NISSAN LATIO 2008 Service Repair Manual

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FRONT WIPER AND WASHER SYSTEM
Wiper Does Not Wipe When Front Washer Operates
INFOID:0000000001704552
1.CHECK CIRCUIT BETWEEN COMBINATION SWITCH AND BCM
With CONSULT-lIl
1. Select “BCM” on CONSULT-III, and select “WIPER” on “SELECT TEST ITEM” screen.
2. Select “DATA MONITOR” on “SELECT DIAG MODE” screen. Make sure that “FR WASHER SW” turn ON-
OFF according to front wiper switch operation.
Without CONSULT-Ill
Refer to LT-63, "
Combination Switch Inspection" .
OK or NG
OK >> Replace BCM. Refer to BCS-18, "Removal and Installation of BCM" .
NG >> Check combination switch (wiper switch). Refer to LT-63, "
Combination Switch Inspection" .
Front Wiper Does Not StopINFOID:0000000001704553
1.CHECK CIRCUIT BETWEEN COMBINATION SWITCH AND BCM
With CONSULT-lIl
1. Select “BCM” on CONSULT-III, and select “WIPER” on “SELECT TEST ITEM” screen.
2. Select “DATA MONITOR” on “SELECT DIAG MODE” screen. Make sure that “FR WIPER INT”, “FR
WIPER LOW”, “FR WIPER HI”, and “FR WASHER SW” turn ON-OFF according to front wiper switch
operation.
Without CONSULT-Ill
Refer to LT-63, "
Combination Switch Inspection" .
OK or NG
OK >> Replace IPDM E/R. Refer to PG-25, "IPDM E/R Power/Ground Circuit Inspection" .
NG >> Check combination switch (wiper switch). Refer to LT-63, "
Combination Switch Inspection" .
Removal and Installation of Front Wiper ArmsINFOID:0000000001704554
REMOVAL
1. Turn wiper switch on to operate wiper motor, and then turn wiper switch off (auto stop).
2. Open hood, remove wiper arm caps, and remove wiper arm nuts.
3. Raise wiper arm, and remove wiper arm from the vehicle.
INSTALLATION
1. Clean up the pivot area as shown. This will reduce possibility of
wiper arm looseness.
2. Prior to wiper arm installation, turn on wiper switch to operate
wiper motor and then turn it off (auto stop).
3. Push wiper arm onto pivot shaft, paying attention to blind spline.
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FRONT WIPER AND WASHER SYSTEM
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4. Lift the blade up and then set it down onto glass surface to set
the blade center to clearance “L1” and “L2” immediately before
temporarily tightening the wiper arm nuts.
5. Spray washer fluid. Turn on wiper switch to operate wiper motor
and then turn it off.
6. Make sure that wiper blades stop within clearance “L1” and “L2”
and reposition as necessary.
7. Tighten wiper arm nuts to specification.
8. Attach wiper arm caps.
Adjustment of Wiper Arm Stop LocationINFOID:0000000001704555
ADJUSTMENT
To adjust the wiper arm stop location, the wiper arm must be removed and installed. Refer to "Adjustment of
Wiper Arm Stop Location " .
Removal and Installation of Front Wiper Drive AssemblyINFOID:0000000001704556
REMOVAL
1. Operate the front wiper motor, and stop at the auto stop position.Clearance “L1” : 38.7 ± 7.5 mm (1.524 ± 0.295 in)
Clearance “L2” : 38.4 ± 7.5 mm (1.512 ± 0.295 in)
PKIA9951E
1. Front RH wiper blade 2. Front RH wiper arm 3. Wiper arm cap
4. Front wiper drive assembly 5. Front LH wiper arm 6. Wiper arm cap
7. Front LH wiper blade
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FRONT WIPER AND WASHER SYSTEM
2. Remove wiper arms. Refer to WW-18, "Removal and Installation of Front Wiper Arms" .
3. Remove cowl top cover. Refer to EI-21
.
4. Disconnect wiper motor connector.
5. Remove front wiper drive assembly bolts, and remove front wiper drive assembly.
INSTALLATION
1. Install front wiper drive assembly.
2. Connect wiper motor connector. Turn wiper switch on to operate wiper motor, then turn wiper switch off
(auto stop).
