1999 NISSAN PRIMERA Control
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System Description
WIPER OPERATION
The wiper switch is controlled by a lever built into the combination switch.
There are three wiper switch positions:
LO speed
HI speed
INT (Intermittent).
With the ignition switch in the ON or START position, power is supplied
through 20A fuse (No.located in the fuse block)
to wiper motor terminal6and3.
Low and high speed wiper operation
Ground is supplied to wiper switch terminal17through body groundsE11andE37.
When the wiper switch is placed in the LO position, ground is supplied
Through terminal14of the wiper switch
to wiper motor terminal2.
With power and ground supplied, the wiper motor operates at low speed.
When the wiper switch is placed in the HI position, ground is supplied
Through terminal16of the wiper switch
to wiper motor terminal1.
With power and ground supplied, the wiper motor operates at high speed.
Auto stop operation
With wiper switch turned OFF, wiper motor will continue to operate until wiper arms reach windshield base.
When wiper arms are not located at base of windshield with wiper switch OFF, ground is provided
from terminal14of the wiper switch
to wiper motor terminal2, in order to continue wiper motor operation at low speed.
Ground is also supplied
through terminal13of the wiper switch
to front wiper relay terminal3
through terminal4of the front wiper relay
to wiper motor terminal5
through terminal4of the wiper motor, and
through body groundsE11andE37.
When wiper arms reach base of windshield, wiper motor terminals
5and3are connected instead of
terminals
5and4. Wiper motor will then stop wiper arms at the PARK position.
Intermittent operation
With variable intermittent
The wiper motor operates the wiper arms at a set interval of approximately 2 to 20 seconds. This feature is
controlled by the combination switch wiper amplifier.
When the wiper switch is placed in the INT position, ground is supplied
to front wiper relay terminal5
from wiper switch terminal13
through body groundsE37andE11.
to wiper motor terminal2
through the wiper switch terminal14
to wiper switch terminal13
through front wiper relay terminal3
The desired interval time is input
to front wiper relay terminal1
from wiper switch terminal20.
The wiper motor operates at low speed at the desired time interval.
FRONT WIPER AND WASHER
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WIPER OPERATION
Without variable intermittent
The wiper motor operates the wiper arms at an interval of approximately 7 seconds. This feature is controlled
by the combination switch wiper amplifier.
When the wiper switch is placed in the INT position, ground is supplied
to front wiper relay terminal5
from wiper switch terminal13
to wiper motor terminal2
through the wiper switch terminal14
to wiper switch terminal13
through front wiper relay terminal3
WASHER OPERATION
With the ignition switch in the ON or START position, power is supplied
through 10A fuse (No.21, located in the fuse block)
to washer switch terminal5.
When the lever is pulled to the WASH/F position, ground is supplied
to washer motor terminal2
from terminal18of the wiper switch
through terminal4of the wiper switch, and
through body groundsE37andE11.
Power is supplied
from terminal3of the washer switch
to washer motor terminal1.
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 seconds to clean windshield. This feature is controlled by the combination switch (wiper
amplifier) in the same manner as the intermittent operation.
FRONT WIPER AND WASHER
System Description (Cont’d)
EL-187
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System Description
WIPER OPERATION
The rear wiper switch and rear intermittent wiper control is built into the combination switch.
There are two rear wiper switch positions:
ON (LO speed)
INT (Intermittent).
With the ignition switch in the ON or START position, power is supplied
through 15A fuse (No.18, located in the fuse block)
to rear wiper motor terminal3(Sedan and H/B);4(Wagon), and
to rear wiper relay terminal2.
Low speed wiper operation
Ground is supplied to rear wiper switch terminal4through body groundsE37andE11.
When the rear wiper is placed in the ON position, ground is supplied
through rear wiper switch terminal2
to rear wiper relay terminal1.
The rear wiper relay is energized and power is supplied
through 15A fuse (No.18, located in the fuse block)
to rear wiper relay terminal5
through rear wiper relay terminal3
to rear wiper motor terminal2.
