2006 INFINITI QX56 battery

AV-130
NAVIGATION SYSTEM
Revision: November 20092006 QX56
Power Supply and Ground Circuit Check for AV SwitchEKS00GE7
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.
Terminals Power source Fuse No.
Connector Terminal
M98 1
Battery power 31
2 ACC power4
Terminals Ignition switch position
(+) (– )OFFACCON
Connector Terminal
M98 1
GroundBattery
voltage Battery
voltage Battery
voltage
20 VBattery
voltage Battery
voltage
WKIA1767E
Terminals Ignition switch Continuity
Connector Terminal—
M98 5Ground OFF Yes
WKIA1768E

NAVIGATION SYSTEMAV-133
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AV
Revision: November 2009 2006 QX56
Illumination Signal Check for NAVI Control UnitEKS00GEA
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- 1 6 8 , "NAVI CON-
TROL UNIT" .
NG >> Check harness for open or short between NAVI control unit and IPDM E/R.
Illumination Signal Check for Display Control Unit EKS00GEB
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- 1 6 7 , "DISPLAY
CONTROL UNIT" .
NG >> Check harness for open or short between display control unit and IPDM E/R.
Ignition Signal Check for NAVI Control UnitEKS00GEC
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 63 and ground.
OK or NG
OK >> Replace NAVI control unit. Refer to AV- 1 6 8 , "NAVI CON-
TROL UNIT" .
NG >> Check harness for open or short between NAVI control unit and fuse.
Terminals Lighting switch position
(+)
(– )
Connector Terminal 1st or 2nd
position OFF
B152 61 Ground Battery
voltage Approx. 0V
WKIA4211E
Terminals
Lighting switch position
(+)
(– )
Connector Terminal 1st or 2nd
position OFF
M94 14GroundBattery
voltage Approx. 0V
SKIA4299E
Battery voltage should exist.
WKIA4212E

AV-134
NAVIGATION SYSTEM
Revision: November 20092006 QX56
Ignition Signal Check for Display Control UnitEKS00GED
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 and ground.
OK or NG
OK >> Replace display control unit. Refer to AV- 1 6 7 , "DISPLAY
CONTROL UNIT" .
NG >> Check harness for open or short between display con- trol unit and fuse.
Reverse Signal Check for NAVI Control UnitEKS00GEE
1. CHECK REVERSE LAMP
1. Turn ignition switch ON.
2. Place A/T 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- 1 0 9 , "
BACK-UP LAMP"
2. CHECK REVERSE SIGNAL
1. Disconnect NAVI control unit connector B152.
2. Turn ignition switch ON.
3. With the A/T 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 6 8 , "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 UnitEKS00GEF
1. CHECK REVERSE LAMP
1. Turn ignition switch ON.
2. Place A/T 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- 1 0 9 , "
BACK-UP LAMP" .
Battery voltage should exist.
WKIA1230E
Terminals
Selector lever position
(+)
(– )
Connector Terminal R-positionOther than R-
position
B152 65 Ground Battery voltage Approx. 0V
WKIA4213E

NAVIGATION SYSTEMAV-135
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AV
Revision: November 2009 2006 QX56
2. CHECK REVERSE SIGNAL
1. Disconnect display control unit connector M94.
2. Turn ignition switch ON.
3. With the A/T selector lever in R-position, check voltage between display control unit and ground.
OK or NG
OK >> Replace display control unit. Refer to AV- 1 6 7 , "DISPLAY CONTROL UNIT" .
NG >> Check harness for open or short between display control unit and back-up lamp position relay.
AV Communication Line Check (Between Display Control Unit and NAVI Control
Unit)
EKS00GEG
1. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit for NAVI control unit. Refer to AV- 1 2 6 , "
Power Supply and Ground Cir-
cuit Check for NAVI Control Unit" .
OK or NG
OK >> GO TO 2.
NG >> Check the malfunctioning parts.
2. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector B152 and display control unit connector M95.
3. Check continuity between NAVI control unit and display control unit.
4. Check continuity between NAVI control unit and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
Te r m i n a l s Selector lever position
(+)
(– )
Connector Terminal R-positionOther than
R-position
M94 6 Ground Battery voltage Approx. 0V
SKIA4303E
Terminals
Continuity
BA
Connector Terminal Connector Terminal
NAVI control unit: B152 69
Display con-
trol unit: M95 32
Ye s
70 34
Terminals Continuity
B
—
Connector Terminal
NAVI control unit: B152 69
GroundNo
70
WKIA4214E

