turn signal INFINITI QX56 2011 Factory Service Manual

SYSTEMPWC-9
< SYSTEM DESCRIPTION >
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The signal mentioned below is transmitted from BCM to power window main \
switch, front power window
switch (passenger side) and rear power window switch LH/RH.
 Keyless power window down signal
 Door switch signal
The signal mentioned below is transmitted from power window main switch to front power window switch (pas-
senger side) and rear power window switch LH/RH.
 Front passenger side door window and rear door window operation signal
 Power window control by door key cylinder switch signal
 Power window lock switch signal
 Retained power operation signal
RETAINED POWER OPERATION
 Retained power operation is an additional power supply function that enables power window system to oper-
ate during the 45 seconds even when ignition switch is turned OFF.
Retained Power Function Cancel Conditions
 Front door CLOSE (door switch OFF) →OPEN (door switch ON).
 When ignition switch is ON again.
 When timer time passes. (45 seconds)
POWER WINDOW LOCK FUNCTION
Ground circuit inside power window main switch shuts off when power window lock switch is ON. This inhibits
power window switch operation except with the power window main switch.
ANTI-PINCH OPERATION
 Anti-pinch foreign lowers door glass 150 mm (5.9 in) when foreign material is pinched in door glass during
AUTO-UP operation.
 Encoder continues detecting the movement of power window motor and output the encoder pulse signal to
power window switch l while power window motor is operating.
 Resistance is applied to the power window motor ro tation that changes the frequency of encoder pulse sig-
nal if foreign material is trapped in the door glass.
 Power window switch controls to lower the door glass for 150 mm (5.9 in) after it detects encoder pulse sig-
nal frequency change.
Operation Condition
When all door glass AUTO-UP operation is performed ( anti-pinch function does not operate just before the
door glass closes and is fully closed)
NOTE:
Depending on environment and driving conditions, if a similar impact or load is applied to the door glass, it
may lower.
DOOR KEY CYLINDER SWITCH OPERATION
Hold the door key cylinder to the LOCK or UNLOCK direct ion for 1.5 seconds or more to OPEN or CLOSE all
power windows when ignition switch is OFF. In addition, it stops when key position is moved to NEUTRAL
when operating.
Operation Condition
 Ignition switch OFF.
 Hold door key cylinder to LOCK position for 1.5 se conds or more to perform CLOSE operation of the door
glass.
 Hold door key cylinder to UNLOCK position for 1.5 se conds or more to perform OPEN operation of the door
glass.
KEYLESS POWER WINDOW DOWN FUNCTION
All power windows open when the unlock button on Intelligent Key is activated and kept pressed for more than
3 seconds with the ignition switch OFF. The wi ndows keep opening if the unlock button is continuously
pressed.
The power window opening stops when the following operations are performed.
 When the unlock button is kept pressed more than 15 seconds.
 When the ignition switch is turned ON while the power window opening is operated.
 When the unlock button is released.
While retained power operation activate, keyless power window down function cannot be operated.
Revision: 2010 May2011 QX56

DIAGNOSIS SYSTEM (BCM)PWC-11
< SYSTEM DESCRIPTION >
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DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Fu nction (BCM - COMMON ITEM)INFOID:0000000006217269
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.
×: Applicable item
*: This item is indicated, but not used.
FREEZE FRAME DATA (FFD)
The BCM records the following vehicle condition at the time a particular DTC is detected, and displays on
CONSULT-III.
Diagnosis mode Function Description
Work Support Changes the setting for each system function.
Self Diagnostic Result Displays the diagnosis results judged by BCM. Refer to BCS-57, "
DTCIndex".
CAN Diag Support Monitor Monitors the reception status of CAN communication viewed from BCM. Refer to CONSULT-III opera-
tion manual.
Data Monitor The BCM input/output signals are displayed.
Active Test The signals used to activate each device are forcibly supplied from BCM.
Ecu Identification The BCM part number is displayed.
Configuration  Read and save the vehicle specification.
 Write the vehicle specification when replacing BCM.
System Sub system selection item Diagnosis mode
Work Support Data Monitor Active Test
Door lock DOOR LOCK ×××
Rear window defo gger REAR DEFOGGER ××
Warning chime BUZZER ××
Interior room lamp timer INT LAMP ×××
Exterior lamp HEAD LAMP ×××
Wiper and washer WIPER ×××
Turn signal and hazard warning lamps FLASHER ×××
— AIR CONDITONER* ××
 Intelligent Key system
 Engine start system INTELLIGENT KEY
×××
Combination switch COMB SW ×
Body control system BCM ×
NATS IMMU ×××
Interior room lamp battery saver BATTERY SAVER ×××
Back door TRUNK ×
Vehicle security system THEFT ALM ×××
RAP system RETAINED PWR ×
Signal buffer system SIGNAL BUFFER ××
Revision: 2010 May2011 QX56

