NISSAN PICK-UP 1998 Repair Manual

WASHER OPERATION
With the ignition switch in the ACC or ON position, power is supplied
lthrough 20A fuse (No.16, located in the fuse block)
lto washer motor terminalV1.
With intermittent wiper
When the lever is pulled to the WASH position, ground is supplied
lto washer motor terminalV2, and
lto wiper amplifier terminalV6
lfrom terminalV18of the wiper switch
lthrough terminalV17of the wiper switch, and
lthrough body groundsM1andM54.
With power and ground supplied, the washer motor operates.
When the lever is pulled to the WASH position for one second or more, the wiper motor operates at low
speed for approximately 3 times after the lever is released. This feature is controlled by the wiper amplifier
in the same manner as the intermittent operation.
Without intermittent wiper
When the lever is pulled to the WASH position, ground is supplied
lto washer motor terminalV2
lfrom terminalV18of the wiper switch
lthrough terminalV17of the wiper switch, and
lthrough body groundsM1andM54.
With power and ground supplied, the washer motor operates.
FRONT WIPER AND WASHER
System Description (Cont'd)
EL-121

Wiring Diagram Ð WIPER Ð/LHD Models
with Intermittent
HEL934
FRONT WIPER AND WASHER
EL-122

HEL935
FRONT WIPER AND WASHER
Wiring Diagram Ð WIPER Ð/LHD Models
with Intermittent (Cont'd)
EL-123

Wiring Diagram Ð WIPER Ð/RHD Models
with Intermittent
HEL937
FRONT WIPER AND WASHER
EL-124

HEL372A
FRONT WIPER AND WASHER
Wiring Diagram Ð WIPER Ð/RHD Models
with Intermittent (Cont'd)
EL-125

Trouble Diagnoses
DIAGNOSTIC PROCEDURE 1
SYMPTOM: Intermittent wiper does not operate.
Check whether wiper operates with the
wiper switch at Lo position.
OK
cNG
Check the following.
l20A fuse (No.16,
located in fuse block)
lWiper motorlWiper switchlHarness for open or
short
1) Turn front wiper switch to OFF.
2) Disconnect wiper amp. connector.
3) Check voltage between wiper amp.
terminal
V2and ground.
Battery voltage should exist.
OK
cNG
Check the following.
lWiper switchlHarness for open or
short between wiper
amp. terminal
V2and
wiper switch terminal
V13
CHECK INTERMITTENT SWITCH INPUT
SIGNAL.
Check harness continuity between wiper
amp. terminal
V1and ground.
OK
cNG
Check the following.
lWiper switchlHarness for open or
short between wiper
amp. terminal
V1and
wiper switch terminal
V15lGround circuit for front
wiper switch terminal
V17
CHECK WIPER AMP. POWER SUPPLY
CIRCUIT.
Check voltage between wiper amp. termi-
nal
V5and ground while ignition switch is
``ACC''.
Battery voltage should exist.
OK
cNG
Check the following.
l20A fuse (No.16,
located in fuse block)
lHarness for open or
short between wiper
amp. and fuse
CHECK WIPER AMP. GROUND CIR-
CUIT.
Check harness continuity between wiper
amp. terminal
V3and body ground.
Continuity should exist.
OK
cNG
Repair harness or connec-
tor.
Replace wiper amp.
Condition of
wiper switchContinuity
OFF No
INT Yes
SEL140VB
SEL141VB
SEL142VB
SEL143VB
.
.
.
.
.
FRONT WIPER AND WASHER
EL-126

DIAGNOSTIC PROCEDURE 2
SYMPTOM: Wiper and washer activate individually but not
in combination.
CHECK WASHER SWITCH INPUT SIG-
NAL.
1) Turn ignition switch to ``OFF''.
2) Disconnect wiper amp. connector.
3) Check harness continuity between
wiper amp. terminal
V6and ground.
OK
cNG
Check harness for open or
short between wiper amp.
terminal
V6and wiper
switch terminal
V18.
Go to DIAGNOSTIC PROCEDURE 1.cNG
Replace wiper amp.
Condition of
washer switchContinuity
OFF No
ON Yes
Wiper Installation and Adjustment
1. Prior to wiper arm installation, turn on wiper switch to oper-
ate wiper motor and then turn it ``OFF'' (Auto Stop).
2. Lift the blade up and then set it down onto glass surface to
set the blade center to clearance ``L
1'' & ``L2'' immediately
before tightening nut.
3. Eject washer fluid. Turn on wiper switch to operate wiper
motor and then turn it ``OFF''.
4. Ensure that wiper blades stop within clearance ``L
1'' & ``L2''.
Clearance ``L
1'': 20 - 30 mm (0.79 - 1.18 in)
Clearance ``L
2'': 20 - 30 mm (0.79 - 1.18 in)
lTighten wiper arm nuts to specified torque.
Front wiper: 12.7 - 17.7 Nzm (1.3 - 1.8 kg-m,
9 - 13 ft-lb)
lBefore reinstalling wiper arm, clean up the pivot area as
illustrated. This will reduce possibility of wiper arm
looseness.
SEL145VB
SEL543TA
SEL024J
.
FRONT WIPER AND WASHER
Trouble Diagnoses (Cont'd)
EL-127

Washer Nozzle Adjustment
lAdjust washer nozzle with suitable tool as shown in the fig-
ure at left.
Adjustable range:  10É
Unit: mm (in)
*1 470 (18.50) *5 60 (2.36)
*2 215 (8.46) *6 225 (8.86)
*3 380 (14.96) *7 255 (10.04)
*4 180 (7.09) *8 460 (18.11)
*: The diameters of these circles are less than 60 mm (2.36 in).
Washer Tube Layout
GEL013-A
SEL544TA
SEL845T
GEL193
FRONT WIPER AND WASHER
EL-128

Wiper Linkage
REMOVAL
1. Remove 4 bolts that secure wiper motor.
2. Detach wiper motor from wiper linkage at ball joint.
3. Remove wiper linkage.
Be careful not to break ball joint rubber boot.
INSTALLATION
lGrease ball joint portion before installation.
1. Installation is the reverse order of removal.
GEL194
FRONT WIPER AND WASHER
EL-129

Wiring Diagram Ð HLC Ð
HEL373A
HEADLAMP WASHER
EL-130