warning NISSAN PULSAR 1987 Owner's Manual

Electrical System 193


Installed view of the stop lamp switch and the flasher
unit.
(2) Fault in the warning lamp wiring: Check and
repair the fault.

NOTE: When renewing bulbs ensure that a
new bulb of the correct wattage is used.

TURN SIGNAL LAMPS FLASH WEAKLY AND
AT GREATER THAN NORMAL SPEED

1. Faulty flasher unit: Check and renew the
flasher unit.
2. Front or rear bulb blown on the turn side:
Check and renew the bulb.
NOTE: If the flasher unit is to be renewed,
always try to obtain a genuine replacement
part.

HAZARD WARNING LAMPS DO NOT
OPERATE

Fuse blown: Rectify the fault and renew as
necessary.
Flasher unit faulty: Re new the flasher unit.
Hazard warning switch faulty: Renew the
switch.
Fault in the wiring circuit: Check and repair
the fault.
5. TEST EQUIPMENT AND SOME APPLICATIONS

Special Equipment Required:
To Make Test Lamp or Jumper Lead — Soldering
iron

When working on the electrical system, a test
lamp and jumper leads can be very useful to check
circuits.

TO MAKE A JUMPER LEAD
The minimum materials required to make a
jumper lead are one length of 4 mm wire and two
small alligator clips.

Grouping of materials to construct jumper leads of
various sizes.
Bare both ends of a suitable length of 4 mm
wire. Connect a small alligato r clip to each end of
the wire. Solder and tape the connections. Test the jumper lead for continuity by re-
moving one battery cable and connecting the lead
between the cable and the battery terminal. Turn the
ignition On and the dashboard warning lamps should
operate indicating a completed circuit through the
jumper lead. Remove the jumper lead from the circuit and
reconnect the battery.
NOTE: Make a few jumper leads of various
lengths using different sizes and types of
alligator and battery clips.

TO MAKE A TEST LAMP
Due to the extensive use of electronic components
in the electrical system, an LED (light emitting diode)
test lamp can be made from a suitable length of 3 mm
wire, an alligator clip, an LED, a 1/4 watt 560 ohm
resistor, a suitable case such as an old ball point pen
case and a length of rod or wire sharpened to form a
probe.

(1) Solder the length of wire to the K (cathode)

Electrical System 207

Disconnect the wiring connectors from the
rear of the combination switch.
Loosen the clamping screw located at the left
hand side of the combination switch. Push, turn and slide the combination switch
from the steering column. Installation is a reversal of the removal procedure.

REAR WINDOW DEMISTER
SWITCH/HAZARD WARNING LAMP SWITCH

To Remove and Install
Disconnect the negative battery terminal.
Using two small flat bladed screwdrivers,
carefully lever the edges of the switch forward to
release it from the instrument cluster surround.
Withdraw the switch from the surround and
disconnect the switch wiri ng at the connectors.
Installation is a reversal of the removal procedure.


View of the hazard warning switch removed from the
instrument cluster surround.
DOOR LOCKS AND POWER WINDOW
SWITCHES

To Remove and Install
Disconnect the negative battery terminal.
Loosen the retaining screws securing the
armrest to the door. Using a small flat bladed screwdriver, care-
fully lever the front edge of the switch panel up and
maneuver the switch forward and away from the
armrest. Disconnect the wiring connector and remove
the switch from the armrest. Installation is a reversal of the removal procedure.

POWER MIRRORS AND INSTRUMENT
ILLUMINATION SWITCHES

To Remove and Install
Disconnect the negative battery terminal.
Using two small flat bladed screwdrivers,

View of the power mirror switch removed from the
vehicle.
carefully lever the edges of the switch forward to
release it from the fascia lo cated directly above the
fuse box.

(3) Withdraw the switch from the fascia and
disconnect the wiring.

Installation is a reversal of the removal procedure.
REAR WINDOW WIPER/WASHER SWITCH
To Remove and Install
Disconnect the negative battery terminal.
Using two small flat bladed screwdrivers,
carefully lever the edges of the switch forward to
release it from the instrument cluster surround. Withdraw the switch from the surround and
disconnect the wiring.
Installation is a reversal of the removal procedure.


View of the rear window wiper/washer switch re-
moved from the vehicle.

208 Electrical System

STOP LAMP SWITCH
To Remove and Install
Disconnect the switch wi ring at the connec-
tors.
Loosen the switch locknut and unscrew the
switch from the pedal bracket.
Installation is a reversal of the removal procedure
with attention to the following points:

The stop lamp switch is also the return stop for
the brake pedal. Adjust the pedal free play as de-
scribed in the Brakes section.


