Infiniti FX35, FX50 (S51). Manual — part 1953
WASHER SWITCH
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WASHER SWITCH
Description
INFOID:0000000005234761
• Washer switch is integrated with combination switch.
• Combination switch switches polarity between front washer operating and rear washer operating to supply
power to the washer pump on ground.
Component Inspection
INFOID:0000000005234762
1.
CHECK WIPER SWITCH
1.
Turn the ignition switch OFF.
2.
Disconnect combination switch connector.
3.
Check continuity between the combination switch terminals.
Does continuity exist?
YES
>> Wiper and washer switch is normal.
NO
>> Replace combination switch (Wiper and washer switch).
JPLIA0163GB
A
: Terminal 4
B
: Terminal 6
C
: Terminal 3
D
: Terminal 1
JPLIA0164GB
Combination switch
Condition
Continuity
Terminal
1
6
Front washer switch ON
Existed
3
4
1
4
Rear washer switch ON
3
6
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< DTC/CIRCUIT DIAGNOSIS >
RAIN SENSOR
RAIN SENSOR
Description
INFOID:0000000005234763
Rain sensor judges a wiping speed for front wiper by rain condition
and the vehicle conditions. And it transmits the wiping speed request
signal to the BCM via the rain sensor serial link.
Component Function Check
INFOID:0000000005234764
1.
CHECK FRONT WIPER AUTO OPERATION
1.
Clean rain sensor detection area of windshield fully.
2.
When the front wiper switch is turned to INT position, front wiper operates once regardless of a rainy con-
dition.
Is front wiper (AUTO) operation normally?
YES
>> Rain sensor circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000005234765
1.
CHECK RAIN SENSOR FUSE
1.
Turn the ignition switch OFF.
2.
Check that the rain sensor 10A fuse (#6) is not fusing.
Is the fuse fusing?
YES
>> Replace the fuse after repairing the applicable circuit.
NO
>> GO TO 2.
2.
CHECK RAIN SENSOR POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect rain sensor connector.
3.
Turn ignition switch ON.
4.
Check voltage between rain sensor harness connector and ground.
Is the measurement value normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness.
3.
CHECK RAIN SENSOR GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Check continuity between rain sensor harness connector and ground.
JPLIA1188ZZ
Terminal
Voltage (Approx.)
(+)
(
−
)
Rain sensor connector
Terminal
R9
1
Ground Battery
voltage
RAIN SENSOR
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Does continuity exist?
YES
>> GO TO 4.
NO
>> Repair or replace harness.
4.
CHECK RAIN SENSOR SIGNAL
1.
Connect rain sensor connector.
2.
Turn ignition switch ON.
3.
Check signal between BCM harness connector and ground with oscilloscope.
Is the measurement value normal?
YES
>> Replace rain sensor. Refer to
.
NO
>> GO TO 5.
5.
CHECK RAIN SENSOR SIGNAL CIRCUIT FOR OPEN
1.
Disconnect BCM connector.
2.
Check continuity between BCM harness connector and rain sensor harness connector.
Does continuity exist?
YES
>> GO TO 6.
NO
>> Repair or replace harness.
6.
CHECK RAIN SENSOR SIGNAL CIRCUIT FOR SHORT
Check continuity between BCM harness connector and ground.
Does continuity exist?
YES
>> Repair or replace harness.
NO
>> Replace BCM. Refer to
.
Rain sensor
Ground
Continuity
Connector
Terminal
R9
3
Existed
Terminal
Condition
Signal
(Reference value)
(+)
(
−
)
BCM
connector
Terminal
M123
112
Ground
Ignition
switch ON
Approx. 8.7V
JPMIA0156GB
BCM
Rain sensor
Continuity
Connector
Terminal
Connector
Terminal
M123
112
R9
2
Existed
BCM
Ground
Continuity
Connector
Terminal
M123
112
Not existed
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< DTC/CIRCUIT DIAGNOSIS >
REAR WIPER MOTOR CIRCUIT
REAR WIPER MOTOR CIRCUIT
Component Function Check
INFOID:0000000005234766
1.
CHECK REAR WIPER ON OPERATION
CONSULT-III ACTIVE TEST
1.
Select “RR WIPER” of BCM active test item.
2.
With operating the test item, check rear wiper operation.
Is rear wiper operation normally?
YES
>> Rear wiper motor circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000005234767
1.
CHECK REAR WIPER MOTOR OUTPUT VOLTAGE
CONSULT-III ACTIVE TEST
1.
Turn the ignition switch OFF.
2.
Disconnect rear wiper motor connector.
3.
Turn the ignition switch ON.
4.
Select “RR WIPER” of BCM active test item.
5.
With operating the test item, check voltage between BCM harness connector and ground.
Is the measurement value normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK REAR WIPER MOTOR SHORT CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect BCM connector.
3.
Check continuity between BCM harness connector and ground.
Does continuity exist?
YES
>> Repair the harness or connector.
NO
>> Replace BCM. Refer to
3.
CHECK REAR WIPER MOTOR OPEN CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect BCM connector.
3.
Check continuity between BCM harness connector and rear wiper motor harness connector.
On
: Rear wiper ON operation
Off
: Stop the rear wiper.
Terminals
Test item
Voltage (Approx.)
(+)
(
−
)
BCM
Ground
REAR WIPER
Connector
Terminal
M120
26
On
Battery voltage
Off
0 V
BCM
Ground
Continuity
Connector
Terminal
M120
26
Not existed
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