Ground is supplied
to rear wiper motor terminal1(sedan and H/B);3(Wagon)
through body groundsB18andB27(Sedan);D110andB48(H/B and Wagon).
Auto stop operation
With the rear wiper switch turned OFF, rear wiper motor will continue to operate until wiper arm reaches rear
window base.
When wiper arm is not located at base of rear window with rear wiper switch OFF, rear wiper relay is not
energized.
Power is supplied
through 15A fuse (No.18, located in the fuse block)
to rear wiper motor terminal3(Sedan and H/B);4(Wagon).
Ground is also supplied
to rear wiper motor terminal1(Sedan and H/B);3(Wagon)
through body groundsB18andB27(Sedan);D110andB48(H/B and Wagon).
When wiper arm reaches base of rear window, rear wiper motor will then stop wiper arm at the PARK posi-
tion.
Intermittent operation
The rear wiper motor operates the wiper arm one time at low speed at an interval of approximately 7 sec-
onds. This feature is controlled by the rear wiper amplifier.
With the ignition switch in the ON or START position, power is supplied
through 15A fuse (No.18, located in the fuse block)
to rear wiper relay terminal2.
When the rear wiper is placed in the INT position, ground is supplied
to rear wiper relay terminal1
through rear wiper switch terminal2
to rear wiper amplifier
from rear wiper switch terminal4
through bogy groundsE37andE11.
When the rear wiper relay is energized, power is supplied
through 15A fuse (No.18, located in the fuse block)
to rear wiper relay terminal5
through rear wiper relay terminal3
to rear wiper motor terminal2.
REAR WIPER AND WASHER
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Ground is also supplied
to rear wiper motor terminal1(Sedan and H/B);3(Wagon)
through body groundsB18andB27(Sedan);D110andB48(H/B and Wagon).
With power and ground supplied, the rear wiper motor operates intermittently.
WASHER OPERATION
With the ignition switch in the ON or START position, power is supplied
through 10A fuse (No.21, located in the fuse block)
to rear washer switch connector terminal5.
When the rear washer switch is pushed to the WASH/R position, ground is supplied
to rear washer motor terminal1
from terminal3of rear wiper switch
through terminal4of rear wiper switch, and
through body groundsE37andE11.
Power is supplied
from terminal18of the washer switch
to washer motor terminal2.
With power and ground is supplied, the rear washer motor operates.
The rear wiper motor operates when the control switch is pushed to WASH position for one second or more
and for approximately 3 seconds after the switch is released. This feature is controlled by the rear wiper
amplifier in the same manner as the intermittent operation.
REAR WIPER AND WASHER
System Description (Cont’d)
EL-194
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System Description
The rear window and door mirror defogger system is controlled by the time control unit. The rear window
and door mirror defogger operates only for approximately 15 minutes.
Power is supplied at all times
to rear window defogger relay
With the ignition switch in the ON or START position, power is supplied
to rear window defogger relay
to time control unit terminal1
through 10A fuse [No.26, located in the fuse block (J/B)].
Ground is supplied to terminal
14of the rear window defogger switch through body groundsM6,M28and
M26.
When the rear window defogger switch is turned ON, ground is supplied
through terminal16rear window defogger switch
to fuse block (J/B) terminal9C.
through time control unit terminal3.
Terminal
13of the time control unit then supplies ground to the rear window defogger relay.
With power and ground supplied, the rear window defogger relay is energized.
For rear window defogger system, power is supplied
through 15A fuse [No.14and15, located in the fuse block (J/B)].
to rear window defogger.
For door mirror defogger system, power is supplied
through 10A fuse [No.1, located in the fuse block (J/B)].
to door mirror defogger.
The rear window and door mirror defogger have an independent ground.
With power and ground supplied, the rear window and door mirror filaments heat and defog the rear win-
dow and door mirrors.
When the system is activated, the rear defogger indicator illuminates in the rear window defogger switch.
