Infiniti G37 Coupe. Manual — part 1034
POWER WINDOW SUB-SWITCH
PWC-77
< ECU DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
PWC
N
O
P
JCKWA0655GB
PWC-78
< ECU DIAGNOSIS >
POWER WINDOW SUB-SWITCH
Fail Safe
INFOID:0000000001694048
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 when error beyond regulation value is detected between
the fully closed position and the actual position of the glass.
JCKWA0656GB
POWER WINDOW SUB-SWITCH
PWC-79
< ECU DIAGNOSIS >
C
D
E
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
• Automatic window adjusting 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 malfunc-
tion
When the pulse signal that is detected during glass open/close operation detects the opposite con-
dition 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 opera-
tion.
Malfunction of not yet up-
dated closed position of
glass
When glass open/close operation is continuously performed without fully closing more than the spec-
ified value (approximately 10 strokes).
PWC-80
< SYMPTOM DIAGNOSIS >
NONE OF THE POWER WINDOWS CAN BE OPERATED USING ANY SWITCH
SYMPTOM DIAGNOSIS
NONE OF THE POWER WINDOWS CAN BE OPERATED USING ANY
SWITCH
Diagnosis Procedure
INFOID:0000000001694052
1.
CHECK BCM POWER SUPPLY AND GROUND CIRCUIT
Check BCM power supply and ground circuit.
Refer to
PWC-12, "BCM : Diagnosis Procedure"
.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace the malfunctioning parts.
2.
CHECK POWER WINDOW MAIN SWITCH POWER SUPPLY AND GROUND CIRCUIT
Check power window switch power supply and ground circuit.
Refer to
PWC-12, "POWER WINDOW MAIN SWITCH : Diagnosis Procedure"
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace the malfunctioning parts.
3.
CHECK POWER WINDOW MAIN SWITCH SERIAL LINK CIRCUIT
Check power window serial link circuit.
Refer to
PWC-30, "POWER WINDOW MAIN SWITCH : Component Function Check"
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace the malfunctioning parts.
4.
CONFIRM THE OPERATION
Confirm the operation again.
Is the result normal?
YES
>> Check intermittent incident. Refer to
GI-38, "Intermittent Incident"
.
NO
>> GO TO 1.
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