BATTERY INFINITI QX56 2011 Factory Owner's Guide

AV
FRONT DISPLAY UNITAV-61
< ECU DIAGNOSIS INFORMATION >
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(R) Ground Composite image signal Input Ignition
switch ON At DVD image is displayed.
19
(W) Ground Composite image signal
ground —Ignition
switch ON —0 V
20
(W/B) Ground Composite image synchro-
nizing signal InputIgnition
switch ON —
22 — Shield — — — —
23
(V) Ground ACC power supply Input Ignition
switch ACC — Battery voltage
27 — RGB digital image signal
(
− ) Input — — —
28 — RGB digital image signal
(+)
Input — — —
Te r m i n a l
(Wire color) Description
ConditionReference value
(Approx.)
+ – Signal name Input/
Output
SKIB2251J
SKIB0825E
Revision: 2010 May2011 QX56

AV-62
< ECU DIAGNOSIS INFORMATION >
HEADREST DISPLAY UNIT
HEADREST DISPLAY UNIT
Reference ValueINFOID:0000000006216229
TERMINAL LAYOUT
PHYSICAL VALUES
JPNIA0007ZZ
Terminal
(Wire color) Description
ConditionReference value
(Approx.)
+ – Signal name Input/
Output
1
(L) Ground Ground — Ignition
switch ON —0 V
2
(V) Ground Battery power supply Input Ignition
switch
OFF — Battery voltage
3
(GR) Ground Ground — Ignition
switch ON —0 V
4
(L/R) Ground Battery power supply Input Ignition
switch OFF — Battery voltage
9
(B/R) Ground
Location recognition signal
for headrest display unit RH InputIgnition
switch
ON —0 V
10
(L/B) Ground Location recognition signal
for headrest display unit LH
InputIgnition
switch ON —0 V
11
(B) —AV communication signal
(H) Input/
Output —— —
12
(G) —AV communication signal
(H) Input/
Output —— —
13
(R) —
AV communication signal
(L) Input/
Output —— —
14
(W) —AV communication signal
(L) Input/
Output —— —
15 — Shield — — — —
18
(W/R) Ground ACC signal Input Ignition
switch OFF — 3.3 V
Ignition switch
ACC —0 V
Revision: 2010 May2011 QX56

AV-64
< ECU DIAGNOSIS INFORMATION >
VIDEO DISTRIBUTOR
VIDEO DISTRIBUTOR
Reference ValueINFOID:0000000006216230
TERMINAL LAYOUT
PHYSICAL VALUES
JSNIA3024ZZ
Terminal
(Wire color) Description
ConditionReference value
(Approx.)
+ – Signal name Input/
Output
1
(B) —Ground — Ignition
switch
ON —0 V
2
(Y/R) Ground Battery power supply Input Ignition
switch OFF — Battery voltage
3
(B) —Ground — Ignition
switch
ON —0 V
4
(V) Ground ACC power supply Input Ignition
switch ACC — Battery voltage
5
(V/W) Ground Cont. ground for headrest
display unit RH —Ignition
switch ON —0 V
6
(L/W) Ground ACC signal for headrest
display unit RH OutputIgnition
switch
OFF — 3.3 V
Ignition switch ACC —0 V
7
(W/R) Ground Cont. ground for headrest
display unit LH —Ignition
switch ON —0 V
8
(GR/R) GroundACC signal for headrest
display unit LH OutputIgnition
switch
OFF — 3.3 V
Ignition switch ACC —0 V
9
(O/B) Ground Image switch signal for
headrest display unit RH
InputIgnition
switch ON When DVD, USB or front
AUX image is displayed on
headrest display unit RH.
0.5 V
When rear AUX image is
displayed on headrest dis-
play unit RH. 4.5 V
Revision: 2010 May2011 QX56

