2011 INFINITI QX56 door

DIAGNOSIS SYSTEM (BCM)EXL-25
< SYSTEM DESCRIPTION > [XENON TYPE]
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ACTIVE TEST
*: Only models for Canada display this item.
FLASHER
FLASHER : CONSULT-III F unction (BCM - FLASHER)INFOID:0000000006213912
WORK SUPPORT
DOOR SW-DR
[On/Off] The switch status input from front door switch (driver side)
DOOR SW-AS
[On/Off] The switch status input from front door switch (passenger side)
DOOR SW-RR
[On/Off] The switch status input from rear door switch RH
DOOR SW- RL
[On/Off] The switch status input from rear door switch LH
DOOR SW-BK
[On/Off] The switch status input from back door switch
OPTICAL SENSOR
[On/Off] The sensor status input from optical sensor
OPTI SEN (DTCT)
[V] The value of outside brightness voltage input from the optical sensor
OPTI SEN (FILT)
[V] The value of outside brightness voltage filtered by BCM
Monitor item
[Unit] Description
Test item Operation Description
TAIL LAMP On
Transmits the position light request signal to IPDM E/R via CAN commu-
nication to turn the tail lamp ON
Off Stops the tail lamp request signal transmission
HEAD LAMP Hi
Transmits the high beam request signal via CAN communication to turn
the headlamp (HI)
Lo Transmits the low beam request signal via CAN communication to turn
the headlamp (LO)
Off Stops the high & low beam request signal transmission
FR FOG LAMP On
Transmits the front fog lights request signal to IPDM E/R via CAN com-
munication to turn the front fog lamp ON
Off Stops the front light request signal transmission
RR FOG LAMP On
NOTE:
This item is indicated, but can not tested
Off
DAYTIME RUNNING LIGHT* On
Transmits the front fog lights request signal to IPDM E/R via CAN com-
munication to turn the front fog lamp ON (daytime running light system)
Off Stops the front light request signal transmission (daytime running light
system)
ILL DIM SIGNAL On Transmits the dimmer signal to combination meter via CAN communi-
cation and dims combination meter
 Transmits the dimmer signal to AV control unit and dims display
Off Stops the dimmer signal transmission
Revision: 2010 May2011 QX56

EXL-26
< SYSTEM DESCRIPTION >[XENON TYPE]
DIAGNOSIS SYSTEM (BCM)
*: Factory setting
DATA MONITOR
ACTIVE TEST
Service item Setting item Setting
HAZARD ANSWER
BACK Lock Only With locking only
Sets the hazard warning lamp answer back function
when the door is lock/unlock with the request switch or
the key fob.
Unlk Only With unlocking only
Lock&Unlk
*With locking/unlocking
Off Without the function
Monitor item [Unit] Description
REQ SW-DR
[On/Off] The switch status input from the request switch (driver side)
REQ SW-AS
[On/Off] The switch status input from the request switch (passenger side)
PUSH SW
[On/Off] The switch status input from the push-button ignition switch
TURN SIGNAL R
[On/Off] Each switch status that BCM detects from the combination switch reading function
TURN SIGNAL L
[On/Off]
HAZARD SW
[On/Off] The switch status input from the hazard switch
RKE-LOCK
[On/Off] Lock signal status received from the remote keyless entry receiver
RKE-UNLOCK
[On/Off] Unlock signal status received from the remote keyless entry receiver
RKE-PANIC
[On/Off] Panic alarm signal status received from the remote keyless entry receiver
Test item Operation Description
FLASHER RH Outputs the voltage to blink the right side turn signal lamps.
LH Outputs the voltage to blink the left side turn signal lamps.
Off Stops the voltage to turn the turn signal lamps OFF.
Revision: 2010 May2011 QX56

