2011 INFINITI QX56 door

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 MAIN SWITCHPWC-15
< ECU DIAGNOSIS INFORMATION >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
Fail-safeINFOID:0000000006217273
FAIL-SAFE CONTROL
Switches to fail-safe control when malfunction is detected in encoder signal that detects up/down speed and
direction of door glass. Switches to fail-safe control w hen a signal that is out of the specified value is detected
between the fully closed position and the actual position of the glass.
If fail-safe control, the system changes to a non-in itialized condition and the following function do not operate.
 Auto-up operation
 Anti-pinch function
 Retained power function
When fail-safe control is activated, perform initialization procedure to recover. If a malfunction is detected in
power window switch or more, fail-safe control is activated again.
13
(G/Y) Ground Encoder pulse signal 1 Input When power window mo-
tor operates.
14
(V) Ground Power window serial link Input/
Output IGN SW ON or power win-
dow timer operating.
15
(G/R) Ground Encoder power supply Output When ignition switch ON
or power window timer op-
erates.12
17
(B) Ground Ground — — 0
19
(W) Ground Battery power supply Input — 12
Te r m i n a l N o .
(wire color) Description
ConditionVoltage [V]
(Approx.)
+ - Signal name Input/
Output
JMKIA0070GB
JPMIA0013GB
Malfunction Malfunction condition
Pulse sensor malfunction When one pulse signal that is the specified value or more is detected continuously for the specified
time or more, while door glass is being operated UP or DOWN.
Both pulse sensors mal-
function When both pulse signals are not detected continuously for the specified time or more, while door
glass is being operated UP or DOWN.
Pulse direction malfunc-
tion When a pulse signal indicating that window is moving in the opposite direction against the power win-
dow motor is detected for the specified value or more, while door glass is being operated UP or
DOWN.
Glass recognition position
malfunction 1 When the actual door glass position that is out of specified value is detected compared to the door
glass fully closed position memorized in module, while door glass is being operated UP or DOWN.
Glass recognition position
malfunction 2 When pulse count that is out of the door glass full stroke value or more is detected, while door glass
is being operated UP or DOWN.
Revision: 2010 May2011 QX56

FRONT POWER WINDOW SWITCH (PASSENGER SIDE)PWC-17
< ECU DIAGNOSIS INFORMATION >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
Fail-safeINFOID:0000000006217275
FAIL-SAFE CONTROL
Switches to fail-safe control when malfunction is detected in encoder signal that detects up/down speed and
direction of door glass. Switches to fail-safe control w hen a signal that is out of the specified value is detected
between the fully closed position and the actual position of the glass.
If fail-safe control, the system changes to a non-in itialized condition and the following function do not operate.
 Auto-up operation
 Anti-pinch function
 Retained power function
When fail-safe control is activated, perform initialization procedure to recover. If a malfunction is detected in
power window switch or more, fail-safe control is activated again.
15
(G/W) Ground Encoder pulse signal 2 Input When power window motor
operates
16
(V) Ground Power window serial link Input/
Output When ignition switch ON or
power window timer operates
Te r m i n a l N o .
(wire color) Description
ConditionVoltage [V]
(Approx.)
+ - Signal name Input/
Output
JMKIA0070GB
JPMIA0013GB
Malfunction Malfunction condition
Pulse sensor malfunction When one pulse signal that is the specified value or more is detected continuously for the specified
time or more, while door glass is being operated UP or DOWN.
Both pulse sensors mal-
function When both pulse signals are not detected continuously for the specified time or more, while door
glass is being operated UP or DOWN.
Pulse direction malfunc-
tion When a pulse signal indicating that window is moving in the opposite direction against the power win-
dow motor is detected for the specified value or more, while door glass is being operated UP or
DOWN.
Glass recognition position
malfunction 1 When the actual door glass position that is out of specified value is detected compared to the door
glass fully closed position memorized in module, while door glass is being operated UP or DOWN.
Glass recognition position
malfunction 2 When pulse count that is out of the door glass full stroke value or more is detected, while door glass
is being operated UP or DOWN.
Revision: 2010 May2011 QX56

REAR POWER WINDOW SWITCH LHPWC-19
< ECU DIAGNOSIS INFORMATION >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
Fail-safeINFOID:0000000006217277
FAIL-SAFE CONTROL
Switches to fail-safe control when malfunction is detected in encoder signal that detects up/down speed and
direction of door glass. Switches to fail-safe control w hen a signal that is out of the specified value is detected
between the fully closed position and the actual position of the glass.
If fail-safe control, the system changes to a non-in itialized condition and the following function do not operate.
 Auto-up operation
 Anti-pinch function
 Retained power function
When fail-safe control is activated, perform initialization procedure to recover. If a malfunction is detected in
power window switch or more, fail-safe control is activated again.
15
(L) Ground Encoder pulse signal 2 Input When power window motor oper-
ates.
16
(V) Ground Power window serial link Input/
Output When ignition switch ON or pow-
er window timer operates
Te r m i n a l N o .
(wire color) Description
ConditionVoltage [V]
(Approx.)
+ - Signal name Input/
Output
JMKIA0070GB
JPMIA0013GB
Malfunction Malfunction condition
Pulse sensor malfunction When one pulse signal that is the specified value or more is detected continuously for the specified
time or more, while door glass is being operated UP or DOWN.
Both pulse sensors mal-
function When both pulse signals are not detected continuously for the specified time or more, while door
glass is being operated UP or DOWN.
Pulse direction malfunc-
tion When a pulse signal indicating that window is moving in the opposite direction against the power win-
dow motor is detected for the specified value or more, while door glass is being operated UP or
DOWN.
Glass recognition position
malfunction 1 When the actual door glass position that is out of specified value is detected compared to the door
glass fully closed position memorized in module, while door glass is being operated UP or DOWN.
Glass recognition position
malfunction 2 When pulse count that is out of the door glass full stroke value or more is detected, while door glass
is being operated UP or DOWN.
Revision: 2010 May2011 QX56