AV-68
< ECU DIAGNOSIS INFORMATION >
BOSE AMP.
BOSE AMP.
Reference ValueINFOID:0000000006216231
TERMINAL LAYOUT
PHYSICAL VALUES
JSNIA0760ZZ
Te r m i n a l
(Wire color) Description
ConditionReference value
(Approx.)
+ – Signal name Input/
Output
1
(R/B) 2
(W/B) Sound signal squawker LH Output Ignition
switch ON Sound output
4
(L) 3
(O) Sound signal squawker RH Output Ignition
switch
ON Sound output
10
(R) Ground Battery power supply Input Ignition
switch
OFF — Battery voltage
11
(W/B) Ground Battery power supply Input Ignition
switch OFF — Battery voltage
12
(B) —Ground — Ignition
switch ON —0 V
13
(W) 8
(R) Sound signal woofer Output Ignition
switch ON Sound output
SKIB3609E
SKIB3609E
SKIB3609E
Revision: 2010 May2011 QX56

AV
AROUND VIEW MONITOR CONTROL UNITAV-71
< ECU DIAGNOSIS INFORMATION >
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AROUND VIEW MONITOR CONTROL UNIT
Reference ValueINFOID:0000000006216232
TERMINAL LAYOUT
PHYSICAL VALUES
JSNIA0833ZZ
Te r m i n a l
(Wire color) Description
ConditionReference value
(Approx.)
+ – Signal name Input/
Output
1
(B) Ground Ground — Ignition
switch
ON —0 V
2
(Y/G) Ground Battery power supply Input Ignition
switch OFF — Battery voltage
3
(GR/L) Ground Ignition signal Input Ignition
switch
ON — Battery voltage
4
(V) Ground ACC power supply Input Ignition
switch ACC — Battery voltage
5
(L/W) Ground Illumination signal Input Ignition
switch OFF Lighting switch is OFF. 0 V
Lighting switch is ON. 12.0 V
6
(BR/ W) Ground
Vehicle speed signal
(8-pulse) InputIgnition
switch ON When vehicle speed is ap-
prox. 40 km/h (25 MPH) NOTE:
The maximum voltage varies de-
pending on the specification
(destination unit).
7
(P) Ground Reverse signal Input Ignition
switch ON R position 12.0 V
Other than R position 0 V
9
(B/O) Ground Control signal — Ignition
switch ON —0 V
13
(B/O) Ground Control signal — Ignition
switch
ON —0 V
JSNIA0012GB
Revision: 2010 May2011 QX56

AV
POWER SUPPLY AND GROUND CIRCUITAV-161
< DTC/CIRCUIT DIAGNOSIS >
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POWER SUPPLY AND GROUND CIRCUIT
AV CONTROL UNIT
AV CONTROL UNIT : Diagnosis ProcedureINFOID:0000000006216319
1.CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK POWER SUPPLY CIRCUIT
Check voltage between AV control unit harness connectors and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Check harness between AV control unit and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AV control unit connectors.
3. Check continuity between AV control unit harness connectors and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Repair harness or connector.
FRONT DISPLAY UNIT
FRONT DISPLAY UNIT : Diagnosis ProcedureINFOID:0000000006216320
1.CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK POWER SUPPLY CIRCUIT
Check voltage between front display unit harness connector and ground.
Power source Fuse No.
Battery 35
Ignition switch ACC or ON 19
Signal name Connector Terminal Ignition switch position Value (Approx.)
Battery power supply M208 19 OFF Battery voltage ACC power supply M208 7 ACC Battery voltage
Signal name Connector Terminal Ignition switch position Continuity Ground M208 20 OFF Existed
Power source Fuse No. Battery 35
Ignition switch ACC or ON 19
Revision: 2010 May2011 QX56

AV-162
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
Is the inspection result normal?
YES >> GO TO 3.
NO >> Check harness between front display unit and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front display unit connector.
3. Check continuity between front display unit harness connector and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Repair harness or connector.
HEADREST DISPLAY UNIT
HEADREST DISPLAY UNIT : Diagnosis ProcedureINFOID:0000000006216321
1.CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK POWER SUPPLY CIRCUIT
Check voltage 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 3.
NO >> Check harness between headrest display unit and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect headrest display unit connector.
3. Check continuity between headrest display unit harness connector and ground.
 *1: Headrest display unit LH
 *2: Headrest display unit RH
Signal name Connector Terminal Ignition switch position Value (Approx.)
Battery power su pply M215 11 OFF Battery voltage
ACC power supply M215 23 ACC Battery voltage
Signal name Connector Terminal Ignition switch position Continuity Ground M215 12 OFF Existed
Power source Fuse No. Battery 35
Signal name Connector Terminal Ignition switch position Value (Approx.)
Battery power supply B554
*1
B574*2
2
OFF Battery voltage
4
Signal name Connector Terminal Ignition switch position Continuity
Ground B554
*1
B574*2
1
OFF Existed
3
Revision: 2010 May2011 QX56

