INFINITI QX56 2010 Factory Service Manual

PWC-46
< COMPONENT DIAGNOSIS >
REAR POWER VENT WINDOW MOTOR RH CIRCUIT CHECK
REAR POWER VENT WINDOW MOTOR RH CIRCUIT CHECK
DescriptionINFOID:0000000005147230
Rear power vent windows OPEN/CLOSE by receiving the signal from rear power vent window switch.
Diagnosis ProcedureINFOID:0000000005147231
Regarding Wiring Diagram information, refer to PWC-53, "Wiring Diagram".
1.CHECK REAR POWER VENT WINDOW SWITCH RH SIGNAL
1. Turn ignition switch OFF.
2. Disconnect rear power vent window motor RH.
3. Turn ignition switch ON.
4. Check voltage between rear power vent window motor LH con- nector B150 terminals 1, 2 and ground.
Is the inspection result normal?
YES >> Replace rear power vent window motor RH. Refer to GW-21, "Removal and Installation".
NO >> Repair or replace harness.
Connector Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
B150 1
Ground Opening Battery voltage
Closing 0
2 Opening
0
Closing Battery voltage
ALKIA1037GB
Revision: April 20092010 QX56

REAR POWER VENT WINDOW RELAY (OPEN) CHECK
PWC-47
< COMPONENT DIAGNOSIS >
C
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M A
B
PWC
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REAR POWER VENT WINDOW RELAY (OPEN) CHECK
DescriptionINFOID:0000000005147232
Rear power vent windows OPEN/CLOSE by receiving the signal from rear power vent window switch.
Diagnosis ProcedureINFOID:0000000005147233
Regarding Wiring Diagram information, refer to PWC-53, "Wiring Diagram".
1.CHECK REAR POWER VENT WINDOW RELAY (OPEN) POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power vent window relay (OPEN).
3. Turn ignition switch ON.
4. Check voltage between rear power vent window relay (OPEN) connector and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace harness.
2.CHECK REAR POWER VENT WINDOW RELAY (OPEN)
Check continuity between rear power vent window relay (OPEN) ter-
minals 3 and 4, 3 and 5.
Is the inspection result normal?
YES >> GO TO 3
NO >> Replace rear power vent window relay (OPEN).
3.CHECK REAR POWER VENT WINDOW RELAY (OPEN) GROUND CIRCUIT
Check continuity between rear power vent window relay (OPEN)
connector M87 terminal 4 and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace harness.
4.CHECK REAR POWER VENT WI NDOW RELAY (OPEN) CIRCUIT
ConnectorTe r m i n a l s
Voltage (V)
(Approx.)
(+) (-)
M87 1
Ground Battery voltage
5
LIIA1565E
Terminals Condition Continuity
34 12V direct current supply
between terminals 1 and 2
No
No current supply Yes
35 12V direct current supply
between terminals 1 and 2
Ye s
No current supply No
WIIA0291E
4 - Ground: Continuity should exist.
LIIA1567E
Revision: April 20092010 QX56

PWC-48
< COMPONENT DIAGNOSIS >
REAR POWER VENT WINDOW RELAY (OPEN) CHECK
1. Disconnect rear power vent window switch.
2. Check continuity between rear power vent window relay (OPEN)connector M87 terminal 2 and rear power vent window switch
connector M95 terminal 3.
Is the inspection result normal?
YES >> Replace rear power vent window switch.
NO >> Repair or replace harness. 2 - 3
: Continuity should exist.
LIIA1568E
Revision: April 20092010 QX56

