1987 NISSAN PULSAR Workshop Manual

Electrical System 217
When installing a trailer socket, it may be neces-
sary to replace the original vehicle flasher unit with a
heavy duty unit to maintain the flash rate in accor-
dance with local regulations. Local regulations may
also require the installation of a dashboard mounted
repeater lamp.

Should the trailer socket and plug not be matched,
adaptors can be made or obtained to facilitate con-
nection.

TO INSTAL TRAILER SOCKET.
The minimum materials required are a trailer
socket, mounting bracket, seven core flex, insulated
wiring connectors and a rubber grommet.

(1) Disconnect the negative battery terminal.
(2)Locate the wiring harness for the lamps at
the rear of the vehicle.

For five pin sockets and plugs, use the following
standard trailer wiring code:

Terminal No.CircuitColor2 Left turn signal lampYellow
3Earth White
5 Ri
ght turn signal lampGreen
6Stop lamp Red
7 Tail lam
p Brown

Minimum material needed for wiring up a trailer.
Utilux trailer socket and plug shown.
(3) Identify the wires for the right turn signal
lamp, left turn signal lamp, tail lamp, stop lamp,
reverse lamp and earth. Use the vehicle wiring
diagram in this section to determine the wire color
for each lamp circuit.
(4)Connect the seven core flex to the various
lamp wires using insulated connectors.
For seven pin sockets and plugs, use the following
standard trailer wiring code:

Terminal No.CircuitColor1 Left turn signal lamp Yellow
2 Reversing lamp Black
3EarthWhite
4 Right turn signal Green
lamp
5Electric brakesBlue
6 Stop lampRed
7
Tail lampBrown
For six pin sockets and pl ugs, use the following
standard trailer wiring code:
Terminal No.CircuitColor1 Tail LampBrown
2 Left Turn Signal Lamp Yellow
3Right Turn Signal LampGreen
4 Stop LampRed
5AuxilaryBlue
6 Earth White

(5) Drill a suitably si
zed hole through the vehicle
floor and install a rubber grommet to the hole.

NOTE: Before drilling the hole, check
whether there is an existing hole which may-
be used. Ensure that a rubber grommet is
installed to prevent chafing of the wires.

Pass the seven core flex through the rubber
grommet. Cut the seven core flex to the required length
and slide the dust cover onto the flex. Remove approximately 15 mm of insulation
from each wire in the flex.
Connect the wires of the seven core flex to
the terminals of the socket, using the standard wiring
code and following the socket manufacturers connec-
tion procedure. Assemble the socket and install the dust cover
to the rear of the socket. Install the mounting bracket as close as
possible to the tow bar ball and high enough to
maintain vehicle ground clearance. Install the socket to the mounting bracket.
Connect a trailer plug to the socket and test
for correct lamp operation.
TO INSTAL TRAILER PLUG

The minimum materials required are a trailer
plug, seven core flex and insulated wiring connectors.

The installation procedure for the trailer plug is
similar to that for the socket with attention to the
following points:

Connect the trailer wiring to the plug accord-
ing to the standard wiring color code and the plug
manufacturers instructions. Use a suitable length of
seven core flex and insulated connectors should the
trailer wiring not be long enough.
If the trailer wiring does not conform to the
standard color code, identify each circuit as follows: (a) Locate the trailer earth wire.

PLUG

218 Electrical System
Connect a jumper lead from the negative
terminal of a 12 volt battery to the earth wire. Connect a jumper lead from the positive
terminal of a 12 volt battery and connect each of the
trailer lamp wires in turn to the positive battery terminal jumper lead, noting the color of the wire
and the lamp circuit operated.

(3) After installation, connect the trailer plug to
the socket on the vehicle and check for correct lamp
operation.


Vehicle and trailer wired to conform to Australian Standard AS2513. Sockets and plug shown are as viewed
from the terminal side of the component. Refer to the text for the correct terminal applications when using a
5 or 6 pin socket and plug.