PWC-14
< ECU DIAGNOSIS INFORMATION >
POWER WINDOW MAIN SWITCH
POWER WINDOW MAIN SWITCH
Reference Value INFOID:0000000006217272
TERMINAL LAYOUT
PHYSICAL VALUES
POWER WINDOW MAIN 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
(R) Ground Door key cylinder switch
LOCK signal
InputKey position
(Neutral
→Locked) 5
→ 0
6
(W) Ground
Door key cylinder switch UN-
LOCK signal Input
Key position
(Neutral
→Unlocked) 5
→ 0
8
(L) Ground Front driver side power win-
dow motor UP signal
OutputWhen front LH switch in
power window main
switch is
operated UP 12
9
(G/W) Ground Encoder pulse signal 2 Input When power window mo-
tor operates.
10
(Y) Ground Retained power signal Input IGN SW ON 12
Within 45 second after ig-
nition switch is turned to
OFF
12
When driver side or pas-
senger side door is
opened during retained
power operation 0
11
(G) Ground
Front driver side power win-
dow motor DOWN signal OutputWhen front LH switch in
power window main
switch is
operated DOWN 12
JMKIA0070GB
Revision: 2010 May2011 QX56

POWER WINDOW MOTORPWC-39
< DTC/CIRCUIT DIAGNOSIS >
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POWER WINDOW MOTOR
DRIVER SIDE
DRIVER SIDE : Componen t Function CheckINFOID:0000000006217293
1.CHECK POWER WINDOW MOTOR CIRCUIT
Check front power window motor (driver side) operation with power window main switch.
Is the inspection result normal?
YES >> Front power window motor (driver side) is OK.
NO >> Refer to PWC-39, "
DRIVER SIDE : Diagnosis Procedure".
DRIVER SIDE : Diag nosis ProcedureINFOID:0000000006217294
1.CHECK FRONT POWER WINDOW MOTOR INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect front power window motor (driver side) connector.
3. Turn ignition switch ON.
4. Check voltage between front power window motor (driver side) harness connector and ground.
Is the inspection result normal?
YES >> Replace front power window motor (driver side). Refer to GW-21, "Removal and Installation".
NO >> GO TO 2.
2.CHECK POWER WINDOW MOTOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect power window main switch connector.
3. Check continuity between power window main s witch harness connector and front power window motor
(driver side) harness connector.
4. Check continuity between power window main switch harness connector and ground.
Is the inspection result normal?
YES >> Replace power window main switch. Refer to PWC-74, "Removal and Installation".
NO >> Repair or replace harness.
PASSENGER SIDE
(+)
(–) Condition Voltage (V)
(Approx.)
Front power window
motor (driver side)
Connector Terminal
D7 3
Ground Power window main switch UP 12
DOWN 0
1 UP 0
DOWN 12
Power window main switch
Front power window motor
(driver side) Continuity
Connector Terminal Connector Terminal
D5 8
D7 3
Existed
11 1
Power window main switch GroundContinuity
Connector Terminal
D5 8
Not existed
11
Revision: 2010 May2011 QX56

PWC-40
< DTC/CIRCUIT DIAGNOSIS >
POWER WINDOW MOTOR
PASSENGER SIDE : Component Function Check
INFOID:0000000006217295
1. CHECK POWER WINDOW MOTOR CIRCUIT
Check front power window motor (passenger side) operat ion with power window main switch or front power
window switch (passenger side).
Is the inspection result normal?
YES >> Front power window motor (passenger side) is OK.
NO >> Refer to PWC-40, "
PASSENGER SIDE : Diagnosis Procedure".
PASSENGER SIDE : Diagnosis ProcedureINFOID:0000000006217296
1.CHECK FRONT POWER WINDOW MOTOR INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect front power window motor (passenger side) connector.
3. Turn ignition switch ON.
4. Check voltage between front power window motor (passenger side) harness connector and ground.
Is the inspection result normal?
YES >> Replace front power window motor (passenger side). Refer to GW-21, "Removal and Installa-
tion".
NO >> GO TO 2.
2.CHECK POWER WINDOW MOTOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front power window switch (passenger side) connector.
3. Check continuity between front power window swit ch (passenger side) harness connector and front power
window motor (passenger side) harness connector.
4. Check continuity between front power window switch (passenger side) connector and ground.
Is the inspection result normal?
YES >> Replace front power window switch (passenger side). Refer to PWC-74, "Removal and Installa-
tion".
NO >> Repair or replace harness.
REAR LH
(+)
(–) Condition Voltage (V)
(Approx.)
Front power window motor
(passenger side)
Connector Terminal
D27 3
GroundFront power window switch
(passenger side) UP 12
DOWN 0
1 UP 0
DOWN 12
Front power window switch (passenger side) Front power window motor (passenger side)
Continuity
Connector Terminal Connector Terminal
D25 8
D27 3
Existed
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Front power window switch (passenger side) GroundContinuity
Connector Terminal
D25 8
Not existed
9
Revision: 2010 May2011 QX56

