Power window INFINITI QX56 2010 Factory Owner's Manual

DEF-10
< COMPONENT DIAGNOSIS >
REAR WINDOW DEFOGGER POWER SUPPLY AND GROUND CIRCUIT
REAR WINDOW DEFOGGER POWER SUPPLY AND GROUND CIRCUIT
DescriptionINFOID:0000000005146830
Heats the heating wire with the power supply from the rear window defogger relay to prevent the rear window
from fogging up.
Component Function CheckINFOID:0000000005146831
1. CHECK REAR WINDOW DEFOGGER
Check that the heating wire of rear window defogger is heated when turning the rear window defogger switch
ON.
Is the inspection result normal?
YES >> Rear window defogger is OK.
NO >> Refer to DEF-10, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000005146832
Regarding Wiring Diagram information, refer to DEF-27, "Wiring Diagram".
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between rear window defogger connector and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> GO TO 3
2. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear window defogger.
3. Check continuity between rear window defogger connector and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace harness.
3. CHECK HARNESS CONTINUITY
Te r m i n a l s Condition of rear window
defogger switch Voltage (V)
(Approx.)
(+)
(–)
Rear window
defogger
connector Te r m i n a l
D406 1 Ground ON Battery voltage
OFF 0
ALLIA0177ZZ
Rear window defogger connector Terminal
GroundContinuity
D604 2 Yes
ALLIA0178ZZ
Revision: April 20092010 QX56

REAR WINDOW DEFOGGER POWER SUPPLY AND GROUND CIRCUIT
DEF-11
< COMPONENT DIAGNOSIS >
C
D E
F
G H
I
J
K
M A
B
DEF
N
O P
1. Disconnect IPDM E/R.
2. Check continuity between rear window defogger connector (A) and IPDM E/R connector (B).
3. Check continuity between rear window defogger connector (A) and ground.
Is the inspection result normal?
YES >> GO TO 5
NO >> Replace or repair harness.
4. CHECK FILAMENT
Check filament.
Refer to DEF-45, "
Filament Check".
Is the inspection result normal?
YES >> Refer to GI-38, "Intermittent Incident".
NO >> Repair filament. Refer to DEF-45, "
Filament Repair".
5. CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Refer to GI-38, "
Intermittent Incident".
Is the inspection result normal?
YES >> Check the following. • Battery power supply circuit.
• IPDM E/R.
NO >> Repair or replace the malfunctioning parts.
Component InspectionINFOID:0000000005146833
1. CHECK FILAMENT
Check the filament for damage or open circuits.
Refer to DEF-45, "
Filament Check".
Is the inspection result normal?
YES >> Inspection End.
NO >> Repair filament. Refer to DEF-45, "
Filament Repair".
Rear window defog-
ger connector Te r m i n a l
IPDM E/R
connector Terminal Continuity
D406 (A) 1 E124 (B) 60 Yes
Rear window defog- ger connector Te r m i n a l
GroundContinuity
D406 (A) 1 No
LIIA2644E
Revision: April 20092010 QX56

DEF-12
< COMPONENT DIAGNOSIS >
DOOR MIRROR DEFOGGER LH
DOOR MIRROR DEFOGGER LH
DescriptionINFOID:0000000005146834
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:0000000005146835
1. CHECK DOOR MIRROR DEFOGGER LH
Check that heating wire of door mirror defogger LH is heated when turning the rear window defogger switch
ON.
Is the inspection result normal?
YES >> Door mirror defogger is OK.
NO >> Refer to DEF-12, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000005146836
Regarding Wiring Diagram information, refer to DEF-27, "Wiring Diagram".
1. CHECK POWER SUPPLY
Check if the following fuse in the IPDM E/R is blown.
Is the inspection result normal?
YES >> GO TO 2
NO >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2. CHECK DOOR MIRROR DE FOGGER POWER SUPPLY CIRCUIT
Check voltage between IPDM E/R connector and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Replace IPDM E/R. Refer to PCS-35, "
Removal and Installation of IPDM E/R".
3. CHECK DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT 2
1. Turn ignition switch OFF.
2. Disconnect door mirror LH.
3. Turn ignition switch ON.
4. Check voltage between door mirror LH connector and ground.
COMPONENT PARTS AMPEREFUSE NO.
IPDM E/R 15A43
ConnectorTe r m i n a l
ConditionVoltage (V)
(Approx.)
(+) (-)
E120 23 Ground Rear window defogger
switch ON
Battery voltage
Rear window defogger
switch OFF 0
LIIA2049E
ConnectorTe r m i n a l
ConditionVoltage (V)
(Approx.)
(+) (-)
LIIA1456E
Revision: April 20092010 QX56

