2011 INFINITI QX56 mirror

DEF-6
< SYSTEM DESCRIPTION >
SYSTEM
SYSTEM
System DiagramINFOID:0000000006299425
System DescriptionINFOID:0000000006299426
System Description
 Multifunction switch (rear window defogger switch) transmits rear window defogger switch signal to AV con-
trol unit via AV communication when rear window defogger switch is turned ON, while ignition switch is ON.
AV control unit transmits rear window defogger switch signal to BCM via CAN communication.
 BCM transmits rear defogger window switch signal to IPDM E/R for approximately 15 minutes via CAN com-
munication when rear window defogger switch signal is received.
 IPDM E/R turns rear window defogger relay ON when rear window defogger switch signal is received.
 Power supply is supplied to rear window defogger and door mirror defoggers when rear window defogger
relay is ON.
 Wiper deicer relay turns ON when rear window defogger relay is ON.
 Power is supply to wiper deicer when wiper deicer relay is ON.
 AV control unit transmits rear window defogger contro l signal to multifunction switch (rear window defogger
switch) via AV communication.
 IPDM E/R transmits rear window defogger control signal to AV control unit via CAN communication.
Timer function
 BCM turns rear window defogger relay ON for appr oximately 15 minutes when rear window defogger switch
is turned ON to operate rear window defogger, door mirror defoggers and wiper deicer.
 Timer is canceled when rear window defogger switch is pressed again during timer operation. BCM turns
rear window defogger relay OFF. The same operation also occurs when the ignition switch is turned OFF
during timer operation.
JMLIA0981GB
Revision: 2010 May2011 QX56

DOOR MIRROR DEFOGGERDEF-29
< DTC/CIRCUIT DIAGNOSIS >
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DOOR MIRROR DEFOGGER
DescriptionINFOID:0000000006299442
Heats the heating wire with the power supply from t he rear window defogger relay to prevent the door mirror
from fogging up.
Component Function CheckINFOID:0000000006299443
1.CHECK DOOR MIRROR DEFOGGER
1. Perform IPDM E/R Active Test (“REAR DEFOGGER”) using CONSULT-III.
2. Touch “ON”.
3. Check that both side door mirror glasses are getting warmer.
Is the inspection result normal?
YES >> Door mirror defogger is OK.
NO >> Refer to DEF-29, "
Diagnosis Procedure"
Diagnosis ProcedureINFOID:0000000006299444
1.CHECK FUSE
1. Turn ignition switch OFF.
2. Check 10A fuse [No.80, loca ted in fuse block (J/B)].
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
2.CHECK DOOR MIRROR DEFOGGER CIRCUIT
1. Disconnect IPDM E/R connector and door mirror (both sides) connector.
2. Check continuity between IPDM E/R harness connec tor and door mirror (driver side) harness connector.
3. Check continuity between IPDM E/R harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Refer to GI-40, "
Intermittent Incident".
>> INSPECTION END
IPDM E/R Door mirro r (driver side)
Continuity
Connector Terminal Connector Terminal
E11 14 D3 7 Existed
IPDM E/R GroundContinuity
Connector Terminal
E11 14 Not existed
Revision: 2010 May2011 QX56

DEF-30
< DTC/CIRCUIT DIAGNOSIS >
DRIVER SIDE DOOR MIRROR DEFOGGER
DRIVER SIDE DOOR MIRROR DEFOGGER
DescriptionINFOID:0000000006299445
Heats the heating wire with the power supply from the rear window defogger relay to prevent the door mirror
from fogging up.
Component Function CheckINFOID:0000000006299446
1.CHECK DRIVER SIDE DOOR MIRROR DEFOGGER
1. Perform IPDM E/R Active Test (“REAR DEFOGGER”) using CONSULT-III.
2. Touch “ON”.
3. Check that the driver side door mirror glass is getting warmer.
Is the inspection result normal?
YES >> Driver side door mirror defogger is OK.
NO >> Refer to DEF-30, "
Diagnosis Procedure"
Diagnosis ProcedureINFOID:0000000006299447
1.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door mirror (driver side) connector.
3. Turn ignition switch ON.
4. Check voltage between door mirror (driver side) harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace harness.
2.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between door mirror (driver side) harness connector and ground.
Is the inspection result normal?
YES >> Replace door mirror glass (driver side).
NO >> Repair or replace harness.
(+)
(–) Condition Voltage (V)
(Approx.)
Door mirror (driver side)
Connector Terminal
D3 7 Ground Rear window defogger
switchON Battery voltage
OFF 0
Door mirror (driver side)
GroundContinuity
Connector Terminal
D3 19 Existed
Revision: 2010 May2011 QX56

