Page 617 of 3383

AV-24
AUDIO
Revision: November 20092006 QX56
44 (W) 43 (B)Audio right
channel
sound sig-
nal from sat-
ellite radio
tunerInput ON
Receive audio
signal No sound from satel-
lite radio tuner right
channel.
45 –Shield
ground
(audio sig-
nal) –– –
0V–
46 –Shield
ground
(data) –– –
0V–
48 (L) Ground Satellite
radio tuner
request to
audio unitInput ON
Turn audio unit
ON 5VSatellite radio tuner
does not operate
properly.
49 (O/L) Ground Audio RX Input ON Operate audio
volume Satellite radio tuner
audio information
does not display
properly.
50 (W/L) Ground Audio TX Output ON Operate audio
volume Satellite radio tuner
audio information
does not display
properly.
62 (G) 61 (L) Audio in sig-
nal from
bluetooth
control unitInput ON
Receive audio
signal Audio cannot be
heard.
63 (Y) –Mute signal Input ON –– Mute inoperative.
64 –Shield –– – ––
65 (O/L) Ground Audio RX Input ON Operate audio
volume Audio does not oper-
ate properly.
Terminal
(Wire color) ItemSignal
input/
output Condition
Reference value
(Approx.) Example of symptom
+ – Ignition
switch Operation
SKIA0177E
SKIA4403E
SKIA4402E
SKIA0177E
SKIA4403E
Page 618 of 3383

AUDIOAV-25
C
DE
F
G H
I
J
L
M A
B
AV
Revision: November 2009 2006 QX56
Terminals and Reference Value for BOSE Speaker Amp.EKS00BIC
66 (W/L) Ground Audio TX Output ONOperate audio
volume Audio does not oper-
ate properly.
67 –Shield –ON – 0VInterference and dis-
tortion heard from
speakers.
70 –Shield –– – 0VInterference and dis-
tortion heard from
speakers.
71 (B) 69 (W) Voice guide
signal
Output ON Press the
"GUIDE/VOICE"
button. Only route guide and
operation guide are
not heard.
72 (W/B) Ground CD eject
signalInput ON Operate EJECT
button 0V
→5V CD will not eject from
audio unit.
73 (Y/B) Ground CD load sig-
nalInput ON
Operate LOAD
button 0V
→5V CD will not load into
audio unit.
Terminal
(Wire color) ItemSignal
input/
output Condition
Reference value
(Approx.) Example of symptom
+ – Ignition
switch Operation
SKIA4402E
SKIA0171J
Terminal
(wire color) ItemSignal
input/
output Condition
Reference value
(Approx.) Example of
symptom
+ – Ignition
switch Operation
1 (Y) Ground Battery Input ––Battery voltageSystem does not
work properly.
9 (SB) 10 (B/Y) Rear door
speaker LH
and rear door
tweeter LHOutput ON
Receive audio
signal No sound from
rear door speaker
LH or rear door
tweeter LH.
11 (O/L) 12 (R/L) Rear door
speaker RH
and rear door
tweeter RHOutput ON
Receive audio
signal No sound from
rear door speaker
RH or rear door
tweeter RH.
SKIA0177E
SKIA0177E
Page 619 of 3383

