fuse INFINITI QX4 2005 Factory Owner's Manual

DVD ENTERTAINMENT SYSTEM
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Revision: October 20052005 QX56
System DescriptionEKS00BJ6
Refer to Owner's Manual for DVD entertainment system operating instructions.
Power is supplied at all times

through 20A fuse (No. 31, located in the fuse and fusible link box)

to DVD player terminal 16.
With the ignition switch in the ACC or ON position, power is supplied

through 10A fuse [No. 4, located in the fuse block (J/B)]

to DVD player terminal 15.
Power is also supplied

from DVD player terminals 31 and 32

to video monitor terminals 11 and 12.
Ground is supplied

to DVD player terminal 22

through body grounds M57, M61 and M79.
Audio signals are supplied

through DVD player terminals 1, 2, 3 and 4

to audio unit terminals 34, 35, 36 and 37.
Video signals are supplied

through DVD player terminals 23, 24, 28 and 29

to video monitor terminals 5, 6, 7 and 8.

DVD ENTERTAINMENT SYSTEM
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Power Supply Circuit InspectionEKS00BJA
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. Disconnect DVD player connector M205.
2. Check voltage between the DVD player 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
Check continuity between DVD player harness connector M206 ter-
minal 22 (B) and ground.
OK or NG
OK >> Inspection End.
NG >>

Check connector housings for disconnected or loose
terminals.

Repair harness or connector.
Unit Terminals Signal name Fuse No.
DVD player16 Battery power 31
15 Ignition switch ACC or ON 4
UnitTe r m i n a l N o .
OFF ACC ON (+)
(-)
ConnectorTe r m i n a l
(wire color)
DVD player M20516 (Y) GroundBattery
voltageBattery
voltageBattery
voltage
15 (V) Ground 0 VBattery
voltageBattery
voltage
WKIA1197E
Continuity should exist.
WKIA1198E

AV-116
NAVIGATION SYSTEM
Revision: October 20052005 QX56
Power Supply and Ground Circuit Check for NAVI Control UnitEKS00BJV
1. CHECK FUSE
Make sure the following fuses of the NAVI control unit are not blown.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
4, "POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Disconnect NAVI control unit connector B151.
2. Check voltage between connector terminals and ground as fol-
lows.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open between NAVI control unit and fuse.
3. CHECK GROUND CIRCUIT
Check continuity between the following NAVI control unit connector
terminals and ground.
OK or NG
OK >> Inspection End.
NG >> Repair or replace harness.
Te r m i n a l s
Power source Fuse No.
Connector Terminal (Wire color)
B1512 (Y), 3 (Y) Battery power 31
6 (O) ACC power 4
Terminals Ignition switch position
(+)
(–) OFF ACC ON
ConnectorTerminal
(Wire color)
B1512 (Y), 3 (Y)
GroundBattery
voltageBattery
voltageBattery
voltage
6 (O) 0VBattery
voltageBattery
voltage
WKIA1372E
Te r m i n a l s
Ignition switch Continuity
Connector Terminal (Wire color) —
B151 1 (B), 4 (B) Ground OFF Yes
SKIA4291E

NAVIGATION SYSTEM
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Revision: October 20052005 QX56
Power Supply and Ground Circuit Check for Display Control UnitEKS00BJW
1. CHECK FUSE
Make sure the following fuses of the display control unit are not blown.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
4, "POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Disconnect display control unit connector M94.
2. Check voltage between connector terminals and ground as fol-
lows.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open or short between display control unit and fuse.
3. CHECK GROUND CIRCUIT
Check continuity between the following display control unit connec-
tor terminals and ground.
OK or NG
OK >> Inspection End.
NG >> Repair or replace harness.
Terminals
Power source Fuse No.
Connector Terminal (Wire color)
M941 (Y) Battery power 31
10 (O) ACC power 4
Terminals Ignition switch position
(+)
(–) OFF ACC ON
ConnectorTe r m i n a l
(Wire color)
M941 (Y)
GroundBattery
voltageBattery
voltageBattery
voltage
10 (O) 0VBattery
voltageBattery
voltage
WKIA1373E
Te r m i n a l s
Ignition switch Continuity
Connector Terminal (Wire color) —
M943 (B)
Ground OFF Yes
13 (B)
WKIA2680E