DOOR MIRROR DEFOGGER LHDEF-13
< COMPONENT DIAGNOSIS >
C
DE
F
G H
I
J
K
M A
B
DEF
N
O P
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace harness.
4. CHECK DOOR MIRROR DEFOGGER CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R and door mirror LH.
3. Check continuity between IPDM E/R connector E120 terminal 23 and door mirror LH connector D4 terminal 10.
Is the inspection result normal?
YES >> GO TO 5
NO >> Repair or replace harness.
5. CHECK DOOR MIRROR DEFOGGER GROUND CIRCUIT
Check continuity between door mirror LH connector D4 terminal 11
and ground.
Is the inspection result normal?
YES >> GO TO 6
NO >> Repair or replace harness.
6. CHECK DOOR MIRROR DEFOGGER LH
Check door mirror defogger LH.
Refer to DEF-13, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 7
NO >> Replace door mirror. Refer to MIR-17, "
Door Mirror Assembly".
7. CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Refer to GI-38, "
Intermittent Incident".
Is the inspection result normal?
YES >> Check the following. • Battery power supply circuit.
• IPDM E/R.
NO >> Repair or replace the malfunctioning parts.
Component InspectionINFOID:0000000005146837
1. CHECK DOOR MIRROR DEFOGGER
D4 10 Ground Rear window defogger
switch ON
Battery voltage
Rear window defogger
switch OFF 0
23 - 10
: Continuity should exist.
WIIA0529E
11 - Ground: Continuity should exist.
LIIA1454E
Revision: April 20092010 QX56

DOOR MIRROR DEFOGGER RHDEF-15
< COMPONENT DIAGNOSIS >
C
DE
F
G H
I
J
K
M A
B
DEF
N
O P
DOOR MIRROR DEFOGGER RH
DescriptionINFOID:0000000005146838
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:0000000005146839
1.CHECK DOOR MIRROR DEFOGGER RH
Check that the heating wire of door mirror defogger RH is heated when turning the rear window defogger
switch ON.
Is the inspection result normal?
YES >> Door mirror defogger RH is OK.
NO >> Refer to DEF-15, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000005146840
Regarding Wiring Diagram information, refer to DEF-27, "Wiring Diagram".
1. CHECK POWER SUPPLY
Check if the following fuse in the IPDM E/R is blown.
Is the inspection result normal?
YES >> GO TO 2
NO >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2. CHECK DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT
Check voltage between IPDM E/R connector and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Replace IPDM E/R. Refer to PCS-35, "
Removal and Installation of IPDM E/R".
3. CHECK DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT 2
1. Turn ignition switch OFF.
2. Disconnect door mirror RH.
3. Turn ignition switch ON.
4. Check voltage between door mirror RH connector and ground.
COMPONENT PARTS AMPEREFUSE NO.
IPDM E/R 15A43
ConnectorTe r m i n a l
ConditionVoltage (V)
(Approx.)
(+) (-)
E120 23 Ground Rear window defogger
switch ON
Battery voltage
Rear window defogger
switch OFF 0
LIIA2049E
ConnectorTe r m i n a l
ConditionVoltage (V)
(Approx.)
(+) (-)
LIIA1456E
Revision: April 20092010 QX56

DEF-16
< COMPONENT DIAGNOSIS >
DOOR MIRROR DEFOGGER RH
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace harness.
4. CHECK DOOR MIRROR DEFOGGER CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R and door mirror RH.
3. Check continuity between IP DM E/R connector E120 terminal
23 and door mirror RH connector D107 terminal 10.
Is the inspection result normal?
YES >> GO TO 5
NO >> Repair or replace harness.
5. CHECK DOOR MIRROR DEFOGGER GROUND CIRCUIT
Check continuity between door mirror RH connector D107 terminal
11 and ground.
Is the inspection result normal?
YES >> GO TO 6
NO >> Repair or replace harness.
6. CHECK DOOR MIRROR DEFOGGER RH
Check door mirror defogger RH.
Refer to DEF-16, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 7
NO >> Replace door mirror. Refer to MIR-17, "
Door Mirror Assembly".
7. CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Refer to GI-38, "
Intermittent Incident".
Is the inspection result normal?
YES >> Check the following. • Battery power supply circuit.
• IPDM E/R.
NO >> Repair or replace the malfunctioning parts.
Component InspectionINFOID:0000000005146841
1. CHECK DOOR MIRROR DEFOGGER
D107 10 Ground Rear window defogger
switch ON
Battery voltage
Rear window defogger
switch OFF 0
23 - 10
: Continuity should exist.
WIIA0529E
11 - Ground: Continuity should exist.
LIIA1454E
Revision: April 20092010 QX56

