconnected or loose terminals.

Repair harness or connector.
Terminals Condi-tion Reference
signal
(+)
(-)
Con-
nector Te r m i -
nal Con-
nector Terminal
M44 14
M44 13
Receive
audio
signal
16
15
WKIA4558E
SKIA0177E
Terminals
Continuity
BOSE speaker amp. Center speaker
Connector Terminal Connector Terminal
M112 2
M110 -
Ye s
18 +
Te r m i n a l s Continuity
BOSE speaker amp.
—
Connector Terminal
M112 2
Ground No
18
WKIA1222E