Power is supplied
to terminal13of the rear window defogger switch
from 10A fuse [No.1, located in the fuse block (J/B)].
Terminal
14of the rear window defogger switch is grounded through body groundsM6,M28andM26.
REAR WINDOW DEFOGGER AND DOOR MIRROR DEFOGGER
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Schematic
YEL182C
REAR WIN-
DOW DEFOG-
GER SWITCH : With door mirror heater
FUSEFUSE
REAR WINDOW
DEFOGGER
CONDENSER
DOOR MIRROR HEATER
(PASSENGER SIDE)
DOOR MIRROR HEATER
(DRIVER’S SIDE)
TIME
CONTROL UNITREAR WIN-
DOW DEFOG-
GER RELAY BATTERY IGNITION SWITCH
ON or START
FUSE
REAR WINDOW DEFOGGER AND DOOR MIRROR DEFOGGER
EL-208
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Wiring Diagram—DEF—
YEL183C
IGNITION SWITCH
ON or START
FUSE
BLOCK
(J/B)
To EL-DEF-03 Refer to EL-POWER.
: With door mirror heater
: 4 door models and
5 door hatchback models
: Wagon models
OFFON
INDICATOR
LAMPREAR WIN-
DOW DEFOG-
GER SWITCHREAR WINDOW
DEFOGGER
RELAY
Next page
: This connector is not shown in“HARNESS LAYOUT”of EL section.REAR WINDOW
DEFOGGER
REFER TO THE FOLLOWING
FUSE BLOCK - Junction Box (J/B)
FUSE BLOCK - Junction Box (J/B) REAR WINDOW
DEFOGGER
CONDENSER TIME
CONTROL
UNIT BATTERY
BATTERY
REAR WINDOW DEFOGGER AND DOOR MIRROR DEFOGGER
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Trouble Diagnoses
DIAGNOSTIC PROCEDURE
SYMPTOM: Rear window defogger/door mirror
defogger does not activate, or does not
go off after activating.
CHECK REAR WINDOW DEFOGGER
INPUT SIGNAL.
1. Remove control unit from fuse block
(J/B).
2. Check continuity between control unit
harness terminal
3and ground.
OK
NG
Check the following.
Rear window defogger
switch
Harness for open or short
between control unit and
rear window defogger
switch
Rear window defogger
switch ground circuit
1. Turn ignition switch to ON position.
2. Check voltage between control unit termi-
nal
1and ground.
Battery voltage should exist.
OK
NG
Check the following.
10A fuse [No.26, located
in the fuse block (J/B)]
1. Turn ignition switch to ON position.
2. Check voltage between control unit termi-
nal
13and ground.
Battery voltage should exist.
OK
NG
Check the following.
Rear window defogger
relay
CHECK REAR WINDOW DEFOGGER
OUTPUT SIGNAL.
1. Install control unit to fuse block (J/B).
2. Turn ignition switch to ON POSITION.
3. Check voltage between fuse block (J/B)
harness terminal
1Kand ground.
NG
OK
Check the following.
Rear window defogger
filament
(Refer to EL-213.)
CHECK CONTROL UNIT GROUND CIR-
CUIT.
Check continuity between fuse block (J/B)
terminal
1Band ground.
Continuity should exist.
OK
NG
Check the following.
15A fuse [No.14 ,15 ,
located in the fuse block
(J/B)]
Rear window defogger
relay
OK NG
Repair harness or connectors.
Replace
relay or fuse.
Replace control unit.
Condition Continuity
Rear window defogger
switch is“OFF”.No
Rear window defogger
switch is“ON”.Ye s
Condition Voltage [V]
Rear window defogger
switch is“OFF”.0
Rear window defogger
switch is“ON”.Approx. 12
YEL438B
Time control unit connector
YEL439B
Time control unit connector
YEL440B
Time control unit connector
YEL441B
Fuse block (J/B) connector
YEL442B
Super multiple junction (SMJ) connector
REAR WINDOW DEFOGGER AND DOOR MIRROR DEFOGGER
EL-212