2011 INFINITI QX56 Factory Service Manual

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Page 201 of 5598

INFINITI QX56 2011 Factory Service Manual
AV
AV CONTROL UNITAV-53
< ECU DIAGNOSIS INFORMATION >
C
DE
F
G H
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M B A
O P16
(Y/L) 15
(B) Steering switch signal B Input Ignition
switch
ON Keep pressing VOL DOWN
switch.
0 V
Keep pressing

Page 202 of 5598

INFINITI QX56 2011 Factory Service Manual
AV-54
< ECU DIAGNOSIS INFORMATION >
AV CONTROL UNIT
68
(R) Ground Composite image signal Output Ignition
switch ON At DVD image is displayed.
72
(Y/G) Ground Microphone VCC Output Ignition
switch

Page 203 of 5598

INFINITI QX56 2011 Factory Service Manual
AV
AV CONTROL UNITAV-55
< ECU DIAGNOSIS INFORMATION >
C
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F
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M B A
O P
82
(BR/W) GroundVehicle speed signal (8-
pulse) InputIgnition
switch ON When vehicle speed is ap-
prox. 40 km/h (

Page 204 of 5598

INFINITI QX56 2011 Factory Service Manual
AV-56
< ECU DIAGNOSIS INFORMATION >
AV CONTROL UNIT
106(W) 120
(R) Sound signal LH Output Ignition
switch ON When DVD or USB mode is
selected on headrest dis-
play unit LH or RH.
107 (B) 121
(G) S

Page 205 of 5598

INFINITI QX56 2011 Factory Service Manual
AV
AV CONTROL UNITAV-57
< ECU DIAGNOSIS INFORMATION >
C
DE
F
G H
I
J
K L
M B A
O P
Fail-SafeINFOID:0000000006216226
When the ambiance temperature becomes extremely low or extremely high, AV control

AV
AV CONTROL UNITAV-57
< ECU DIAGNOSIS INFORMATION >
C
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F
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M B A
O P
Fail-SafeINFOID:0000000006216226
When the ambiance temperature becomes extremely low or extremely high, AV control unit displays the mes-
sage and limits the AV control unit function.
FAIL-SAFE CONDITIONS
When the ambiance temperature is −20 °C ( −4 °F) or lower, or when it is 70 °C (158 °F) or higher
Display
The messages displayed on fail-safe conditions are as shown below:
DESCRIPTION OF CONTROLS
Ability Operation Mode
There is an ability operation mode for Fail-safes due to low or high ambiance temperature.
If HDD data can be read, fail-safe is shown, then normal displays are displayed only for functions which can be
operated.
RELEASE CONDITIONS OF FAIL-SAFE
Fail-safe is released on following conditions and normal mode is restored.
When The Temperature of HDD Is Low or High
If the ambient temperature becomes out of fa il-safe condition range, normal mode is restored.
DTC IndexINFOID:0000000006216227
SELF-DIAGNOSIS RESULTS DISPLAY ITEM
158 GroundRGB digital image signal
(+)
OutputIgnition
switch ON Not connected connector. 1.3 V
159 Ground Satellite radio antenna sig-
nal InputIgnition
switch ON Not connected satellite an-
tenna connector.
5.0 V
Te r m i n a l
(Wire color) Description
ConditionReference value
(Approx.)
+ – Signal name Input/
Output
Fail-safe mode Display (display of the fail-safe condition)
When HDD temperature is low HDD system is experienci
ng problems due to extreme low temperature.
Normal operation will resume when temperature rises.
When HDD temperature is high HDD system is experienci
ng problems due to extreme high temperature.
Normal operation will resume when temperature drops.
Function When Fail-safe Function is activated
Air conditioner Operation Only multifunction switch (preset switch) can be operated.
Display
LED of multifunction switch (preset switch) illuminates.
Aimed temperature, blow angle, and flow rate are displayed in simplified mode.
Audio Operation Only ON/OFF and volume control operations by multifunction switch (preset switch) are possible.
Display No display (“Fail-safe mode” is displayed)
Camera Operation Image tone cannot be controlled.
Display Cannot be superimposed. (warning display, tone control display)
Hands-free phone Operation Cannot be operated.
Navigation Operation Cannot be operated.
Self diagnosis The display in simplified mode of fail-safe condition
CONSULT-III diagnosis Cannot be operated.
Revision: 2010 May2011 QX56

Page 206 of 5598

INFINITI QX56 2011 Factory Service Manual
AV-58
< ECU DIAGNOSIS INFORMATION >
AV CONTROL UNIT
DTC Display item Refer to
U1000 CAN COMM CIRCUIT [U1000] AV- 11 8 , "
DiagnosisProcedure"
U1010 CONTROL UNIT (CAN) [1010] AV- 11 9 , "DTC Logic"

