Control NISSAN PRIMERA 1999 Electronic Repair Manual

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 terminal
6and
3.
Low and high speed wiper operation
Ground is supplied to wiper switch terminal
17through body groundsE11andE37.
When the wiper switch is placed in the LO position, ground is supplied

Through terminal
14of the wiper switch

to wiper motor terminal
2.
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 terminal
16of the wiper switch

to wiper motor terminal
1.
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 terminal
14of the wiper switch

to wiper motor terminal
2, in order to continue wiper motor operation at low speed.
Ground is also supplied

through terminal
13of the wiper switch

to front wiper relay terminal
3

through terminal
4of the front wiper relay

to wiper motor terminal
5

through terminal
4of the wiper motor, and

through body groundsE11andE37.
When wiper arms reach base of windshield, wiper motor terminals

5and
3are connected instead of
terminals

5and
4. 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 terminal
5

from wiper switch terminal
13

through body groundsE37andE11.

to wiper motor terminal
2

through the wiper switch terminal
14

to wiper switch terminal
13

through front wiper relay terminal
3
The desired interval time is input

to front wiper relay terminal
1

from wiper switch terminal
20.
The wiper motor operates at low speed at the desired time interval.
FRONT WIPER AND WASHER
EL-186

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 terminal
5

from wiper switch terminal
13

to wiper motor terminal
2

through the wiper switch terminal
14

to wiper switch terminal
13

through front wiper relay terminal
3
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 terminal
5.
When the lever is pulled to the WASH/F position, ground is supplied

to washer motor terminal
2

from terminal
18of the wiper switch

through terminal
4of the wiper switch, and

through body groundsE37andE11.
Power is supplied

from terminal
3of the washer switch

to washer motor terminal
1.
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

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 terminal
3(Sedan and H/B);
4(Wagon), and

to rear wiper relay terminal
2.
Low speed wiper operation
Ground is supplied to rear wiper switch terminal
4through body groundsE37andE11.
When the rear wiper is placed in the ON position, ground is supplied

through rear wiper switch terminal
2

to rear wiper relay terminal
1.
The rear wiper relay is energized and power is supplied

through 15A fuse (No.18, located in the fuse block)

to rear wiper relay terminal
5

through rear wiper relay terminal
3

to rear wiper motor terminal
2.
Ground is supplied

to rear wiper motor terminal
1(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 terminal
3(Sedan and H/B);
4(Wagon).
Ground is also supplied

to rear wiper motor terminal
1(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 terminal
2.
When the rear wiper is placed in the INT position, ground is supplied

to rear wiper relay terminal
1

through rear wiper switch terminal
2

to rear wiper amplifier

from rear wiper switch terminal
4

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 terminal
5

through rear wiper relay terminal
3

to rear wiper motor terminal
2.
REAR WIPER AND WASHER
EL-193

Ground is also supplied

to rear wiper motor terminal
1(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 terminal
5.
When the rear washer switch is pushed to the WASH/R position, ground is supplied

to rear washer motor terminal
1


from terminal
3of rear wiper switch

through terminal
4of rear wiper switch, and

through body groundsE37andE11.
Power is supplied

from terminal
18of the washer switch

to washer motor terminal
2.
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

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 terminal
1

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 terminal
16rear window defogger switch

to fuse block (J/B) terminal9C.

through time control unit terminal
3.
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 terminal
13of 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
EL-207