POWER WINDOW MOTORPWC-41
< DTC/CIRCUIT DIAGNOSIS >
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REAR LH : Component Function CheckINFOID:0000000006217297
1.CHECK POWER WINDOW MOTOR CIRCUIT
Check rear power window motor LH operation with power window main switch or rear power window switch
LH.
Is the inspection result normal?
YES >> Rear power window motor LH is OK.
NO >> Refer to PWC-41, "
REAR LH : Diagnosis Procedure".
REAR LH : Diagnosis ProcedureINFOID:0000000006217298
1.CHECK REAR POWER WINDOW MOTOR INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect rear power window motor LH connector.
3. Turn ignition switch ON.
4. Check voltage between rear power window motor LH harness connector and ground.
Is the inspection result normal?
YES >> Replace rear power window motor LH. Refer to GW-26, "Removal and Installation".
NO >> GO TO 2.
2.CHECK POWER WINDOW MOTOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power window switch LH connector.
3. Check continuity between rear power window swit ch LH harness connector and rear power window motor
LH harness connector.
4. Check continuity between rear power window switch LH harness connector and ground.
Is the inspection result normal?
YES >> Replace rear power window switch LH. Refer to PWC-74, "Removal and Installation".
NO >> Repair or replace harness.
REAR RH
REAR RH : Componen t Function CheckINFOID:0000000006217299
1. CHECK POWER WINDOW MOTOR CIRCUIT
(+)
(–) Condition Voltage (V)
(Approx.)
Rear power window motor LH
Connector Terminal
D67 1
Ground Rear power window switch LH UP 12
DOWN 0
3 UP 0
DOWN 12
Rear power window switch LH Rear power window motor LH
Continuity
Connector Terminal Connector Terminal
D63 8
D67 1
Existed
93
Rear power window switch LH GroundContinuity
Connector Terminal
D63 8
Not existed
9
Revision: 2010 May2011 QX56

PWC-42
< DTC/CIRCUIT DIAGNOSIS >
POWER WINDOW MOTOR
Check rear power window motor RH operation with power window main switch or rear power window switch
RH.
Is the inspection result normal?
YES >> Rear power window motor RH is OK.
NO >> Refer to PWC-42, "
REAR RH : Diagnosis Procedure".
REAR RH : Diagnosis ProcedureINFOID:0000000006217300
1.CHECK REAR POWER WINDOW MOTOR INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect rear power window motor RH connector.
3. Turn ignition switch ON.
4. Check voltage between rear power window motor RH harness connector and ground.
Is the inspection result normal?
YES >> Replace rear power window motor RH. Refer to GW-26, "Removal and Installation".
NO >> GO TO 2.
2.CHECK POWER WINDOW MOTOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power window switch RH connector.
3. Check continuity between rear power window swit ch RH harness connector and rear power window motor
RH harness connector.
4. Check continuity between rear power window switch RH harness connector and ground.
Is the inspection result normal?
YES >> Replace rear power window switch RH. Refer to PWC-74, "Removal and Installation".
NO >> Repair or replace harness.
(+)
(–) Condition Voltage (V)
(Approx.)
Rear power window motor RH
Connector Terminal
D47 1
Ground Rear power window switch RH UP 12
DOWN 0
3 UP 0
DOWN 12
Rear power window switch RH
Rear power window motor RH
Continuity
Connector Terminal Connector Terminal
D43 8
D47 1
Existed
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Rear power window switch RH GroundContinuity
Connector Terminal
D43 8
Not existed
9
Revision: 2010 May2011 QX56