Installed view of the stop lamp switch and the flasher
unit.
HANDBRAKE WARNING LAMP SWITCH
To Remove and Install
Lift the small plastic cover directly under the
handbrake and remove the screws.
Remove the carpet at the rear of the centre
console and remove the screws.
Carefully remove the console from the hand-
brake assembly. Remove the retaining screw and withdraw
the switch from the handbrake lever. To Test


Remove the handbrake console as described
in the previous text.
Disconnect the switch wiring at the con-
nector. Connect an ohmmeter between the switch
terminal and a suitable earth. Pull the handbrake lever up.
If no reading is displayed on the ohmmeter,
the switch is faulty and should be renewed using the
procedure previously described. Installation is a reversal of the removal procedure.

COURTESY LAMP DOOR SWITCH
To Remove and Install
With the door fully open, remove the retain-
ing screw from within the rubber cover of the switch. Withdraw the switch from the centre door
pillar.
Disconnect the wiring from the switch and
remove the switch from the vehicle. Installation is a reversal of the removal procedure.


View of the courtesy lamp door switch removed from
the vehicle.
REVERSE LAMP SWITCH
On automatic transaxle models, a combined neu-
tral safety switch and reverse lamp switch is installed
on the side of the transaxle. The test and renewal
procedures are described in the Automatic Transaxle
section.

To Remove and Install
Disconnect the wiring connector terminals at
the reverse lamp switch. Remove the reverse lamp switch from the
transaxle housing. Installation is a reversal of the removal procedure.
Installed view of the handbrake warning lamp switch.

220 Electrical System


Wiring diagram (WD2) for the instruments, hazard and turning signal systems.
COLOUR CODE
The first letter of the code
represents the main wire color,
the other letters represent the
trace colors.

B - BLACK
L - BLUE
G - GREEN
R - RED
Y - YELLOW
W- WHITE
N - BROWN
O - OHANGE
K - PINK
S - GREY V -VIOLET
P - PURPLE X - LIGHT GREEN Z - LIGHT BLUE M - DARK GREEN T - DARK BLUE A - LIGHT BROWN E - SLATE D - TAN
KEY 1. Fuse 11 Ignition
2. Speedometer
3. Vehicle speed sensor
4. To No. 21 WD1
5. To ECU A10
6. To No. 13 WD1
7. Tachometer
8. Voltage regulator
9. Resistor
10. Temperature gauge
11. Fuel gauge
12. Temperature sender
13. Fuel sender
14. To ECM lamp
15. Oil lamp
16. Park brake lamp
17. Low fuel lamp
18. To ECU A5
19. To No. 20 WD1
20. Park brake switch
21. Low fuel switch
22. Brake switch
23. Brake fail lamp
24. Bulb check relay
25. Charge lamp
26. Door ajar lamp
27. To No. 6 VWD1
28. To No. 8 WD4
29. To No. 18 WD6
30. To No. 17 WD6 31. Hazard switch

32. Flasher unit
33. Turn signal switch
34. L H front combination
lamp
35. L H side indicator lamp
36. L H rear combination lamp
37. L H instrument warning
lamp
38. R H instrument warning lamp
39. R H rear combination lamp
40. R H side indicator lamp
41. R H front combination lamp
42. Divider circuit

Electrical System 221

Wiring diagram (WD3) for the fan switch, blower, air conditioning, rear demister and power
window circuits.
COLOUR CODE
The first letter of tha code
represents the main wire color,
the other letters represent the
trace colours.
B - BLACK
L - BLUE
G - GREEN
R - BED
Y - YELLOW
W - WHITE
N - BROWN
0 - ORANGE
K - PINK
S - GREY
V - VIOLET
P - PURPLE
X - LIGHT GREEN
Z - LIGHT BLUE
M - DARK GREEN
T - DARK BLUE
A - LIGHT BROWN
E - SLATE
D - TAN KEY

1. Blower fan motor
2. To No. 11 WD5
3. Resistors
4. Blower fan switch
5. To ECU C2
6. Air conditioning switch
7. Thermo amplifier
8. Pressure switch
9. Air conditioning relay No. 2
10. Compressor
11. Air conditioning relay No. 1
12. To ECU B8
13. Air conditioning relav No. 3
14. Condenser fan
15. Cooling Ian relay
16. Fuse 22 BATT
17. Fuse 10 Ignition
18. To ECU C1
19. Rear demister switch
20. Cooling fan motor
21. Rear demister
22. Rear demister warning lamp
23. Power window relay
24. Circuit breaker
25. R H front power
window motor
26. Power window amplifier
27. R H front power window switch
28. Door lock switch
29. Main power window switch
30. L H front power
window switch
31. R H rear power window switch
32. L H rear power window switch
33. L H front power
window motor
34. R H rear power window motor
35. L H rear power window motor