AV-120
NAVIGATION SYSTEM
Revision: October 20052005 QX56
Power Supply and Ground Circuit Check for AV SwitchEKS00BJY
1. CHECK FUSE
Make sure the following fuses of the AV switch are not blown.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
4, "POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Disconnect AV switch connector.
2. Check voltage between connector terminals and ground as fol-
lows.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open between AV switch and fuse.
3. CHECK GROUND CIRCUIT
Check continuity between AV switch and ground as follows.
OK or NG
OK >> Inspection End.
NG >> Repair or replace harness.
Te r m i n a l s
Power source Fuse No.
Connector Terminal (Wire color)
M981 (Y) Battery power 31
2 (V) ACC power 4
Terminals Ignition switch position
(+)
(–) OFF ACC ON
ConnectorTe r m i n a l
(Wire color)
M981 (Y)
GroundBattery
voltageBattery
voltageBattery
voltage
2 (V) 0VBattery
voltageBattery
voltage
WKIA1767E
Te r m i n a l s
Ignition switch Continuity
Connector Terminal (Wire color) —
M98 5 (B) Ground OFF Yes
WKIA1768E

NAVIGATION SYSTEM
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Revision: October 20052005 QX56
Illumination Signal Check for NAVI Control UnitEKS00BK1
1. CHECK ILLUMINATION SIGNAL
1. Turn the ignition switch ON.
2. Check voltage between NAVI control unit and ground.
OK or NG
OK >> Replace NAVI control unit. Refer to AV-157, "Removal
and Installation of NAVI Control Unit" .
NG >> Check harness for open or short between NAVI control unit and IPDM E/R.
Illumination Signal Check for Display Control Unit EKS00BK2
1. CHECK ILLUMINATION SIGNAL
1. Turn ignition switch ON.
2. Check voltage between display control unit and ground.
OK or NG
OK >> Replace display control unit. Refer to AV-158, "Removal
and Installation of Display Control Unit" .
NG >> Check harness for open or short between display control unit and IPDM E/R.
Ignition Signal Check for NAVI Control UnitEKS00BK3
1. CHECK IGNITION SIGNAL
1. Disconnect NAVI control unit connector B152.
2. Turn ignition switch ON.
3. Check voltage between NAVI control unit harness connector
B152 terminal 26 (G/R) and ground.
OK or NG
OK >> Replace NAVI control unit. Refer to AV-157, "Removal
and Installation of NAVI Control Unit" .
NG >> Check harness for open or short between NAVI control
unit and fuse.
Te r m i n a l s
Lighting switch position
(+)
(–)
ConnectorTe r m i n a l
(Wire color)1st or 2nd
positionOFF
B152 25 (R/L) GroundBattery
voltageApprox. 0V
SKIA4298E
Te r m i n a l s
Lighting switch position
(+)
(–)
ConnectorTe r m i n a l
(Wire color)1st or 2nd
positionOFF
M94 14 (R/L) GroundBattery
voltageApprox. 0V
SKIA4299E
Battery voltage should exist.
SKIA4300E