PASSENGER SIDE DOOR MIRROR DEFOGGERDEF-31
< DTC/CIRCUIT DIAGNOSIS >
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PASSENGER SIDE DOOR MIRROR DEFOGGER
DescriptionINFOID:0000000006299448
Heats the heating wire with the power supply from t he rear window defogger relay to prevent the door mirror
from fogging up.
Component Function CheckINFOID:0000000006299449
1.CHECK PASSENGER SIDE DOOR MIRROR DEFOGGER
1. Perform IPDM E/R Active Test (“REAR DEFOGGER”) using CONSULT-III.
2. Touch “ON”.
3. Check that the passenger side door mirror glass is getting warmer.
Is the inspection result normal?
YES >> Passenger side door mirror defogger is OK.
NO >> Refer to DEF-31, "
Diagnosis Procedure"
Diagnosis ProcedureINFOID:0000000006299450
1.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door mirror (passenger side) connector.
3. Turn ignition switch ON.
4. Check voltage between door mirror (passenger side) harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace harness.
2.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between door mirror (passenger side) harness connector and ground.
Is the inspection result normal?
YES >> Replace door mirror glass (passenger side).
NO >> Repair or replace harness.
(+)
(–) Condition Voltage (V)
(Approx.)
Door mirror (passenger side)
Connector Terminal
D23 7 Ground Rear window defogger
switchON Battery voltage
OFF 0
Door mirror (passenger side)
GroundContinuity
Connector Terminal
D23 19 Existed
Revision: 2010 May2011 QX56

REAR WINDOW DEFOGGER AND DOOR MIRROR DEFOGGER DO NOT OPER-
ATE.
DEF-37
< SYMPTOM DIAGNOSIS >
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REAR WINDOW DEFOGGER AND DO OR MIRROR DEFOGGER DO NOT
OPERATE.
Diagnosis ProcedureINFOID:0000000006299457
1.CHECK REAR WINDOW DEFOGGER SWITCH
Check rear window defogger switch.
Refer to DEF-25, "
Component Function Check".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace the malfunctioning parts.
2.CHECK REAR WINDOW DEFOGGER RELAY
Check rear window defogger relay.
Refer to DEF-26, "
Component Function Check".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace the malfunctioning parts.
3.CHECK REAR WINDOW DEFOGGER
Check rear window defogger.
Refer to DEF-27, "
Component Function Check".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace the malfunctioning parts.
4.CONFIRM THE OPERATION
Confirm the operation again.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-40, "Intermittent Incident".
NO >> GO TO 1.
Revision: 2010 May2011 QX56

DEF-38
< SYMPTOM DIAGNOSIS >
REAR WINDOW DEFOGGER DOES NOT OPERATE BUT BOTH DOOR MIRROR
DEFOGGERS OPERATE.
REAR WINDOW DEFOGGER DOES NOT OPERATE BUT BOTH DOOR
MIRROR DEFOGGERS OPERATE.
Diagnosis ProcedureINFOID:0000000006299458
1.CHECK REAR WINDOW DEFOGGER
Check rear window defogger.
Refer to DEF-27, "
Component Function Check".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace the malfunctioning parts.
2.CONFIRM THE OPERATION
Confirm the operation again
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-40, "Intermittent Incident".
NO >> GO TO 1.
Revision: 2010 May2011 QX56

DOOR MIRROR DEFOGGER DOES NOT OPERATEDEF-39
< SYMPTOM DIAGNOSIS >
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DOOR MIRROR DEFOGGER DOES NOT OPERATE
BOTH SIDES
BOTH SIDES : DescriptionINFOID:0000000006299459
Driver side and passenger side door mirror defoggers do not operate.
BOTH SIDES : Diagnosis ProcedureINFOID:0000000006299460
1.CHECK DOOR MIRROR DEFOGGER
Check door mirror defogger.
Refer to DEF-29, "
Component Function Check".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace the malfunctioning parts.
2.CONFIRM THE OPERATION
Confirm the operation again.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-40, "Intermittent Incident".
NO >> GO TO 1.
DRIVER SIDE
DRIVER SIDE : DescriptionINFOID:0000000006299461
Driver side door mirror defogger does not operate.
DRIVER SIDE : Diag nosis ProcedureINFOID:0000000006299462
1.CHECK DRIVER SIDE DOOR MIRROR DEFOGGER
Check driver side door mirror defogger.
Refer to DEF-30, "
Component Function Check".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace the malfunctioning parts.
2.CONFIRM THE OPERATION
Confirm the operation again.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-40, "Intermittent Incident".
NO >> GO TO 1.
PASSENGER SIDE
PASSENGER SIDE : DescriptionINFOID:0000000006299463
Passenger side door mirror defogger does not operate.
PASSENGER SIDE : Dia gnosis ProcedureINFOID:0000000006299464
1.CHECK PASSENGER SIDE DOOR MIRROR DEFOGGER.
Check passenger side door mirror defogger.
Refer to DEF-31, "
Component Function Check".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace the malfunctioning parts.
2.CONFIRM THE OPERATION
Revision: 2010 May2011 QX56

DEF-40
< SYMPTOM DIAGNOSIS >
DOOR MIRROR DEFOGGER DOES NOT OPERATE
Confirm the operation again.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-40, "Intermittent Incident".
NO >> GO TO 1.
Revision: 2010 May2011 QX56