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

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
EL-209

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

Anti-theft System
NATS Audio Link
Description
The link with the NATS IMMU implies that the audio unit can basically only be operated if connected to the
matching NATS IMMU to which the audio unit was initially fitted on the production line.
Since radio operation is impossible after the link with the NATS is disrupted theft of the audio unit is basi-
cally useless since special equipment is required to reset the audio unit.
Initialization process for audio units that are linked to the NATS IMMU
New audio units will be delivered to the factories in the“NEW”state, i.e. ready to be linked with the vehi-
cle’s NATS. When the audio unit in“NEW”state is first switched on at the factory, it will start up communi-
cation with the vehicle’s immobiliser control unit (IMMU) and send a code (the“audio unit Code”)tothe
IMMU. The IMMU will then store this code, which is unique to each audio unit, in its (permanent) memory.
Upon receipt of the code by the IMMU, the NATS will confirm correct receipt of the audio unit code to the
audio unit. Hereafter, the audio unit will operate as normal.
During the initialisation process,“NEW”is displayed on the audio unit display. Normally though, communi-
cation between audio unit and IMMU takes such a short time (300 ms) that the audio unit seems to switch
on directly without showing“NEW”on its display.
Normal operation
Each time the audio unit is switched on afterwards, the audio unit code will be verified between the audio
unit and the NATS before the audio unit becomes operational. During the code verification process,“WAIT”
is shown on the audio unit display. Again, the communication takes such a short time (300 ms) that the audio
unit seems to switch on directly without showing“WAIT”on its display.
When the radio is locked
In case of a audio unit being linked with the vehicle’s NATS (immobilizer system), disconnection of the link
between the audio unit and the IMMU will cause the audio unit to switch into the lock (“SECURE”) mode in
which the audio unit is fully inoperative. Hence, repair of the audio unit is basically impossible, unless the
audio unit is reset to the“NEW”state for which special decoding equipment is required.
The radio manufacturer has provided their authorized service representatives with so called“decoder boxes”
which can bring the audio unit back to the“NEW”state, enabling the audio unit to be switched on after which
repair can be carried out. Subsequently, when the repaired audio unit is delivered to the final user again, it
will be in the“NEW”state as to enable re-linking the audio unit to the vehicle’s immobiliser system. As a
result of the above, repair of the audio unit can only be done by an authorized representative of the radio
manufacturer.
Service instruction
Item Radio linked with IMMU and/or SECU
Battery disconnection No additional action required
Radio needs repair Repair needs to be done by authorised representative of radio manufacturer since radio cannot
be operated unless it is reset to NEW state, using special decoding equipment
Replacement of radio by new part Radio is delivered in NEW state. If possible, the radio will automatically link up with the immobil-
iser system. If this appears not possible, the audio unit code needs to be manually input
Transferring radio to another
vehicle / replacement of radio by
an‘‘old’’partRadio needs to be reset to NEW state by authorised representative of radio manufacturer
Replacement of IMMU by new part Radio will request for the audio unit code input prior to establishing the link with the IMMU
Replacement of IMMU by old part If a radio code has already been stored in memory of the IMMU, the radio cannot be linked to it.
After switching on the radio, it will display‘‘SECURE’’after 1 minute. Operation can only be
established after resetting the ratio by an authorised representative of radio manufacturer
No communication from IMMU to radio Radio will display‘‘SECURE’’after 180 attempts to communicate with IMMU. Further use of radio
impossible until communication is established again, or after radio is reset by authorised repre-
sentative of (radio) manufacturer
AUDIO
EL-216

Audio unit code input procedure
1. Radio displays“CODE IN”after the power is switched ON.
2. Enter the audio unit code (4digits) by pressing the preset buttons (using 1 to 4).
Press the preset buttons for the necessary amount of times for the number of each digits.
e.g. the audio unit code is“5432”
Press No. 1 preset button for 5 times
Press No. 2 preset button for 4 times
Press No. 3 preset button for 3 times
Press No. 4 preset button for 2 times
3. Press the
button.
4. If the code is OK, the radio will power ON.
If the code is NG, the radio will be locked up as below. After the lock up, the radio will display“CODE
IN”again.
1st to 3rd attempt: The radio will be locked for 10 seconds after each attempt
4th to 20th attempt: The radio will be locked for 60 minutes after each attempt
Over 20th attempt: The radio will be locked completely
Speed Dependent Volume Control
Description
If activated, the radio output volume will be automatically adjusted to compensate for increasing driving
noises at higher driving speeds.
The radio receives a speed signal from the vehicle speed sensor (VSS) and selects the output volume.
Personal Audio Settings
Description
The radio is designed to store several settings (volume, bass, treble, preset stations and level of speed
dependent volume control) with every NATS ignition key used. Up to a maximum of 4 NATS keys can be
registered. During the communication as mentioned under“Anti-theft System”, the radio will recognize the
used ignition key and select the accompanying settings.
AUDIO
Anti-theft System (Cont’d)
EL-217