AV-124
NAVIGATION SYSTEM
Revision: October 20052005 QX56
Ignition Signal Check for Display Control UnitEKS00BK4
1. CHECK IGNITION SIGNAL
1. Disconnect display control unit connector M94.
2. Turn ignition switch ON.
3. Check voltage between display control unit harness connector
M94 terminal 12 (G/R) and ground.
OK or NG
OK >> Replace display control unit. Refer to AV- 1 5 8 , "Removal
and Installation of Display Control Unit" .
NG >> Check harness for open or short between display con-
trol unit and fuse.
Reverse Signal Check for NAVI Control UnitEKS00BK5
1. CHECK REVERSE LAMP
1. Turn ignition switch ON.
2. Place selector lever into R-position. Do back-up lamps come on?
YES or NO
YES >> GO TO 2.
NO >> Check back-up lamp system. Refer to LT-106, "
BACK-UP LAMP" .
2. CHECK REVERSE SIGNAL
1. Disconnect NAVI control unit connector B152.
2. Turn ignition switch ON.
3. With the selector lever in R-position, check voltage between
NAVI control unit and ground.
OK or NG
OK >> Replace NAVI control unit. Refer to AV- 1 5 7 , "Removal
and Installation of NAVI Control Unit" .
NG >> Check harness for open or short between NAVI control unit and back-up lamp position relay.
Reverse Signal Check for Display Control UnitEKS00BK6
1. CHECK REVERSE LAMP
1. Turn ignition switch ON.
2. Place selector lever into R-position. Do back-up lamps come on?
YES or NO
YES >> GO TO 2.
NO >> Check back-up lamp system. Refer to LT-106, "
BACK-UP LAMP" . Battery voltage should exist.
WKIA1230E
Te r m i n a l s
Selector lever position
(+)
(–)
ConnectorTe r m i n a l
(Wire color)R-positionOther than R-
position
B152 27 (G/W) Ground Battery voltage Approx. 0V
SKIA4302E

POWER DOOR LOCK SYSTEM
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Revision: October 20052005 QX56
System DescriptionEIS008PF
Power is supplied at all times

through 50A fusible link (letter f, located in the fuse and fusible link box)

to BCM terminal 70

through 15A fuse [No. 22, located in the fuse block (J/B)]

to BCM terminal 57

through 10A fuse [No. 19, located in the fuse block (J/B)]

to key switch and key lock solenoid terminal 3.
With ignition key inserted, power is supplied

through key switch and key lock solenoid terminal 4

to BCM terminal 37.
Ground is supplied to terminal 67 of BCM through body grounds M57, M61 and M79.
When the door is locked or unlocked with main power window and door lock/unlock switch, ground is supplied

to CPU of main power window and door lock/unlock switch

through main power window and door lock/unlock switch terminal 17

through grounds M57, M61 and M79.
Then main power window and door lock/unlock switch operation signal is supplied

to BCM terminal 22

through main power window and door lock/unlock switch terminal 14.
When the door is locked or unlocked with power window and door lock/unlock switch RH, ground is supplied

to CPU of power window and door lock/unlock switch RH

through power window and door lock/unlock switch RH terminal 11

through grounds M57, M61 and M79.
Then power window and door lock/unlock switch RH operation signal is supplied

to BCM terminal 22

through power window and door lock/unlock switch RH terminal 16.
When the door is locked with front door lock assembly LH (key cylinder switch), ground is supplied

to main power window and door lock/unlock switch terminal 4

through front door lock assembly LH (key cylinder switch) terminals 1 and 5

through grounds M57, M61 and M79.
Then front door lock assembly LH (key cylinder switch) operation signal is supplied

to BCM terminal 22

through main power window and door lock/unlock switch terminal 14.
When the door is unlocked with front door lock assembly LH (key cylinder switch), ground is supplied

to main power window and door lock/unlock switch terminal 6

through front door lock assembly LH (key cylinder switch) terminals 6 and 5

through grounds M57, M61 and M79.
Then front door lock assembly LH (key cylinder switch) operation signal is supplied

to BCM terminal 22

through main power window and door lock/unlock switch terminal 14.
BCM is connected to main power window and door lock/unlock switch and power window and door lock/unlock
switch RH through a bus.
When the front door switch LH is ON (door is open), ground is supplied

to BCM terminal 47

through front door switch LH terminal 2

through front door switch LH case ground.
When the front door switch RH is ON (door is open), ground is supplied