REAR POWER WINDOW SWITCH RHPWC-21
< ECU DIAGNOSIS INFORMATION >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
Fail-safeINFOID:0000000006217279
FAIL-SAFE CONTROL
Switches to fail-safe control when malfunction is detected in encoder signal that detects up/down speed and
direction of door glass. Switches to fail-safe control w hen a signal that is out of the specified value is detected
between the fully closed position and the actual position of the glass.
If fail-safe control, the system changes to a non-in itialized condition and the following function do not operate.
 Auto-up operation
 Anti-pinch function
 Retained power function
When fail-safe control is activated, perform initialization procedure to recover. If a malfunction is detected in
power window switch or more, fail-safe control is activated again.
15
(G) Ground Encoder pulse signal 2 Input When power window motor oper-
ates.
16
(V) Ground Power window serial link Input/
Output When ignition switch ON or pow-
er window timer operates
Te r m i n a l N o .
(wire color) Description
ConditionVoltage [V]
(Approx.)
+ - Signal name Input/
Output
JMKIA0070GB
JPMIA0013GB
Malfunction Malfunction condition
Pulse sensor malfunction When one pulse signal that is the specified value or more is detected continuously for the specified
time or more, while door glass is being operated UP or DOWN.
Both pulse sensors mal-
function When both pulse signals are not detected continuously for the specified time or more, while door
glass is being operated UP or DOWN.
Pulse direction malfunc-
tion When a pulse signal indicating that window is moving in the opposite direction against the power win-
dow motor is detected for the specified value or more, while door glass is being operated UP or
DOWN.
Glass recognition position
malfunction 1 When the actual door glass position that is out of specified value is detected compared to the door
glass fully closed position memorized in module, while door glass is being operated UP or DOWN.
Glass recognition position
malfunction 2 When pulse count that is out of the door glass full stroke value or more is detected, while door glass
is being operated UP or DOWN.
Revision: 2010 May2011 QX56

SYSTEM INITIALIZATIONPWC-33
< BASIC INSPECTION >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
SYSTEM INITIALIZATION
DescriptionINFOID:0000000006274850
If any of the following operations are performed, the in itialization is necessary for normal operation of power
window system.
 When control unit replaced.
 Electric power supply to power window switch or motor is interrupted by blown fuse or disconnection and
connection of the negative terminal of battery, etc.
 Removal and installation of regulator assembly.
 Power supply to the power window main switch or power window motor is cut off by the removal
of battery terminal or if the battery fuse is blown.
 Disconnection and connection of power window main switch harness connector.
 Removal and installation of motor from regulator assembly.
 Operation of regulator assembly as an independent unit.
 Removal and installation of door glass.
 Removal and installation of door glass run.
The following specified operations can not be performed under the non-initialized condition.
 Auto-up operation
 Anti-pinch function
Work ProcedureINFOID:0000000006274851
1.STEP 1
1. Turn ignition switch ON.
2. Operate power window switch to fully open the wi ndow. (This operation is unnecessary if the window is
already fully open)
3. Continue pulling the power window switch UP (AUTO-UP operation). Even after glass stops at fully closed
position, keep pulling the switch for 2 seconds or more.
4. Check that AUTO-UP function operates normally.
>> GO TO 2.
2.STEP 2
Check anti-pinch function. Refer to PWC-34, "
Work Procedure".
>> END
Revision: 2010 May2011 QX56

PWC-34
< BASIC INSPECTION >
CHECK ANTI-PINCH FUNCTION
CHECK ANTI-PINCH FUNCTION
DescriptionINFOID:0000000006274852
If any of the following operations are performed, the initialization is necessary for normal operation of anti-
pinch function.
 When control unit replaced.
 Electric power supply to power window switch or mo tor is interrupted by blown fuse or disconnection and
connection of the negative terminal of battery, etc.
 Removal and installation of regulator assembly.
 Power supply to the power window main switch or power window motor is cut off by the removal
of battery terminal or if the battery fuse is blown.
 Disconnection and connection of power window main switch harness connector.
 Removal and installation of motor from regulator assembly.
 Operation of regulator assembly as an independent unit.
 Removal and installation of door glass.
 Removal and installation of door glass run.
The following specified operations can not be performed under the non-initialized condition.
 Auto-up operation
 Anti-pinch function
Work ProcedureINFOID:0000000006274853
1.CHECK ANTI-PINCH FUNCTION
 Fully open the door window.
 Place a piece of wood near fully closed position.
 Close door glass completely with AUTO-UP.
 Check the following conditions
- Check that glass lowers for approximately 150 mm (5.9 in) without pinching piece of wood and stops.
- Check that glass does not rise not when operating the power window main switch while lowering. CAUTION:
 Perform initial setting when AUTO-UP operation or anti-pinch function does not operate normally.
 Check that AUTO-UP operates before inspectio n when system initialization is performed.
 Do not check with hands and other body parts b ecause they may be pinched. Do not get pinched.
>> END
Revision: 2010 May2011 QX56

ENCODERPWC-43
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
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