ECU INFINITI QX56 2008 Factory Service Manual

PWC-78
< ECU DIAGNOSIS >
POWER WINDOW MAIN SWITCH
Fail Safe
INFOID:0000000001735739
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 cont rol when error beyond regulation value is detected between
the fully closed position and the actual position of the glass.
AAKIA0239GB
Revision: March 2010 2008 QX56

POWER WINDOW MAIN SWITCHPWC-79
< ECU DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
It changes to condition before initialization and the following functions do not operate when switched to fail-
safe control.
• Auto-up operation
• Anti-pinch function
• Retained power function
Perform initial operation to recover when switched to fail- safe mode. However, it switches back to fail-safe
control when malfunction is found in power window switch or in motor.
Error Error condition
Pulse sensor malfunction When only one side of pulse signal is being detected for more than the specified value.
Both pulse sensors mal-
function When both pulse signals have not been detected for more than the specified value during glass open/
close operation.
Pulse direction malfunction When the pulse signal that is detected during glass open/close operation detects the opposite condition
of power window motor operating direction.
Glass recognition position
malfunction 1 When it detects the error between glass fully closed position in power window switch memory and actual
fully closed position during glass open/close operation is more than the specified value.
Glass recognition position
malfunction 2 When it detects pulse count more than the value of glass full stroke during glass open/close operation.
Malfunction of not yet up-
dated closed position of
glass When glass open/close operation is continuously performed without fully closing more than the specified
value (approximate
ly 10 strokes).
Revision: March 2010 2008 QX56

PWC-80
< ECU DIAGNOSIS >
FRONT POWER WINDOW SWITCH
FRONT POWER WINDOW SWITCH
Reference Value INFOID:0000000001735740
TERMINAL LAYOUT
PHYSICAL VALUES
POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH RH
LIIA2454E
Te r m i n a l N o .(Wire color) Description
ConditionVoltage [V]
(Approx.)
+ – Signal nameInput/
Output
3
(W/B) Ground Encoder ground
—— 0
4
(G/R) Ground Encoder power supply Output When ignition switch ON or
power window timer operates
10
8
(L) 9
Power window motor
UP signal Output
When power window motor is
UP at operated. Battery voltage
9
(G) 8Power window motor
DOWN signal OutputWhen power window motor is
DOWN at operated. Battery voltage
10
(W/R) Ground Battery power supply Input
—Battery voltage
11
(B) Ground Ground
—— 0
12
(G/Y) 3 Encoder pulse signal 1 Input When power window motor op-
erates.
JMKIA0070GB
Revision: March 2010
2008 QX56

FRONT POWER WINDOW SWITCHPWC-81
< ECU DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
15
(G/W) 3 Encoder pulse signal 2 Input When power window motor op-
erates.
16
(LG/W) Ground Power window serial link Input/
Output IGN SW ON or power window
timer operating.
Te r m i n a l N o .
(Wire color) Description
ConditionVoltage [V]
(Approx.)
+ – Signal nameInput/
Output
JMKIA0070GB
JPMIA0013GB
Revision: March 2010 2008 QX56

PWC-82
< ECU DIAGNOSIS >
FRONT POWER WINDOW SWITCH
Wiring Diagram
INFOID:0000000004874970
AWKWA0013GB
Revision: March 2010 2008 QX56

FRONT POWER WINDOW SWITCHPWC-83
< ECU DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
ALKWA0122GB
Revision: March 2010 2008 QX56

PWC-84
< ECU DIAGNOSIS >
FRONT POWER WINDOW SWITCH
AWKIA0115GB
Revision: March 20102008 QX56

FRONT POWER WINDOW SWITCHPWC-85
< ECU DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
AWKIA0116GB
Revision: March 2010 2008 QX56

PWC-86
< ECU DIAGNOSIS >
FRONT POWER WINDOW SWITCH
AAKIA0232GB
Revision: March 20102008 QX56

FRONT POWER WINDOW SWITCHPWC-87
< ECU DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
AAKIA0233GB
Revision: March 2010 2008 QX56