COLOUR CODE
B - Black
G - Green
L - Blue
N - Brown
R - Red
W - Whlte
Y -Yellow

1 To vehicle wiring 7.Trailer reverse lamp

harness 8.Trailer L H turn signal
2. 7 pin socket — Bosch. lamp

Hella. Utilux 9.6 pin socket - Utilux
3 7 pin plug - Bosch, 10.5 pin socket - Bosch

Hella, Utilux Hella
4. Trailer R H turn signal 11.7 pin socket - Brylite

lamp 12.Trailer electric brakes
5. Trailer tail lamp
6. Trailer stop lamp

Electrical System 219


Wiring diagram (WDI) for the starting, charging and engine management 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 - 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. Battery
2. Fusible links
3. To BATT WD4
4. Alternator
5. Starter motor
6. To No 27 WD2
7. Ignition switch
8. To No.10 WD4
9. To ECU BIO
10. Inhibitor relav
11. Neutral safety
switch
12. Fuse No.8 Ignition
13. Ignition coil
14. Distributor
15. To ECU A1
16. Fuel pump relay
17. Fuel pump
18. ALDL connector - Terminal G
19. Oil pressure switch
20. To No. 19 WD2
21. To No. 4 WD2
22. Reverse lamp switch
23. Fuse No. 9 Ignition
24. L H reverse lamp
25. R H reverse lamp
26. EGI relay
27. ECU C16 and B1
28. ECU A6
29. To ECU D16
30. To ECU D15
31. Injectors
32. Ignition relay
33. To No. 1 WD2
34. To tachometer
35. Condensor
36. Bypass circuit (manual transaxle)

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

222 Electrical System

Wiring diagram (WD4) for the horn, audio, front wiper/washer and rear wiper/washer circuits.
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 - 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. Fuse No. 18 Batt
2. Horn relay
3. Horn switch
4. Horn
5. Stop lamp switch
6. L H stop lamp
7. R H stop lamp
8. To No. 28 WD2
9. To No. 14 WD6
10. To No. 8 WD1
11. Radio cassette and clock
12. L H front speaker
13. L H rear speaker
14. R H front speaker
15. R H rear speaker
16. Fuse No. 19 Batt
17. Fuse No. 20 Batt
18. Fuse No. 6 ACC
19. Rear washer motor
20. Rear wiper/washer
motor
21. Rear wiper motor
22. Fuse No. 7 ACC
23. Front wiper motor
24. Front washer motor
25. Intermittent wiper relay
26. Front wiper/washer
switch
27. Variable intermittent
switch

Electrical System 223

Wiring diagram (WD5) for the mirrors, cigarette lighter and door lock circuits.
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 - 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. Accessories relay
2. R H power mirror 3. L H power mirror
4. Power mirror switch
5. Fuse No. 3 ACC
6. Fuse No. 4 ACC
7. Fuse No. 5 ACC
8. Fuse No 21 B
9. Cigarette lighter
10. To No. 13 WD6
11. To No. 2 WD3
12. Door lock timer
13. Front door lock switch
14. Key lock switch
15. Door lock switch
16. L H front door lock solenoid
17. R H rear door lock solenoid
18. L H rear door lock
solenoid

224 Electrical System

Wiring diagram (WD6) for the lighting 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
V - YELLOW
W - WHITE
N - BROWN
O - 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. Fuse No. 17 Batt
2. Fuse No. 13 Batt
3. Fuse No. 14 Batt
4. Combination lamp
switch
5. RH headlamp
5A. RH high beam
6 . L H headlamp
6A. LH high beam 7. L H front clearance lamp
8. R H front clearance lamp
9. LH tail lamp
10. R H tail lamp 11. Licence plate lamp
12. Automatic transaxle indicator lamp
13. To No. 10 WD5
14. To No. 9 WD4
15. Illumination control
16. Combination meter
17. To No. 30 WD2
18. To No. 29 WD2
19. Interior lamp timer
20. Interior lamp switch
21. R H rear door switch
22. L H rear door switch
23. L H front door switch
24. R H front door switch
25. Luggage compart- ment lamp
26. Luggage compart- ment switch