Infiniti M35/M45 Y50. Manual — part 1154
FRONT WIPER AND WASHER SYSTEM
WW-21
C
D
E
F
G
H
I
J
L
M
A
B
WW
33
GR
Combination
switch output 4
ON
Lighting, turn, wiper
OFF
(Wiper dial position 4)
Any of several con-
ditions below
●
Wiper dial position 1
●
Wiper dial position 5
●
Wiper dial position 6
Approx. 1.2 V
OFF
(Wiper dial position 4)
Approx. 7.0 - 7.5 V
34
L
Combination
switch output 3
ON
Lighting, turn, wiper
OFF
Any of several con-
ditions below
●
Wiper dial position 1
●
Wiper dial position 2
●
Wiper dial position 3
Approx. 1.2 V
OFF
(Wiper dial position 4)
Approx. 7.0 - 7.5 V
35
SB
Combination
switch output 2
ON
Lighting, turn, wiper
OFF
(Wiper dial position 4)
Any of several con-
ditions below
●
Front wiper switch INT
●
Front wiper switch HI
Approx. 1.2 V
OFF
Approx. 7.0 - 7.5 V
Terminal
No.
Wire
color
Signal name
Measuring condition
Reference value
Ignition
switch
Operation or condition
PKIB4958J
PKIB4960J
PKIB4958J
PKIB4960J
PKIB4958J
PKIB4960J
WW-22
FRONT WIPER AND WASHER SYSTEM
36
V
Combination
switch output 1
ON
Lighting, turn, wiper
OFF
(Wiper dial position 4)
Any of several con-
ditions below
●
Front wiper switch
MIST
●
Front wiper switch LO
●
Front washer switch
Approx. 1.2 V
OFF
(Wiper dial position 4)
Approx. 7.0 - 7.5 V
38
W
Ignition switch
(ON)
ON
—
Battery voltage
39
L
CAN-H
—
—
—
40
P
CAN-L
—
—
—
42
P
Battery power
supply
OFF
—
Battery voltage
52
B
Ground
ON
—
Approx. 0 V
55
W
Battery power
supply
OFF
—
Battery voltage
Terminal
No.
Wire
color
Signal name
Measuring condition
Reference value
Ignition
switch
Operation or condition
PKIB4958J
PKIB4960J
FRONT WIPER AND WASHER SYSTEM
WW-23
C
D
E
F
G
H
I
J
L
M
A
B
WW
Terminals and Reference Values for IPDM E/R
NKS003WI
NOTE:
●
During LO operation, terminal No. 32 detects front wiper motor stopping or moving by front wiper auto stop signal.
●
During HI operation, terminal No. 32 detects front wiper motor stopping or moving by front wiper auto stop signal that is output from
terminal No. 44 (not from terminal No. 32).
How to Perform Trouble Diagnoses
NKS003WJ
1.
Confirm the symptoms and customer complaint.
2.
Understand operation description and function description. Refer to
.
3.
Perform the Preliminary Check. Refer to
.
4.
Check symptom and repair or replace the cause of malfunction.
5.
Does the front wiper and washer operate normally? If YES, GO TO 6. If NO, GO TO 4.
6.
INSPECTION END
Terminal
No.
Wire
color
Signal name
Measuring condition
Reference value
Ignition
switch
Operation or condition
19
O
High speed signal
ON
—
Battery voltage
23
V
Low speed signal
ON
Wiper switch
OFF
Approx. 0 V
LO
Battery voltage
31
L/B
High speed ground
ON
—
Approx. 0 V
32
L/Y
Wiper auto stop signal
NOTE
ON
Wiper operating
Approx. 0 V
Wiper stopped
Battery voltage
35
R
Front wiper reverse relay signal
ON
Wiper switch
OFF
Battery voltage
HI
Approx. 0 V
38
B
Ground
ON
—
Approx. 0 V
44
G/L
Front washer motor and front wiper
auto stop signal (HI) power supply
ON
—
Battery voltage
49
L
CAN-H
—
—
—
50
P
CAN-L
—
—
—
51
B
Ground
ON
—
Approx. 0 V
WW-24
FRONT WIPER AND WASHER SYSTEM
Preliminary Check
NKS003WK
CHECK POWER SUPPLY AND GROUND CIRCUIT
1.
CHECK FUSES AND FUSIBLE LINK
Check for blown fuses and fusible link.
Refer to
WW-13, "Wiring Diagram — WIPER —"
OK or NG
OK
>> GO TO 2.
NG
>> If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new fuse
PG-3, "POWER SUPPLY ROUTING CIRCUIT"
2.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BCM connectors.
3.
Check voltage between BCM harness connector and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair harness or connector.
3.
CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK
>> INSPECTION END
NG
>> Repair harness or connector.
Unit
Power source
Fuse and fusible link No.
BCM
Battery
F
21
Ignition switch ON or START
1
Front washer motor, front washer pump and front wiper HI auto
stop signal
Ignition switch ON or START
84
Front wiper motor, front wiper low relay, front wiper high relay
Battery
73
Front wiper reverse relay
Ignition switch ON or START
12
Terminal
Ignition switch position
(+)
(-)
OFF
ON
BCM
connector
Terminal
M1
38
Ground
Approx. 0 V
Battery voltage
M2
42
Battery voltage
Battery voltage
55
Battery voltage
Battery voltage
PKIA7520E
BCM connector
Terminal
Ground
Continuity
M2
52
Yes
SKIB5125E
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