2011 INFINITI QX56 Head lamp

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< DTC/CIRCUIT DIAGNOSIS >
HEADLAMP WASHER RELAY
HEADLAMP WASHER RELAY
Component InspectionINFOID:0000000006371494
1.CHECK HEADLAMP WASHER RELAY
1. Turn the ignition switch OFF.
2. Remove headlamp washer relay.
3. Apply battery voltage to headlamp washer relay between terminals 1 and 2.
4. Check continuity of headlamp washer relay.
Does continuity exist?
YES >> Headlamp washer relay is normal.
NO >> Replace headlamp washer relay.
Headlamp washer relay Condition Continuity
Terminal Voltage
35 Apply Existed
Not Apply Not existed
Revision: 2010 May2011 QX56

HEADLAMP WASHER CIRCUITWW-47
< DTC/CIRCUIT DIAGNOSIS >
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HEADLAMP WASHER CIRCUIT
Component Function CheckINFOID:0000000006371495
1.CHECK HEADLAMP WASHER OPERATION
CONSULT-III ACTIVE TEST
1. Select “HEAD LAMP WASHER” of IPDM E/R active test item.
2. With operating the test item, check headlamp operation.
Is headlamp washer operation normally?
YES >> Headlamp washer circuit is normal.
NO >> Refer to WW-47, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006371496
1.CHECK HEADLAMP WASHER FUSIBLE LINK
1. Turn the ignition switch OFF.
2. Check that the headlamp washer 30A fusible link (#U) is not fusing.
Is the fusible link fusing?
YES >> Replace the fusible link after repairing the applicable circuit.
NO >> GO TO 2.
2.CHECK HEADLAMP WASHER RELAY POWER SUPPLY
1. Remove headlamp washer relay.
2. Check voltage between headlamp washer relay harness connector and ground.
Is the measurement value normal?
YES >> GO TO 3.
NO >> Repair harnesses or connectors.
3.CHECK HEADLAMP WASHER RELAY
Check headlamp washer relay. Refer to WW-46, "
Component Inspection".
Is the headlamp washer relay normal?
YES >> GO TO 4.
NO >> Replace headlamp washer relay.
4.CHECK HEADLAMP WASHER RELAY CONTROL SIGNAL
CONSULT-III ACTIVE TEST
1. Turn the ignition switch OFF.
2. Install headlamp washer relay.
3. Turn the ignition switch ON.
4. Select “HEAD LAMP WASHER” of IPDM E/R active test item.
5. With operating the test item, check vo ltage between IPDM E/R harness connector and ground.
On :Headlamp washer ON operation
Off :Stop the headlamp washer.
(+)
(− ) Voltage (Approx.)
Headlamp washer relay
Connector Terminal
E51 1
Ground Battery voltage
3
(+)
(− ) Te s t i t e m
Voltage (Approx.)
IPDM E/R
HEAD LAMP WASHER
Connector Terminal
Revision: 2010 May2011 QX56

WW-48
< DTC/CIRCUIT DIAGNOSIS >
HEADLAMP WASHER CIRCUIT
Is the measurement value normal?
YES >> GO TO 7.
Fixed at 0 V >> GO TO 5.
Fixed at battery voltage >>Replace IPDM E/R.
5.CHECK HEADLAMP WASHER RELAY CONTROL SIGNAL OPEN CIRCUIT
1. Turn the ignition switch OFF.
2. Remove headlamp washer relay.
3. Disconnect IPDM E/R harness connector.
4. Check continuity between IPDM E/R harness c onnector and headlamp washer relay harness connector.
Does continuity exist?
YES >> GO TO 6.
NO >> Repair the harnesses or connectors.
6.CHECK HEADLAMP WASHER RELAY CONTROL SIGNAL SHORT CIRCUIT
Check continuity between IPDM E/R harness connector and ground.
Does continuity exist?
YES >> Repair the harnesses or connectors.
NO >> Replace IPDM E/R.
7.CHECK HEADLAMP WASHER PUMP OPEN CIRCUIT
1. Turn the ignition switch OFF.
2. Remove headlamp washer relay.
3. Disconnect headlamp washer pump connector.
4. Check continuity between headlamp washer re lay harness connector and headlamp washer pump har-
ness connector.
Does continuity exist?
YES >> GO TO 8.
NO >> Repair the harnesses or connectors.
8.CHECK HEADLAMP WASHER PUMP (GND) OPEN CIRCUIT
Check continuity headlamp washer pump harness connector and ground.
Does continuity exist?
YES >> Replace headlamp washer pump.
NO >> Repair the harnesses or connectors.
E12 21 Ground On 0 V
Off Battery voltage
IPDM E/R Headlamp washer relay Continuity
Connector Terminal Connector Terminal
E12 21 E51 2 Existed
IPDM E/R GroundContinuity
Connector Terminal
E12 21 Not existed
Headlamp washer relay Headlamp washer pump Continuity
Connector Terminal Connector Terminal
E51 5 E41 1 Existed
Headlamp washer pump GroundContinuity
Connector Terminal
E41 2 Existed
Revision: 2010 May2011 QX56