3. Install cowl top cover. Refer to EI-21
.
4. Install the wiper arms. Refer to WW-18, "
Removal and Installation of Front Wiper Arms" .
Removal and Installation of Front Washer NozzleINFOID:0000000001704557
REMOVAL
1. Remove cowl top cover. Refer to EI-21, "Removal and Installation" .
2. Remove washer tube.
3. While pressing pawl (A) on the reverse side of front washer noz-
zle (1), remove front washer nozzle (1) from cowl top cover.
INSTALLATION
1. Install washer tube in nozzle.
2. Install nozzle to the vehicle.
3. Adjust nozzle spray location. Refer to WW-21, "
Washer Nozzle Adjustment" .
CAUTION:
The spray points differ, so be sure to install left and right nozzles correctly.
Inspection for Washer NozzleINFOID:0000000001704558
CHECK VALVE INSPECTION
Blow air in the injection direction, and make sure that air flows only
one way. Make sure that the reverse direction is not possible.
LKIA0939E
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FRONT WIPER AND WASHER SYSTEM
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Washer Nozzle AdjustmentINFOID:0000000001704559
• Adjust spray positions to match the positions as shown.
• Insert a suitable tool into the nozzle hole and move up/down and left/right to adjust to the specified spray
position.
Washer Tube LayoutINFOID:0000000001704560
1. Windshield A. 395 mm (15.55 in) B. 216 mm (8.50 in)
C. 100 mm (3.94 in) D. 85 mm (3.35 in) E. Black mask
F. 303 mm (11.93 in) G. 212 mm (8.35 in) H. 249 mm (9.80 in)
I. Center of windsheild J. Spray pattern area K. 286 mm (11.26 in)
LKIA0938E
SKIB5664E

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FRONT WIPER AND WASHER SYSTEM
Removal and Installation of Front Wiper and Washer Switch
INFOID:0000000001704561
REMOVAL
1. Remove the steering column cover. Refer to IP-10 .
2. Disconnect the wiper and washer switch connector.
3. Pull wiper and washer switch (1) toward the passenger door
while pressing pawls (A) in direction shown by the arrow, and
remove it from the base.
INSTALLATION
Installation is in the reverse order of removal.
Inspection of Front Wiper and Washer Switch CircuitINFOID:0000000001704562
Refer to LT-63, "Combination Switch Inspection" .
Removal and Installation of Washer TankINFOID:0000000001704563
REMOVAL
1. Remove the front grille. Refer to EI-20, "Removal and Installation" .
2. Remove clip (A) and pull washer tank inlet (1) out of washer
tank.
• : Vehicle front
3. Remove the front bumper. Refer to EI-14, "
Removal and Installation" .
4. Disconnect the washer motor connector and washer fluid level sensor connector.
5. Remove the washer tank screw (A).
• : Vehicle front
6. Remove the washer tube (1), and remove washer tank (2) from
the vehicle.
• : Vehicle front
1. Washer nozzle LH 2. Washer nozzle RH 3. Joint washer tube
4. Washer tube 5. Clip 6. Clamp
7. Washer tank
SKIB5666E
SKIB5667E
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FRONT WIPER AND WASHER SYSTEM
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INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
After installation, add water up to the upper level of washer tank inlet, and check for water leaks.
Removal and Installation of Front Washer MotorINFOID:0000000001704564
REMOVAL
1. Remove the front fender protector RH. Refer to EI-23 .
2. Disconnect washer motor connector (1) and remove washer
tube.
• : Vehicle front
3. Pull out front washer motor (2) in the direction shown. Remove
the front washer motor (2) from washer tank.
• : Vehicle front
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
When installing washer motor, there should be no packing twists, etc. Washer tank nuts : 4.5 N·m (0.46 kg-m, 40 in-lb)
Washer tank screw : 4.5 N·m (0.46 kg-m, 40 in-lb)
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REAR WIPER AND WASHER SYSTEM
REAR WIPER AND WASHER SYSTEM
Component Parts and Harness Connector LocationINFOID:0000000001704565
System DescriptionINFOID:0000000001704566
• The wiper switch (combination switch) is composed of a combination of 5 output terminals and 5 input termi-
nals. Terminal combination status is read by the BCM (body control module) when switch is turned ON.