AV-156
NAVIGATION SYSTEM
Revision: November 20092006 QX56
Previous NAVI Conditions are Not StoredEKS00GF7
1. CHECK BATTERY POWER
Check NAVI control unit battery power.
Refer to AV- 1 2 6 , "
Power Supply and Ground Circuit Check for NAVI Control Unit" .
OK or NG
OK >> Replace NAVI control unit. Refer to AV- 1 6 8 , "NAVI CONTROL UNIT" .
NG >> Check NAVI control unit battery power system harness.
Previous Vehicle Conditions are Not StoredEKS00GF8
1. CHECK BATTERY POWER
Check display control unit battery power.
Refer to AV- 1 2 7 , "
Power Supply and Ground Circuit Check for Display Control Unit" .
OK or NG
OK >> Replace display control unit. Refer to AV- 1 6 7 , "DISPLAY CONTROL UNIT" .
NG >> Check display control unit battery power system harness.
Position of Current Location Mark is Not CorrectEKS00GF9
1. SELF-DIAGNOSIS
Perform “Self-diagnosis mode ” of the self-diagnosis function. Refer to AV- 11 4 , "
Self-Diagnosis Mode (NAVI)" .
OK or NG
OK >> GO TO 2.
NG >> Check the malfunctioning parts.
2. ERROR HISTORY DIAGNOSIS
Was any error stored in AV- 1 2 0 , "
ERROR HISTORY" of the "CONFIRMATION/ADJUSTMENT" mode?
YES or NO
YES >> AV- 1 2 0 , "DIAGNOSIS BY ERROR HISTORY".
NO >> AV- 1 5 7 , "
Driving Test".
Radio Wave From GPS Satellite is Not ReceivedEKS00GFA
1. CHECK ENVIRONMENT
Check if any metal object that intercepts radio waves or an object that emits radio waves (such as a portable
phone) is located near the GPS antenna. Check if the vehicle is shielded by a building.
OK or NG
OK >> System is not malfunctioning. The GPS antenna may not be able to receive radio waves from the GPS satellite if it is shielded by metal object or an object emitting radio waves is placed near it.
NG >> GO TO 2.
2. SELF-DIAGNOSIS
Perform “Self-diagnosis mode ” of the self-diagnosis function. Refer to AV- 11 4 , "
Self-Diagnosis Mode (NAVI)" .
OK or NG
OK >> Replace GPS antenna. Refer to AV- 1 6 7 , "GPS ANTENNA" .
NG >> Check the malfunctioning parts.

AV-168
NAVIGATION SYSTEM
Revision: November 20092006 QX56
5. Disconnect GPS antenna connector.
6. Remove GPS antenna.
Installation
Installation is in the reverse order of removal.
NAVI CONTROL UNIT
Removal
CAUTION:
To avoid damage, eject map DVD-ROM before removing the NAVI control unit.
1. Disconnect negative battery cable.
2. Remove front passenger seat. Refer to SE-91, "
Removal and Installation" .
3. Remove NAVI control unit kick shield screws (A).
4. Remove NAVI control unit kick shield (1).
5. Disconnect NAVI control unit connectors.
6. Remove NAVI control unit screws (B).
7. Remove NAVI control unit (2).
Installation
Installation is in the reverse order of removal.
STEERING WHEEL AUDIO CONTROL SWITCHES
Refer to AV- 5 9 , "STEERING WHEEL AUDIO CONTROL SWITCHES" .
WKIA1509E
WKIA1508E
WKIA4354E

BCM (BODY CONTROL MODULE)BCS-7
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BCS
Revision: November 2009 2006 QX56

BCM is activated with low current consumption mode.

CAN communication is not active.

When CAN communication operation is detected, it switches to CAN communication status.

When a state of the following switches changes, it switches to CAN communication state:
–Ignition switch
–Key switch (insert)
–Hazard switch
–Main door lock/unlock switch
–Front door switch (LH, RH)
–Rear door switch (LH, RH)
–Back latch (door ajar switch)
–Glass hatch ajar switch
–Combination switch (passing, lighting switch 1st position, front fog lamp)
–Keyfob (lock/unlock signal)
–Front door lock assembly LH (key cylinder switch)

When control performed only by BCM is required by switch, it shifts to CAN communication inactive
mode.