AV-26
AUDIO
Revision: November 20092006 QX56
13 (L/W) 14 (L/R)Front door
speaker LH
and front
tweeter LHOutput ON
Receive audio
signal No sound from
front door speaker
LH or front tweeter
LH.
15 (W/B) 16 (L/B) Front door
speaker RH
and front
tweeter RHOutput ON
Receive audio
signal No sound from
front door speaker
RH or front tweeter
RH.
17 (B) Ground Ground –ON –– –
18 (V) 2 (R) Center
speaker
Output ON Receive audio
signal No sound from
center speaker.
19 (W) 3 (B) Subwoofer Output ON Receive audio
signalNo sound from
subwoofer.
22
(W/G) Ground Subwoofer ON
signal Input ON
–More than 6.5V Subwoofer does
not work properly.
24 (L) 23 (B/W) Audio sound
signal rear RHInput ON
Receive audio
signal No sound from
rear door speaker
RH or rear door
tweeter RH.
26 (BR) 25 (B/R) Audio sound
signal rear LH
Input ON Receive audio
signal No sound from
rear door speaker
LH or rear door
tweeter LH.
Terminal
(wire color) ItemSignal
input/
output Condition
Reference value
(Approx.) Example of
symptom
+ – Ignition
switch Operation
SKIA0177E
SKIA0177E
SKIA0177E
SKIA0177E
SKIA0177E
SKIA0177E
Page 620 of 3383
AUDIOAV-27
C
DE
F
G H
I
J
L
M A
B
AV
Revision: November 2009 2006 QX56
28 (Y) 27 (BR)Audio sound
signal front RHInput ON Receive audio
signal No sound from
front door speaker
RH or front tweeter
RH.
30 (W) 29 (B) Audio sound
signal front LHInput ON
Receive audio
signal No sound from
front door speaker
LH or front tweeter
LH.
31 (G/W) Ground Amp. ON sig-
nal
Input ON
–More than 6.5V System does not
work properly.
Terminal
(wire color) ItemSignal
input/
output Condition
Reference value
(Approx.) Example of
symptom
+ – Ignition
switch Operation
SKIA0177E
SKIA0177E
Page 621 of 3383

AV-28
AUDIO
Revision: November 20092006 QX56
Terminals and Reference Value for Rear Audio Remote Control UnitEKS00BID
Terminal
(Wire color) ItemSignal
input/
output Condition
Reference value
(Approx.) Example of symptom
+ – Ignition
switch Operation
2 (G) 1 (B) Audio sound
signal LHInput ON Receive audio
signal No sound from LH
headphone channel.
4 (W) 3 (R) Audio sound
signal RHInput ON
Receive audio
signal No sound from RH
headphone channel.
5 –Shield –– – 0VInterference and dis-
tortion heard from
headphones or rear
audio remote control
unit switches not
operating properly.
6 (R/L) Ground Illumination Input ON Lighting switch
ON
12V
Rear audio remote
control unit does not
illuminate.
Lighting switch
OFF 0V
7 (LG) –Remote
control
ground
–– –
0VRear audio remote
control unit switches
do not function.
8 (O) Ground Remote
control
enable sig-
nalInput ON Audio unit ON
5VRear audio remote
control unit does not
operate.
9 (V) Ground Remote
control AInput ON Audio unit ON
5VRear audio remote
control unit does not
operate properly.
10 (P) Ground Remote
control BInput ON Audio unit ON
5VRear audio remote
control unit does not
operate properly.
11
(BR/Y) GroundRemote
control C
Input ON Audio unit ON
5VRear audio remote
control unit does not
operate properly.
12 (L) Ground Remote
control DInput ON Audio unit ON
5VRear audio remote
control unit does not
operate properly.
13 (V) Ground Remote
control
switch
power sup-
plyInput ON Audio unit ON
12VRear audio remote
control does not
operate.
15 (B) –Ground –ON – 0V –
SKIA0177E
SKIA0177E
Page 622 of 3383