DIAGNOSIS SYSTEM (IPDM E/R)EXL-27
< SYSTEM DESCRIPTION > [XENON TYPE]
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DIAGNOSIS SYSTEM (IPDM E/R)
Diagnosis DescriptionINFOID:0000000006368066
AUTO ACTIVE TEST
Description
In auto active test, the IPDM E/R sends a drive signal to the following systems to check their operation.
 Oil pressure warning lamp
 Rear window defogger
 Front wiper (LO, HI)
 Parking lamp
 License plate lamp
 Tail lamp
 Side marker lamp
 Front fog lamp
 Headlamp (LO, HI)
 A/C compressor (magnet clutch)
Operation Procedure
CAUTION:
Never perform auto active test in the following conditions.
 Engine is running.
 CONSULT-III is connected.
1. Close the hood and lift the wiper arms from the windshield. (Prevent windshield damage due to wiper
operation)
NOTE:
When auto active test is performed with hood opened, sprinkle water on windshield beforehand.
2. Turn the ignition switch OFF.
3. Turn the ignition switch ON, and within 20 seconds, pr ess the driver door switch 10 times. Then turn the
ignition switch OFF.
CAUTION:
Close passenger door.
4. Turn the ignition switch ON within 10 seconds. Af ter that the horn sounds once and the auto active test
starts.
CAUTION:
Engine starts when ignition switch is turned ON while brake pedal is depressed.
5. The oil pressure warning lamp starts blinking when the auto active test starts.
6. After a series of the following operations is repeated 3 times, auto active test is completed.
NOTE:
 When auto active test has to be cancelled halfw ay through test, turn the ignition switch OFF.
 When auto active test is not activated, door swit ch may be the cause. Check door switch. Refer to DLK-117,
"ComponentFunctionCheck".
Inspection in Auto Active Test
When auto active test is actuated, the following operation sequence is repeated 3 times.
Operation
sequence Inspection location Operation
1 Oil pressure warning lamp Blinks continuously during operation of auto active test
2 Rear window defogger 10 seconds
3 Front wiper LO for 5 seconds → HI for 5 seconds
4 Parking lamp
 License plate lamp
 Tail lamp
 Side marker lamp
 Front fog lamp 10 seconds
Revision: 2010 May2011 QX56

EXL-28
< SYSTEM DESCRIPTION >[XENON TYPE]
DIAGNOSIS SYSTEM (IPDM E/R)
Concept of auto active test
 IPDM E/R starts the auto active test with the door
switch signals transmitted by BCM via CAN communica-
tion. Therefore, the CAN communication line between IPDM E/R and BCM is considered normal if the auto
active test starts successfully.
 The auto active test facilitates troubleshooting if any systems controlled by IPDM E/R cannot be operated.
Diagnosis chart in auto active test
5 Headlamp LO for 10 seconds →HI ON ⇔ OFF 5 times
6 A/C compressor (magnet clutch) ON ⇔ OFF 5 times
Operation
sequence Inspection location Operation
JMMIA0492GB
Symptom Inspection contents Possible cause
Rear window defogger does not operate Perform auto active test.
Does the rear window defog-
ger operate?YES BCM signal input circuit
NO  Rear window defogger
 Rear window defogger
ground circuit
 Harness or connector be- tween IPDM E/R and rear
window defogger
IPDM E/R
Any of the following components do not operate
 Parking lamp
 License plate lamp
Tail lamp
 Side marker lamp
Front fog lamp
 Headlamp (HI, LO)
 Front wiper (HI, LO) Perform auto active test.
Does the applicable system
operate?YES BCM signal input circuit
NO  Lamp or motor
 Lamp or motor ground cir-
cuit
 Harness or connector be- tween IPDM E/R and appli-
cable system
IPDM E/R
A/C compressor does not operate Perform auto active test.
Does the magnet clutch oper-
ate?YES
 A/C auto amp. signal input
circuit
 CAN communication signal
between A/C auto amp. and
ECM
 CAN communication signal
between ECM and IPDM E/
R
NO  Magnet clutch
 Harness or connector be-
tween IPDM E/R and mag-
net clutch
IPDM E/R
Revision: 2010 May2011 QX56

EXTERIOR LAMP FUSEEXL-85
< DTC/CIRCUIT DIAGNOSIS > [XENON TYPE]
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EXTERIOR LAMP FUSE
Diagnosis ProcedureINFOID:0000000006213954
1.CHECK FUSE
Check that the following fuses are not fusing.
Is the inspection result normal?
YES >> The fuse is normal.
NO >> Repair the applicable circuit. And then replace the fuse.
Unit Location Fuse No. Capacity
Headlamp HI (LH) IPDM E/R #52 10 A
Headlamp HI (RH) IPDM E/R #51 10 A
Headlamp LO (LH) IPDM E/R #53 15 A
Headlamp LO (RH) IPDM E/R #54 15 A
Front fog lamp IPDM E/R #50 15 A
Parking lamp (LH)
 Front side marker lamp (LH) IPDM E/R #46 10 A
 Parking lamp (RH)
 Front side marker lamp (RH) IPDM E/R #47 10 A
 Tail lamp (Back door side LH/RH)
 Tail lamp (Body side LH)
 License plate lamp
 Rear side mark er lamp (LH) IPDM E/R #46 10 A
 Tail lamp (Body side RH)
 Rear side mark er lamp (RH) IPDM E/R #47 10 A
Stop lamp FUSE BLOCK (J/B) #7 10 A
Back-up lamp IPDM E/R #55 10 A
Revision: 2010 May2011 QX56