to BCM terminal 12

through front door switch RH terminal 2

POWER DOOR LOCK SYSTEM
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Revision: October 20052005 QX56
Trouble Diagnoses Symptom ChartEIS008PL
BCM Power Supply and Ground Circuit CheckEIS008PM
1. CHECK FUSE AND FUSIBLE LINK
Check the following BCM fuse and fusible link.
NOTE:
Refer to BL-99, "
Component Parts and Harness Connector Location" .
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" .
Symptom Repair order Refer to page
Key reminder door function does not operate
properly.1. Door switch checkBL-31
2. Key switch (insert) checkBL-33
3. Replace BCM.BCS-20
Power door lock does not operate with door lock
and unlock switch on main power window and
door lock/unlock switch or power window and
door lock/unlock switch RH.1. Door lock/unlock switch checkBL-34
2. Replace BCM.BCS-20
Front door lock assembly LH (actuator) does not
operate.1. Front door lock assembly LH (Actuator) checkBL-38
Specific door lock actuator does not operate.1. Front door lock actuator RH checkBL-392. Rear door lock actuator RH/LH checkBL-40
3. Back doorBL-99
Power door lock does not operate with front door
key cylinder LH operation.1. Front door lock assembly LH (key cylinder
switch) checkBL-42
2. Replace BCM.BCS-20
Power door lock does not operate.1. BCM power supply and ground circuit checkBL-292. Door lock/unlock switch checkBL-34
Back door opener does not operate.1. Back door power supply and ground circuit
inspectionBL-1152. Door switch checkBL-31
3. Power liftgate switch system inspectionBL-116
Glass hatch lock actuator does not operate.1. Glass hatch switch checkBL-362. Glass hatch lock actuator checkBL-41
3. Replace BCM.BCS-20
Component Parts Terminal No. (SIGNAL) Ampere No. Location
BCM 57 (BAT power supply) 15A 22 Fuse block (J/B)
BCM 70 (BAT power supply) 50AfFuse and fusible link box

REMOTE KEYLESS ENTRY SYSTEM
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Revision: October 20052005 QX56
System DescriptionEIS008PX
INPUTS
Power is supplied at all times

to BCM terminal 70

through 50A fusible link (letter f , located in the fuse and fusible link box).

to BCM terminal 57

through 15A fuse [No. 22, located in the fuse block (J/B)].
When the key is inserted in the key switch and key lock solenoid, power is supplied

to BCM terminal 37

through key switch and key lock solenoid terminals 3 and 4

through 10A fuse [No. 19, located in the fuse block (J/B)].
When the ignition switch is ACC or ON, power is supplied

to BCM terminal 11

through 10A fuse [No. 4, located in the fuse block (J/B)].
When the ignition switch is ON or START, power is supplied

to BCM terminal 38

through 10A fuse (No. 59, located in the fuse and relay box).
When the front door switch LH is ON (door is OPEN), ground is supplied

to BCM terminal 47

through front door switch LH terminal 2

through front door switch LH case ground.
When the front door switch RH is ON (door is OPEN), ground is supplied

to BCM terminal 12

through front door switch RH terminal 2

through front door switch RH case ground.
When the rear door switch LH is ON (door is OPEN), ground is supplied

to BCM terminal 48

through rear door switch LH terminal 2

through rear door switch LH case ground.
When the rear door switch RH is ON (door is OPEN), ground is supplied

to BCM terminal 13

through rear door switch RH terminal 2

through rear door switch RH case ground.
When the back door latch (door ajar switch) is ON (door is OPEN), ground is supplied

to BCM terminal 43

through back door latch (door ajar switch) terminal 7,

through back door latch (door ajar switch) terminal 8,

through body grounds B7 and B19.
Keyfob signal is input into the BCM from the remote keyless entry receiver.
The remote keyless entry system controls operation of the

power door lock

back door opener

interior lamp and step lamps

panic alarm

hazard and horn reminder

keyless power window down (open)

auto door lock operation