WIPER AND WASHER SYSTEM SYMPTOMSWW-51
< SYMPTOM DIAGNOSIS >
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Rear wiper does not
stop ON only
 Combination switch
BCM Rear wiper motor circuit
Refer to
WW-43, "
Compo-
nent Function Check".
INT only  Combination switch
BCM Combination switch
Refer to
BCS-80, "
Symptom
Ta b l e"
Rear wiper does not
operate normally Wiper is not linked to
the washer operation.
 Combination switch
 Harness between rear wiper motor and BCM
BCM
Combination switch
Refer to
BCS-80, "
Symptom
Ta b l e"
BCM —
Rear wiper does not
return to the stop posi-
tion. [Stops after a five-
second operation.
(Fail-safe)] BCM
 Harness between rear wiper motor and BCM
 Rear wiper motor
Rear wiper auto stop signal
circuit
Refer to
WW-45, "
Compo-
nent Function Check"
Rear wiper does not
operate even when
shift lever is shifted to
the “R”. Check the linked with reverse rear wiper setting.
Refer to
WW-15, "WIPER : CONSULT-III Function (BCM - WIPER)".
NOTE:
Factory setting of the rear wiper operation is operation linked with reverse.
Shift position signal (CAN communication)
BCM
TCM TCM DATA MONITOR
″
SLCT LVR POSI ″
Headlamp washer
does not operate. Headlamp washer
does not operate with
the front washer when
headlamps are turned
ON.  Combination switch
 Harness between combination switch and BCM
BCM
Combination switch
Refer to
BCS-80, "
Symptom
Ta b l e"
 Fusible link
 Harness between fusible link and headlamp
washer relay
 Headlamp washer relay
 Harness between haedlamp washer relay and IPDM E/R
 IPDM E/R
 Harness between haedlamp washer relay and headlamp washer pump
 headlamp washer pump
 Harness between haedlamp washer pump and ground Headlamp washer circuit
Refer to
WW-47, "
Compo-
nent Function Check"
BCM —
Symptom Probable malfunction location Inspection item
Revision: 2010 May2011 QX56

HEADLAMP WASHER NOZZLE AND TUBEWW-55
< REMOVAL AND INSTALLATION >
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REMOVAL AND INSTALLATION
HEADLAMP WASHER NOZZLE AND TUBE
Exploded ViewINFOID:0000000006220393
Hydraulic LayoutINFOID:0000000006220394
1. Headlamp washer nozzle cover 2. Headlamp washer nozzle assembly 3. Headlamp washer nozzle retainer
4. Headlamp washer nozzle bracket 5. Front bumper fascia : Pawl
JMLIA1096ZZ
1. Headlamp washer nozzle assembly LH 2. Headlamp washer tube 3. Headlamp washer tube (tank side)
4. Headlamp washer nozzle assembly RH 5. Front bumper fascia
A. Metal clip
JMLIA1097ZZ
Revision: 2010 May2011 QX56

WW-56
< REMOVAL AND INSTALLATION >
HEADLAMP WASHER NOZZLE AND TUBE
Removal and Installation
INFOID:0000000006220395
REMOVAL
1. Pull out headlamp washer nozzle from bumper fascia, disen- gage pawl (A), and then remove headlamp washer nozzle cover
(1).
2. Remove front bumper fascia. Refer to EXT-13, "
Removal and Installation".
3. Disconnect headlamp washer tube joint.
4. Remove headlamp washer nozzle retainer.
5. Remove headlamp washer nozzle bracket.
6. Remove headlamp washer nozzle from the front bumper fascia.
INSTALLATION
Install in the reverse order of removal.
InspectionINFOID:0000000006220396
HEADLAMP WASHER NOZZLE SPRAY POSITION INSPECTION
CAUTION:
Replace headlamp washer nozzle assembly with a new pa rt if headlamp washer jet position is outside
the headlamp illumination area shown in the figure.
 Check that headlamp washer injection is certainly on headlamp
illumination area.
 Check the headlamp washer injection range as shown in the fig- ure.
JPLIA1030ZZ
JMLIA1098ZZ
a : 67.8 mm (2.31 in)
B : 83.2 mm (3.04 in)
C : 316.2 mm (12.13 in)
JMLIA1099ZZ
Revision: 2010 May2011 QX56

HEADLAMP WASHER NOZZLE AND TUBEWW-57
< REMOVAL AND INSTALLATION >
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 Check the headlamp washer nozzle spray angle.
Outside (A)
Inside (B)
NOTE:
This drawing shows the parts of the headlamp washer nozzle (LH). The headlamp washer nozzle (RH) is
symmetrical of this drawing.
1. Headlamp washer nozzle (outside) 2. Headlamp washer nozzle (inside)
JPLIA1033ZZ
a: 30 °± 3°
b: 70 °± 3°
c: 55 °± 3°
d: 45 °± 3°
Revision: 2010 May2011 QX56

WW-58
< REMOVAL AND INSTALLATION >
WASHER TANK
WASHER TANK
Exploded ViewINFOID:0000000006220397
Removal and InstallationINFOID:0000000006220398
REMOVAL
1. Fully open hood.
2. Remove washer tank inlet fixing clip (A).
3. Pull out washer tank inlet (1) from washer tank.
4. Remove fender protector RH (front). Refer to EXT-23, "
FENDER PROTECTOR : Removal and Installa-
tion".
5. Disconnect washer pump connector.
6. Disconnect headlamp washer pump connector.
7. Disconnect washer level switch connector.
8. Disconnect front washer tube and rear washer tube.
9. Disconnect headlamp washer tube joint.
10. Remove washer tank mounting bolts.
1. Washer tank 2. Washer tank inlet
: Vehicle front
Refer to GI-4, "
Components" for the symbols in the figure.
JMLIA0932GB
: Vehicle front
JMLIA0933ZZ
Revision: 2010 May2011 QX56