AUDIOAV-29
C
DE
F
G H
I
J
L
M A
B
AV
Revision: November 2009 2006 QX56
Terminals and Reference Value for AV SwitchEKS00BIE
Terminal No.
(Wire color) ItemSignal
input/
output Condition
Vo l ta g e
(Approx.) Example of
symptom
+ – Ignition
switch Operation
1 (Y) Ground Battery
power Input OFF
–Battery voltage System does not
work properly.
2 (V) Ground ACC signal Input ACC –Battery voltage System does not
work properly.
3 (R/L) Ground Illumination
signal Input OFF Lighting switch is
ON (position 1).
Battery voltageAV switch illumi-
nation does not
come on when
lighting switch is
ON (position 1).
Turn lighting switch
OFF.
Approx. 3.0V or less
4 (BR) Ground Illumination
control signal Input ON Illumination control
switch is operated
by lighting switch in
1st position. Changes between 0 and 12V.
AV switch illumi-
nation cannot be
controlled.
5 (B) Ground Ground –ON – 0V –
6 (V) Ground Communica-
tion signal (+) Input/
output ON
– System does not
work properly.
7 –Shield
ground –– –
–
8 (LG) Ground Communica-
tion signal (-) Input/
output ON
– System does not
work properly.
12 (R) Ground Remote con-
trol A Input ON Press MODE
switch 0V
Steering wheel
audio controls
do not function.
Press SEEK UP
switch 0.75V
Press VOL UP switch 2V
Except for above 5V
13 (G) Ground Remote con-
trol B Input ON Press POWER
switch 0V
Steering wheel
audio controls
do not function.
Press SEEK
DOWN switch 0.75V
Press VOL DOWN switch 2V
Except for above 5V
14 (L) –Remote con-
trol ground –– –
–Steering wheel
audio controls
do not function.
16 (W/B) Ground CD EJECT
signal Output ON Pressed
0V
CD eject does
not function.
Released 5V
SKIA0175E
SKIA0176E
Page 623 of 3383

AV-30
AUDIO
Revision: November 20092006 QX56
Terminals and Reference Value for Satellite Radio Tuner (Factory Installed)EKS00GB2
17 (Y/B) GroundCD LOAD
signal Output ON Pressed
0V
CD load does
not function.
Released 5V
Terminal No.
(Wire color) ItemSignal
input/
output Condition
Voltage
(Approx.) Example of
symptom
+ – Ignition
switch Operation
Te r m i n a l
(Wire color) ItemSignal
input/
output Condition
Voltage
(approx.)
+ – Ignition
switch Operation
22 (R) 21 (G) Audio signal LH Output ON Receive audio signal.
24 (W) 23 (B) Audio signal RH Output ON Receive audio signal.
25 –Shield ––
– –
26 ONApprox. 0 V
28 (L) Ground REQ1
(SAT-AUDIO) Output ON
Set to the satellite radio
mode
29 (O/L) Ground Communication signal
(SAT-AUDIO)
Output ONSet to the satellite radio
mode
30 (W/L) Ground Communication signal
(AUDIO-SAT)
Input ONSet to the satellite radio
mode
32 (Y) GroundBattery power supply
InputOFF
− Battery voltage
36 (V) ACC power supply ACC
37 –Antenna signal –– –
SKIB3609E
SKIB3609E
SKIB3825E
SKIB3824E
SKIB3826E
Page 624 of 3383
AUDIOAV-31
C
DE
F
G H
I
J
L
M A
B
AV
Revision: November 2009 2006 QX56
AV Switch Self-Diagnosis FunctionEKS00BIF
It can check ON/OFF operation of each switch in the AV switch and diagnose the input signals from the steer-
ing switch.
STARTING THE SELF-DIAGNOSIS MODE
1. Turn ignition switch from OFF to ACC.
2. Within 10 seconds press and hold the switches “MEMORY 1”
and “MEMORY 6 ” simultaneously for 3 seconds.
Then the self-diagnosis operates. A single beep indicates self-
diagnosis mode is active.
3. Press each switch and listen for beep. NOTE:
CD player LOAD and EJECT buttons are not included in this test
and will not beep when pressed.
EXITING THE SELF-DIAGNOSIS MODE
Turn ignition switch OFF. Then the self-diagnosis ends.
DIAGNOSIS FUNCTION
It can check for continuity of the switches by sounding the beep when each AV switch and steering switch
is pressed.
It can check for continuity of harness between AV switch and steering switch.
WKIA4455E