TURN SIGNAL LAMP CIRCUITEXL-99
< DTC/CIRCUIT DIAGNOSIS > [XENON TYPE]
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TURN SIGNAL LAMP CIRCUIT
Component Function CheckINFOID:0000000006213967
1.CHECK TURN SIGNAL LAMP
CONSULT-III ACTIVE TEST
1. Select “FLASHER” of BCM (FLASHER) active test item.
2. With operating the test items, check that the turn signal lamp is turned ON.
Is the inspection result normal?
YES >> Turn signal lamp circuit is normal.
NO >> Refer to EXL-99, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006213968
1.CHECK TURN SIGNAL LAMP BULB
Check applicable lamp bulb.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace bulb.
2.CHECK TURN SIGNAL LA MP OUTPUT VOLTAGE
1. Turn ignition switch OFF.
2. Disconnect front combination lamp connector, door mirror connector and rear combination lamp connec- tor.
3. Turn ignition switch ON.
4. With operating the turn signal switch, check voltage between BCM harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 4. LH : Turn signal lamps (LH) ON
RH : Turn signal lamps (RH) ON
Off : Turn signal lamps OFF
(+)
(–) Condition Vo l ta g e
(Approx.)
BCM
Connector Terminal
M70 60
GroundTurn signal
switch LH
OFF 0 V
61 RH
OFF 0 V
PKID0926E
PKID0926E
Revision: 2010 May2011 QX56

EXL-100
< DTC/CIRCUIT DIAGNOSIS >[XENON TYPE]
TURN SIGNAL LAMP CIRCUIT
3.CHECK TURN SIGNAL LAMP OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM harness connector and front combination lamp, door mirror or rear combi- nation lamp harness connector.
Front turn signal lamp
Side turn signal lamp
Rear turn signal lamp
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace harness.
4.CHECK TURN SIGNAL LAMP SHORT CIRCUIT
Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES >> Check each bulb socket for internal short circuit. Replace BCM if check result is normal. Refer to BCS-81, "
Removal and Installation".
NO >> Repair or replace harness.
5.CHECK TURN SIGNAL LAMP GROUND OPEN CIRCUIT
Check continuity between front combination lamp, door mirror or rear combination lamp and ground.
Front turn signal lamp
Side turn signal lamp
BCM Front combination lamp Continuity
Connector Terminal Connector Terminal
LH M7060 E118
8 Existed
RH 61 E119
BCM Door mirror Continuity
Connector Terminal Connector Terminal
Driver side M7060 D3
20 Existed
Passenger side 61 D23
BCM Rear combination lamp Continuity
Connector Terminal Connector Terminal
LH M7060 B60
3 Existed
RH 61 B232
BCM
GroundContinuity
Connector Terminal
M70 60
Not existed
61
Front combination lamp
GroundContinuity
Connector Terminal
LH E118 3 Existed
RH E119
Door mirror GroundContinuity
Connector Terminal
Driver side D3 19 Existed
Passenger side D23
Revision: 2010 May2011 QX56

EXL-110
< DTC/CIRCUIT DIAGNOSIS >[XENON TYPE]
TAIL LAMP CIRCUIT
- Tail lamp (back door side)
- License plate lamp
3. Check continuity between IPDM E/R harness connec
tor and rear combination lamp harness connector.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace harness.
4.CHECK TAIL LAMP SHORT CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the following connectors.
- IPDM E/R
- Front combination lamp
- Rear combination lamp
- Tail lamp (back door side)
- License plate lamp
3. Check continuity between IP DM E/R harness connector and ground.
Is the inspection result normal?
YES >> Replace IPDM E/R.
NO >> Repair or replace harness.
5.CHECK TAIL LAMP GROUND OPEN CIRCUIT
Check continuity between rear combination lamp harness connector and ground.
Is the inspection result normal?
YES >> Replace rear combination lamp.
NO >> Repair or replace harness.
BACK DOOR SIDE
BACK DOOR SIDE : Co mponent Function CheckINFOID:0000000006238402
1.CHECK TAIL LAMP (BODY SIDE) OPERATION
Check that the tail lamp (body side) is turned ON.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Refer to EXL-109, "
BODY SIDE : Component Function Check".
2.CHECK TAIL LAMP (BACK DOOR SIDE) OPERATION
CONSULT-III ACTIVE TEST
1. Select “EXTERNAL LAMPS” of IPDM E/R active test item.
2. With operating the lighting switch, check that the tail lamp (back door side) is turned ON.
IPDM E/R Rear combination lamp
Continuity
Connector Terminal Connector Terminal
RH E1438 B232
1 Existed
LH 44 B60
IPDM E/R
GroundContinuity
Connector Terminal
RH E1438
Not existed
LH 44
Rear combination lamp
GroundContinuity
Connector Terminal
RH B232 4 Existed
LH B60
Revision: 2010 May2011 QX56