Status of combination switch reading function is changed.
SYSTEMS CONTROLLED BY BCM DIRECTLY

Power door lock system. Refer to BL-16, "POWER DOOR LOCK SYSTEM" .

Remote keyless entry system. Refer to BL-44, "REMOTE KEYLESS ENTRY SYSTEM" .

Power window system. Refer to GW-15, "POWER WINDOW SYSTEM" . NOTE

Sunroof system. Refer to RF-10, "SUNROOF" . NOTE

Room lamp timer. Refer to LT- 1 3 4 , "INTERIOR ROOM LAMP" .

Warning chime system. Refer to DI-43, "WARNING CHIME" .

Turn signal and hazard warning lamps system. Refer to LT- 8 0 , "TURN SIGNAL AND HAZARD WARNING
LAMPS" .

Trailer turn signal and hazard warning lamps system (if equipped). Refer to LT- 1 2 6 , "TRAILER TOW" .

Rear wiper and washer system. Refer to WW-32, "REAR WIPER AND WASHER SYSTEM" .
NOTE:
Power supply only. No system control.
SYSTEMS CONTROLLED BY BCM AND IPDM E/R

Panic system. Refer to BL-44, "REMOTE KEYLESS ENTRY SYSTEM" .

Vehicle security system. Refer to BL-75, "VEHICLE SECURITY (THEFT WARNING) SYSTEM" .

IVIS (NATS) system. Refer to BL-137, "IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)" .

Headlamp, tail lamp, front fog lamp, auto light and battery saver control systems. Refer to LT- 5 , "HEAD-
LAMP (FOR USA)" , LT- 3 3 , "HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -" , LT- 111 ,
"PARKING, LICENSE PLATE AND TAIL LAMPS" , LT- 6 9 , "FRONT FOG LAMP" or LT- 4 7 , "AUTO LIGHT
SYSTEM" .

Front wiper and washer system. Refer to WW-4, "FRONT WIPER AND WASHER SYSTEM" .

Rear window defogger system. Refer to GW-74, "REAR WINDOW DEFOGGER" .
MAJOR COMPONENTS AND CONTROL SYSTEM
System InputOutput
Remote keyless entry system Remote keyless entry receiver (keyfob)

All door locking actuators

Back door opener actuator

Turn signal lamps
Power door lock system

Front power door lock/unlock switch (LH, RH)

All door switches

Key switch All door locking actuators

BCS-8
BCM (BODY CONTROL MODULE)
Revision: November 20092006 QX56
CAN Communication System DescriptionEKS00D7X
Refer to LAN-26, "CAN COMMUNICATION" .
Power supply [ignition (IGN)/retained
accessory power (RAP)] to power win-
dow and sunroof IGN/RAP supply
Power supply to power window and
sunroof system
Power supply (BAT) to power window
and sunroof Battery power supply Power supply to power window and
sunroof system
Panic alarm

Key switch

Remote keyless entry receiver (keyfob) IPDM E/R
Auto light system

Optical sensor

Combination switch IPDM E/R
Battery saver control

Ignition switch

Combination switch

Front door switch LH and RH IPDM E/R
Headlamp Combination switch IPDM E/R
Tail lamp Combination switch IPDM E/R
Front fog lamp Combination switch IPDM E/R
Turn signal lamp Combination switch

Turn signal lamp

Combination meter
Hazard lamp Hazard switch

Turn signal lamp

Combination meter
Room lamp timer

Key switch

Remote keyless entry receiver (keyfob)

Main power window and door lock/unlock switch

Front door lock assembly LH (key cylinder switch)

All door switches Interior room lamp
Key warning chime

Key switch

Front door switch LH Combination meter (warning
buzzer)
Light warning chime

Combination switch

Key switch

Front door switch LH Combination meter (warning
buzzer)
Vehicle-speed-sensing intermittent
wiper

Combination switch

Combination meter IPDM E/R
Rear window defogger Rear window defogger switch IPDM E/R
Air conditioner switch signal Front air control ECM
Blower fan switch signal Front air control ECM
Low tire pressure warning system Remote keyless entry receiver

Combination meter

Display control unit
Trailer tow (if equipped) Combination switch Trailer turn signal relays
Vehicle security system

Remote keyless entry receiver (keyfob)

Main power window and door lock/unlock switch

Power window and door lock/unlock switch RH

Front door lock assembly LH (key cylinder switch)

All door switches

Back door latch (door ajar switch)

IPDM E/R

Security indicator lamp
System
InputOutput