AV-58
< ECU DIAGNOSIS INFORMATION >
AV CONTROL UNIT
DTC Display item Refer to
U1000 CAN COMM CIRCUIT [U1000] AV- 11 8 , "
DiagnosisProcedure"
U1010 CONTROL UNIT (CAN) [1010] AV- 11 9 , "DTC Logic"
U1200 Cont Unit [U1200]AV- 1 2 0 , "DTC Logic"
U1201 GYRO NO CONN [U1201]AV- 1 2 1 , "DTC Logic"
U1202 G-SENSOR NO CONN [U1202]AV- 1 2 2 , "DTC Logic"
U1204 GPS COMM [U1204]AV- 1 2 3 , "Diagnosis Procedure"
U1205 GPS ROM [U1205]AV- 1 2 4 , "Diagnosis Procedure"
U1206 GPS RAM [U1206]AV- 1 2 5 , "Diagnosis Procedure"
U1207 GPS RTC [U1207]AV- 1 2 6 , "Diagnosis Procedure"
U1216 CAN CONT [U1216] AV- 1 2 7 , "DTC Logic"
U1217 BLUETOOTH MODULE [U1217]AV- 1 2 8 , "DTC Logic"
U1218 HDD CONN [U1218]AV- 1 2 9 , "Diagnosis Procedure"
U1219 HDD READ [U1219]AV- 1 3 0 , "Diagnosis Procedure"
U121A HDD WRITE [U121A] AV- 1 3 1 , "Diagnosis Procedure"
U121B HDD COMM [U121B]AV- 1 3 2 , "Diagnosis Procedure"
U121C HDD ACCESS [U121C] AV- 1 3 3 , "Diagnosis Procedure"
U121D DSP CONN [U121D]AV- 1 3 4 , "Diagnosis Procedure"
U121E DSP COMM [U121E]AV- 1 3 5 , "Diagnosis Procedure"
U1225 USB CONTROLLER [U1225] AV- 1 3 6 , "DTC Logic"
U1227 DVD COMM [U1227]AV- 1 3 7 , "Diagnosis Procedure"
U1228 SUB CPU CONN [U1228] AV- 1 3 8 , "DTC Logic"
U1229 iPod CERTIFICATION [U1229]AV- 1 3 9 , "DTC Logic"
U122A CONFIG UNFINISH [U122A]AV- 1 4 0 , "Diagnosis Procedure"
U122E Built-in AUDIO CONN [U122E] AV- 1 4 1 , "DTC Logic"
U1232 ST ANGLE SEN CALIB [1232]AV- 1 4 2 , "Diagnosis Procedure"
U1243 FRONT DISP CONN [U1243]AV- 1 4 3 , "Diagnosis Procedure"
U1244 GPS ANTENNA CONN [U1244]AV- 1 4 5 , "Diagnosis Procedure"
U1258 XM ANTENNA CONN [U1258]AV- 1 4 6 , "Diagnosis Procedure"
U125A 3RD DISP CONN [U125A] AV- 1 4 7 , "Diagnosis Procedure"
U1263 USB OVERCURRENT [U1263]AV- 1 4 8 , "Diagnosis Procedure"
U1264ANTENNA AMP TERMINAL [OPEN or
SHORT] [U1264] AV- 1 4 9 , "Diagnosis Procedure"
U1265
AMP ON TERMINAL [GND-SHORT or VB-
SHORT] [U1265] AV- 1 5 0 , "Diagnosis Procedure"
U1310 CONTROL UNIT (AV) [U1310]
AV- 1 5 2 , "DTC Logic"
Revision: 2010 May2011 QX56

Page 207 of 5598

INFINITI QX56 2011 Factory Service Manual
AV
AV CONTROL UNITAV-59
< ECU DIAGNOSIS INFORMATION >
C
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M B A
O P
U1300
U1240 AV COMM CIRCUIT [U1300]
SWITCH CONN [U1240]
AV- 1 5 1 , "
Description"
U1300
U1246 AV COMM CIRCUIT

Page 208 of 5598

INFINITI QX56 2011 Factory Service Manual
AV-60
< ECU DIAGNOSIS INFORMATION >
FRONT DISPLAY UNIT
FRONT DISPLAY UNIT
Reference ValueINFOID:0000000006216228
TERMINAL LAYOUT
PHYSICAL VALUES
JSNIA2241ZZ
Terminal
(Wire color) Description
Conditio

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