AV
POWER SUPPLY AND GROUND CIRCUITAV-163
< DTC/CIRCUIT DIAGNOSIS >
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Is the inspection result normal?
YES >> INSPECTION END
NO >> Repair harness or connector.
VIDEO DISTRIBUTOR
VIDEO DISTRIBUTOR : Diagnosis ProcedureINFOID:0000000006216322
1.CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK POWER SUPPLY CIRCUIT
Check voltage between video distributor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Check harness between video distributor and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect video distributor connector.
3. Check continuity between video distributor harness connector and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Repair harness or connector.
BOSE AMP.
BOSE AMP. : Diagnosis ProcedureINFOID:0000000006216323
1.CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK POWER SUPPLY CIRCUIT
Power source Fuse No.
Battery 35
Ignition switch ACC or ON 19
Signal name Connector Terminal Ignition switch position Value (Approx.)
Battery power supply M217 2 OFF Battery voltage ACC power supply M217 4 ACC Battery voltage
Signal name Connector Terminal Ignition switch position Continuity Ground M217 1 OFF Existed
Ground M217 3 OFF Existed
Power source Fuse No. Battery 5
Battery 8
Revision: 2010 May2011 QX56

AV-164
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
Check voltage between BOSE amp. harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Check harness between BOSE amp. and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BOSE amp. connector.
3. Check continuity between BOSE amp. harness connector and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Repair harness or connector.
AROUND VIEW MONITOR CONTROL UNIT
AROUND VIEW MONITOR CONTRO L UNIT : Diagnosis ProcedureINFOID:0000000006216324
1.CHECK FUSE
Check for blown fuses.
Is inspection result normal?
YES >> GO TO 2.
NO >> Be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK POWER SUPPLY CIRCUITS
Check voltage between around view monitor control unit harness connector and ground.
Is inspection result normal?
YES >> GO TO 3.
NO >> Check harness between around view monitor control unit and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect around view monitor control unit connector.
3. Check continuity between around view m onitor control unit harness connector and ground.
Is inspection result normal?
YES >> INSPECTION END
NO >> Repair harness or connector.
Signal name Connector Terminal Ignition switch position Value (Approx.)
Battery power supply B229 10 OFF Battery voltage
Battery power supply B229 11 OFF Battery voltage
Signal name Connector Terminal Ignition switch position Continuity Ground B229 12 OFF Existed
Power source Fuse No. Battery 9
Ignition switch ACC 19
Signal name Connector Terminal Ignition switch position Value (Approx.)
Battery power supply M4 82OFFBattery voltage
ACC power supply M48 4 ACC Battery voltage
Signal name Connector Terminal Ignition switch position Continuity
Ground M48 1 OFF Existed
Revision: 2010 May2011 QX56

AV
POWER SUPPLY AND GROUND CIRCUITAV-165
< DTC/CIRCUIT DIAGNOSIS >
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SONAR CONTROL UNIT (WITH AROUND VIEW MONITOR)
SONAR CONTROL UNIT (WITH AROUND VIEW MONITOR) : Diagnosis Procedure
INFOID:0000000006216325
1.CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between sonar control unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace sonar control unit power supply harness.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect sonar control unit connector.
3. Check continuity between sonar control unit harness connector and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Repair or replace sonar control unit ground harness.
Power source Fuse No.
Ignition switch ACC or ON 19
Signal name Connector Terminal Ignition switch position Value (Approx.)
Battery power supply M47 13 ACC Battery voltage
Signal name Connector Terminal Ignition switch position Continuity Ground M47 24 OFF Existed
Revision: 2010 May2011 QX56