REAR POWER VENT WINDOW RELAY (CLOSE) CHECKPWC-49
< COMPONENT DIAGNOSIS >
C
DE
F
G H
I
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M A
B
PWC
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O P
REAR POWER VENT WINDOW RELAY (CLOSE) CHECK
DescriptionINFOID:0000000005147234
Rear power vent windows OPEN/CLOSE by receiving the signal from rear power vent window switch.
Diagnosis ProcedureINFOID:0000000005147235
Regarding Wiring Diagram information, refer to PWC-53, "Wiring Diagram".
1.CHECK REAR POWER VENT WINDOW RELAY (CLOSE) POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power vent window relay (CLOSE).
3. Turn ignition switch ON.
4. Check voltage between rear power vent window relay (CLOSE) connector and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace harness.
2.CHECK REAR POWER VENT WINDOW RELAY (CLOSE)
Check continuity between rear pow er vent window relay (CLOSE)
terminals 3 and 4, 3 and 5.
Is the inspection result normal?
YES >> GO TO 3
NO >> Replace rear power vent window relay (CLOSE).
3.CHECK REAR POWER VENT WINDOW RELAY (CLOSE) GROUND CIRCUIT
Check continuity between rear pow er vent window relay (CLOSE)
connector M89 terminal 4 and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace harness.
4.CHECK REAR POWER VENT WI NDOW RELAY (CLOSE) CIRCUIT
ConnectorTe r m i n a l s
Voltage (V)
(Approx.)
(+) (-)
M89 1
Ground Battery voltage
5
LIIA1565E
Terminals Condition Continuity
34 12V direct current supply
between terminals 1 and 2
No
No current supply Yes
35 12V direct current supply
between terminals 1 and 2
Ye s
No current supply No
WIIA0291E
4 - Ground: Continuity should exist.
LIIA1567E
Revision: April 20092010 QX56

PWC-50
< COMPONENT DIAGNOSIS >
REAR POWER VENT WINDOW RELAY (CLOSE) CHECK
1. Disconnect rear power vent window switch.
2. Check continuity between rear power vent window relay
(CLOSE) connector M89 terminal 2 and rear power vent window
switch M95 terminal 4.
Is the inspection result normal?
YES >> Replace rear power vent window switch.
NO >> Repair or replace harness. 2 - 4
: Continuity should exist.
LIIA1569E
Revision: April 20092010 QX56

POWER WINDOW MAIN SWITCHPWC-51
< ECU DIAGNOSIS >
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M A
B
PWC
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ECU DIAGNOSIS
POWER WINDOW MAIN SWITCH
Reference Value INFOID:0000000005147240
TERMINAL LAYOUT
PHYSICAL VALUES
MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH
LIIA2455E
Te r m i n a l N o . (Wire color) Description
ConditionVoltage [V]
(Approx.)
+ – Signal name Input/
Output
2
(W/B) Ground Encoder ground
—— 0
4
(L) Ground
Door key cylinder switch LH
LOCK signal Input
Key position
(Neutral
→ Locked) 5
→ 0
6
(R) Ground Door key cylinder switch LH
UNLOCK signal InputKey position
(Neutral
→ Unlocked) 5
→ 0
8
(G/R) 11Front door power window mo-
tor LH UP signal OutputWhen front LH switch in
power window main switch
is operated UP. Battery voltage
9
(O) 2 Encoder pulse signal 2 Input When power window mo-
tor operates.
10
(W/L) Ground RAP signal
InputIGN SW ON
Battery voltage
Within 45 second after ig-
nition switch is turned to
OFF. Battery voltage
When front LH or RH door
is opened during retained
power operation. 0
11
(G/W) 8
Front door power window mo-
tor LH DOWN signal OutputWhen front LH switch in
power window main switch
is operated DOWN. Battery voltage
JMKIA0070GB
Revision: April 20092010 QX56

PWC-52
< ECU DIAGNOSIS >
POWER WINDOW MAIN SWITCH
13
(G/Y) 2 Encoder pulse signal 1 Input When power window mo-
tor operates.
14
(LG/W) Ground Power window serial link Input/
Output IGN SW ON or power win-
dow timer operating.
15
(BR) Ground Encoder power supply Output When ignition switch ON or
power window timer oper-
ates.10
17
(B) Ground Ground
—— 0
19
(W/R) Ground Battery power supply
Input— Battery voltage
Te r m i n a l N o .
(Wire color) Description
ConditionVoltage [V]
(Approx.)
+ – Signal name Input/
Output
JMKIA0070GB
JPMIA0013GB
Revision: April 20092010 QX56

POWER WINDOW MAIN SWITCHPWC-53
< ECU DIAGNOSIS >
C
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F
G H
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M A
B
PWC
N
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Wiring DiagramINFOID:0000000005147241
ABKWA0485GB
Revision: April 20092010 QX56

PWC-54
< ECU DIAGNOSIS >
POWER WINDOW MAIN SWITCH
ABKWA0453GB
Revision: April 20092010 QX56

POWER WINDOW MAIN SWITCHPWC-55
< ECU DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
ABKIA1340GB
Revision: April 20092010 QX56