2011 INFINITI QX56 door

DIAGNOSIS SYSTEM (IPDM E/R)DEF-11
< SYSTEM DESCRIPTION >
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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

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