BCM (BODY CONTROL MODULE)DEF-23
< ECU DIAGNOSIS >
C
DE
F
G H
I
J
K
M A
B
DEF
N
O P
19 V/W Remote keyless entry
receiver (power sup-
ply) Output OFF Ignition switch OFF
20 G/W Remote keyless entry
receiver (signal) Input OFFStand-by (keyfob buttons re-
leased)
When remote keyless entry
receiver receives signal from
keyfob (keyfob buttons
pressed)
21 G NATS antenna amp. Input OFF
→
ON Ignition switch (OFF → ON) Just after turning ignition switch
ON: Pointer of tester should
move for approx. 1 second, then return to battery voltage.
22 W/V BUS — —Ignition switch ON or power
window timer operates
23 G/O Security indicator
lamp Output OFF
Goes OFF
→ illuminates (Ev-
ery 2.4 seconds) Battery voltage
→ 0V
25 BR NATS antenna amp. Input OFF
→
ON Ignition switch (OFF → ON) Just after turning ignition switch
ON: Pointer of tester should
move for approx. 1 second, then return to battery voltage.
26 Y/L Rear wiper auto stop
switch 2 Input ONRise up position (rear wiper
arm on stopper)
0V
A Position (full clockwise stop
position) 0V
Forward sweep (counterclock-
wise direction) Fluctuating
B Position (full counterclock-
wise stop position) Battery voltage
Reverse sweep (clockwise di-
rection) Fluctuating
27 W/R Compressor ON sig-
nal Input ONA/C switch OFF
5V
A/C switch ON 0V
Te r m i n a l
Wire
color Signal name Signal
input/
output Measuring condition
Reference value or waveform
(Approx.)
Ignition
switch Operation or condition
LIIA1893E
LIIA1894E
LIIA1895E
PIIA2344E
Revision: April 20092010 QX56

DEF-26
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
58 W/R Optical sensorInput ONWhen optical sensor is illumi-
nated
3.1V or more
When optical sensor is not illu-
minated 0.6V or less
59 G Front door lock as-
sembly LH actuator
(unlock) Output OFF
OFF (neutral)
0V
ON (unlock) Battery voltage
60 G/B Turn signal (left) Output ON Turn left ON
61 G/Y Turn signal (right) Output ON Turn right ON
62 R/W Step lamp LH and RH Output OFF ON (any door open)
0V
OFF (all doors closed) Battery voltage
63 L Interior room/map
lamp Output OFFAny door
switchON (open)
0V
OFF (closed) Battery voltage
65 V All door lock actuators
(lock) Output OFFOFF (neutral)
0V
ON (lock) Battery voltage
66 G/Y Front door lock actua-
tor RH, rear door lock
actuators LH/RH and
back door lock actua-
tor (unlock) Output OFF
OFF (neutral)
0V
ON (unlock) Battery voltage
67 B Ground Input ON—0V
68 W/L Power window power
supply (RAP) Output —Ignition switch ON
Battery voltage
Within 45 seconds after igni-
tion switch OFF Battery voltage
More than 45 seconds after ig-
nition switch OFF 0V
When front door LH or RH is
open or power window timer
operates 0V
69 W/R Power window power
supply
Output —
—Battery voltage
70 W/B Battery power supply Input OFF —Battery voltage
Te r m i n a l
Wire
color Signal name Signal
input/
output Measuring condition
Reference value or waveform
(Approx.)
Ignition
switch Operation or condition
SKIA3009J
SKIA3009J
Revision: April 20092010 QX56

DEF-38
< SYMPTOM DIAGNOSIS >
REAR WINDOW DEFOGGER DOES NOT OPERATE BUT BOTH OF DOOR MIR-ROR DEFOGGER OPERATE.
REAR WINDOW DEFOGGER DOES NO T OPERATE BUT BOTH OF DOOR
MIRROR DEFOGGER OPERATE.
Diagnosis ProcedureINFOID:0000000005146850
1. CHECK REAR WINDOW DEFOGGER POWER SUPPLY AND GROUND CIRCUIT
Check rear window defogger power supply and ground circuit.
Refer to DEF-10, "
Component Function Check".
Is the inspection result normal?
YES >> Refer to GI-38, "Intermittent Incident".
NO >> Repair or replace the malfunctioning parts.
Revision: April 20092010 QX56

BOTH DOORS MIRROR DEFOGGER DON’T OPERATE BUT REAR WINDOW DEFOGGER OPERATES
DEF-39
< SYMPTOM DIAGNOSIS >
C
DE
F
G H
I
J
K
M A
B
DEF
N
O P
BOTH DOORS MIRROR DEFOGGER DON’T OPERATE BUT REAR WIN-
DOW DEFOGGER OPERATES
Diagnosis ProcedureINFOID:0000000005146851
1. CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Refer to GI-38, "
Intermittent Incident".
Is the inspection result normal?
YES >> Check the following. • Battery power supply circuit.
• IPDM E/R.
NO >> Repair or replace the malfunctioning parts.
Revision: April 20092010 QX56