ENCODERPWC-43
< DTC/CIRCUIT DIAGNOSIS >
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ENCODER
DRIVER SIDE
DRIVER SIDE : Componen t Function CheckINFOID:0000000006217301
1.CHECK ENCODER
Check that driver side door glass performs AUTO open/close operation normally by power window main
switch.
Is the inspection result normal?
YES >> Encoder is OK.
NO >> Refer to PWC-43, "
DRIVER SIDE : Diagnosis Procedure".
DRIVER SIDE : Diag nosis ProcedureINFOID:0000000006217302
1.CHECK ENCODER SIGNAL
1. Turn ignition switch ON.
2. Check signal between power window main switch harness connector and ground with oscilloscope.
Is the inspection result normal?
YES >> Replace power window main switch. Refer to PWC-74, "Removal and Installation".
NO >> GO TO 2.
2.CHECK ENCORDER SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect power window main switch connector and front power window motor (driver side) connector.
3. Check continuity between power window main s witch harness connector and front power window motor
(driver side) harness connector.
4. Check continuity between power window main switch harness connector and ground.
Signal name(+)
(–)Signal
(Reference value)
Power window main switch
Connector Terminal
Encoder signal 1 D513
Ground Refer to following signal
Encoder signal 2 9
JMKIA5210GB
Power window main switch Front power window motor
(driver side) Continuity
Connector Terminal Connector Terminal
D5 9
D7 6
Existed
13 5
Revision: 2010 May2011 QX56

ENCODERPWC-45
< DTC/CIRCUIT DIAGNOSIS >
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2. Check continuity between power window main s witch harness connector and front power window motor
(driver side) harness connector.
3. Check continuity between power window main switch harness connector and ground.
Is the inspection result normal?
YES >> Replace power window main switch. Refer to PWC-74, "Removal and Installation".
NO >> Repair or replace harness.
PASSENGER SIDE
PASSENGER SIDE : Comp onent Function CheckINFOID:0000000006217303
1.CHECK ENCODER
Check that passenger side door glass performs AUTO open/close operation normally by power window main
switch or front power window switch (passenger side).
Is the inspection result normal?
YES >> Encoder is OK.
NO >> Refer to PWC-45, "
PASSENGER SIDE : Diagnosis Procedure".
PASSENGER SIDE : Dia gnosis ProcedureINFOID:0000000006217304
1.CHECK ENCODER SIGNAL
1. Turn ignition switch ON.
2. Check signal between front power window switch (passenger side) harness connector and ground with oscilloscope.
Is the inspection result normal?
YES >> Replace front power window sw itch (passenger side). Refer to PWC-74, "Removal and Installa-
tion".
NO >> GO TO 2.
2.CHECK ENCORDER SIGNAL CIRCUIT
1. Turn ignition switch OFF.
Power window main switch Front power window motor (driver side)
Continuity
Connector Terminal Connector Terminal
D52D74Existed
Power window main switch GroundContinuity
Connector Terminal
D5 2 Not existed
Signal name (+)
(–)Signal
(Reference value)
Front power window switch (passenger side)
Connector Terminal
Encoder signal 1 D2512
Ground Refer to following signal
Encoder signal 2 15
JMKIA5210GB
Revision: 2010 May2011 QX56

ENCODERPWC-47
< DTC/CIRCUIT DIAGNOSIS >
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2. Check continuity between front power window motor (passenger side) harness connector and ground.
Is the inspection result normal?
YES >> Replace front power window motor (passenger side). Refer to GW-21, "Removal and Installation".
NO >> GO TO 6.
6.CHECK GROUND CIRCUIT 2
1. Disconnect front power window switch (passenger side) connector.
2. Check continuity between front power window swit ch (passenger side) harness connector and front power
window motor (passenger side) harness connector.
3. Check continuity between front power window switch (passenger side) harness connector and ground.
Is the inspection result normal?
YES >> Replace front power window sw itch (passenger side). Refer to PWC-74, "Removal and Installa-
tion".
NO >> Repair or replace harness.
REAR LH
REAR LH : Component Function CheckINFOID:0000000006217305
1.CHECK ENCODER OPERATION
Check that rear door LH glass performs AUTO open/cl ose operation normally by power window main switch or
rear power window switch LH.
Is the inspection result normal?
YES >> Encoder operation is OK.
NO >> Refer to PWC-47, "
REAR LH : Diagnosis Procedure".
REAR LH : Diagnosis ProcedureINFOID:0000000006217306
1.CHECK ENCODER SIGNAL
1. Turn ignition switch ON.
2. Check signal between rear power window switch LH harness connector and ground with oscilloscope.
Front power window motor (passenger side)
GroundContinuity
Connector Terminal
D27 4 Existed
Front power window switch (passenger side) Front power window motor (passenger side) Continuity
Connector Terminal Connector Terminal
D253D274Existed
Front power window switch (passenger side) GroundContinuity
Connector Terminal
D25 3 Not existed
Signal name (+)
(–)Signal
(Reference value)
Rear power window switch LH
Connector Terminal
Encoder signal 1 D6312
Ground Refer to following signal
Encoder signal 2 15
Revision: 2010 May2011 QX56