• The BCM controls rear wiper ON and INT (intermittent) operation.
Power is supplied at all times
• through 40A fusible link (letter g , located in fuse and fusible link box)
• to BCM terminal 70.
With the ignition switch in ON or START position, power is supplied
• through 15A fuse [No. 4, located in the fuse block (J/B)]
• to combination switch terminal 2
• through 10A fuse [No. 6, located in the fuse block (J/B)]
• to BCM terminal 38.
Ground is supplied
• to BCM terminal 67, and
• to combination switch terminal 12
• through grounds M57 and M61.
REAR WIPER OPERATION
When the ignition switch is in the ON or START position, and the rear wiper switch is in the ON position, the
BCM detects a rear wiper ON request through the combination switch (wiper switch) reading function and con-
trols the rear wiper motor as follows.
Power is supplied
• through BCM terminal 55
• to rear wiper motor terminal 1.
Ground is supplied
• to rear wiper motor terminal 3
WKIA5507E
1.Combination switch (wiper switch)
M282.BCM M18 and M20 (view with glove
box removed)3.Front and rear washer motor E2
(view with front fender protector LH
removed)
4. Rear wiper motor D404

REAR WIPER AND WASHER SYSTEM
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• through grounds B117, B132 and D402.
With power and ground supplied, the rear wiper motor operates.
INTERMITTENT OPERATION
The rear wiper motor operates the wiper arm at low speed approximately every 7 seconds.
When the wiper switch is in the rear wiper INT position, the BCM detects a rear wiper INT request through the
combination switch (wiper switch) reading function.
When BCM operates rear wiper motor, power is supplied
• through BCM terminal 55
• to rear wiper motor terminal 1.
Ground is supplied
• to rear wiper motor terminal 3
• through grounds B117, B132 and D402.
With power and ground supplied, the rear wiper operates in intermittent mode.
AUTO STOP OPERATION
When the rear wiper arm is not located at the base of the rear window, and the rear wiper switch is turned
OFF, the rear wiper motor will continue to operate until the rear wiper arm is at the base of the rear window.
When the rear wiper arm reaches the base, rear wiper motor terminals 2 and 1 are connected.
Ground is supplied
• to BCM terminal 44
• through rear wiper motor terminal 2, and
• through rear wiper motor terminal 3, and
• through grounds B117, B132 and D402.
REAR WASHER OPERATION
When the ignition switch is in the ON or START position, and the front and rear washer switches are OFF, the
front and rear washer motor is supplied power
• through 15A fuse [No. 4, located in the fuse block (J/B)]
• to combination switch (wiper switch) terminal 14
• through combination switch (wiper switch) terminal 11
• to front and rear washer motor terminal 2.
When the rear wiper switch is in rear washer position, the BCM detects a rear washer signal by BCM wiper
switch reading function. Combination switch ground is supplied
• to front and rear washer motor terminal 1
• through combination switch (wiper switch) terminal 13, and
• through combination switch (wiper switch) terminal 12
• through grounds M57 and M61.
With ground supplied, the front and rear washer motor is operated in the rear direction.
When the BCM detects that the rear washer motor has operated for 0.4 seconds or longer, BCM operates the
rear wiper motor.
When the BCM detects that the rear washer switch is in OFF, the rear wiper motor cycles approximately 3
times and then stops.
If the rear washer is operated with the rear wiper switch in the INT position, normal rear wiper operation will
take over. Once the rear washer switch is released the rear wiper will return to INT operation.
BCM Combination Switch Reading Function
Refer to BCS-3, "System Description" .

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REAR WIPER AND WASHER SYSTEM
Wiring Diagram - WIP/R -
INFOID:0000000001704567
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REAR WIPER AND WASHER SYSTEM
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Terminal and Reference Value for BCMINFOID:0000000001704568
Refer to BCS-11, "Terminal and Reference Value for BCM" .
How to Proceed with Trouble DiagnosisINFOID:0000000001704569
1. Confirm the symptoms and customer complaint.
2. Understand operation description and function description. Refer to WW-24, "
System Description" .
WKWA4995E