fuel VOLVO 940 1982 Service Service Manual

740/940 1991
Fuse Fed
by Circuits
protected Fuse Fuse
num- rating num-
ber ber
1
Battery + Fuel pump 25 A 13 Relay, injection
system Ignition system
Lambda-sond preheating
(not B
230 FT) f-----2 Hazard flash
lights 25 A
Main beam flash (via
fuse 17 and 18)
Central locking f-----
( 3 Power seats (motors) 15 A (X-relay, main beam , not fused) 14
r----4 Brake lighi switch
15 A Bulb failure warning
- brake lights f-----15 P-shift lock, solenoid f-----5 Clock 15 A
Radio
Power antenna -Door warning lights 16
Courtesy lights Make-up mirror Glove compartment light Trunk light 17 f-----6 ECC,
heater fan 30 A
-
ECC, controll unit 18
7 30-busbar
Fog
lights (940) 30 A 19
(battery+ ) Rear fog lights or X-relay, main beam -20
8 Main relay, Power windows
(motors) 30 A
power and
heating,
21
seats
9
Ignition Fasten seat belt reminder 15 A
switch 15 I Turn indicators
Magnetic clutch, ECC comp o
-
22
Relay, electric cooling fan Main relay, power and
heating, seats
P-shift inhibitor (solenoid) (ABS surge protector not fused) I----(
10 Heated rear window 30 A
Heated mirrors 23
Power sun
roof
11 Relay , in- Tank pump
15 A
jection Lambda-sond,
pre-heating 24
system (not
B
230 FT)
12
Ignition Back-up lights 15 A 25
switch 15 Overdrive relay, M
46 Bulb failure warning
Exhaust temp. warn. (Japan)
OD, AW71
Cruise control
26
Fed by
Ignition switch 15
Ignition
switch X
X-relay, main beam
Bulb
failure
warning
Main
light relay
Main relay, power and
heating, seats
Ignition switch 15 I or light switch
Battery +
70019401960 Specifications
Section 3 Electrical System
740/940 199 1
Circuits protected Fuse
rating
Automatic preheating, diesel 15 A Fuel valve, diesel Charge pressure limiter turbo diesel EGR, diesel (Control unit, fuel system, not fused) (Control unit, ignition system, not
fused)
(Power stage , fuel system, not fused)
(Diagnostic connector, not fused)
Radio 15
A Power mirrors
Tailgate wash/wipe
Cigar
lighter
Horn 25
A Windshield wash/wipe Headlight wash/wipe Power seats (controls) (SRS Airbag not fused)
Heater fan (not ECC) 30 A
ECC , control unit
ECC, solenoid valves
Left main beam 15
A Indicator light, main beam
Right main beam 15
A
Left dipped beam 15
A
Relay, front foglight Beam length control
Right dipped beam 15
A
Beam length control
Left parking lights, 15 A
front and rear
Licence
plate light
Panel lights
Right parking lights, 15 A
front and rear
Relay, foglight front Belt and ashtray lights back
Shift selector light Lights, switches and
compartment on tunnel
Heated front seat 25
A
(power)
Reserve
(SRS diagnosis
socket)
Rear
fog lights USA/CDN 15 A
Automatic dipped beam EU/OS (can be turned off)
Radio, USA/CDN/GB
(lights) (Switch, fog lights, 940 USNCDN not fused)
Radio, amplifier 15 A
135
I
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70019401960 Specifications
Section
3 E lectrical System
I
960 1991
Fuse Fed by C ircuit s protecte d Fuse
960 1991
Fuse Fed by Circuit s protected Fuse nurn-rating nurn- r
ating
b er
ber
1 Light
Left
parking lights, 10 A
19 Ignition Control unit, ECC 15
A
switch Licence plate
light switch X Power
mirrors Bulb failure waring
Power seats (controls)
-outer rear lights
Tailgate wash/wipe t---2 Right
parking lights, 10 A Cigar lighter I----Bulb failure
warning 20 Horn 25
A -inner rear lights
Windshield wash/wipe
3 Main
light Left
main beam 15
A Headlight wash /wipe
relay Left auxiliary beam 21 Ignition Automatic pre-heat, diesel 5A r---4 Right
main beam 15 A switch
15 Mode selector I----Right auxiliary beam
22 ABS (control unit)
5
SRS diagnostic socket (Combined instrument not fused) 5A I----
6 Bulb failure Left dipped beam 15
A
warning , Beam length
control, left t---9-pole 7 Right
dipped beam 15
A 23
Control unit, AW 30-43 (A/power) 10 A
Control unit, fuel system Relay,
electric cooling fan
Beam length control, right (B
230/B 280)
8 Light
Foglights front
15 A Diagnostic
socket (B 6304)
r---switch
9 Foglights rear 10 A Indicator light, foglights rear -
24 Battery + Control unit, AW 30-43 10 A
(B/m emory) Control unit , fuel system
10 Lighting : 5A -Instrument panel
- Controls
-
Mode selector
-Beam length control Control
unit
, ignition system t---25 Hazard flash lights 25 A Central locking (Light switch not fused) I-----(Sun roof
26 Clock 10 A
-
ECC controls Courtesy lights
-Radio Door
warning lights
- Clock Engine compartment lighting
-Cigar lighter Trunk lighting
-Ashtray, front and rear -Shift selector scale
- Seat heating -Seat belt locks
I----27 Brake light switch 15
A Bulb failure warning sensor -brake lights P-shift inhibitor (solenoid)
11 Ignition Back-up lights 15 A
switch
151 Turn indicators
Cruise control
I----28 Heater
fan (ECC) 30 A
ECC compr essor t---t---12 Reduced
dip beam (Dim-dip) 15 A
P-shift inhibitor (control circuit) r---
29 Power antenna 30 A
Trailer (Turn indicator switch not fused)
13 Heated
rear window 25 A
Heated mirrors
t---
30 Relay,
fuel Tank pump 10 A
injection Lambda-sond
14 Exhaust
temp. warn. (Japan)
10 A
Overdrive
(M 46, AW 70/71)
Power windows (controls)
31 Battery + Relay, fuel injection 25
A -Fuel pump
Power sun roof
(controls) 32 Battery + Amplifier, radio 15
A
Heated seats (controls) Fasten seat belt reminder
I----33 Radio 10 A
Bulb
failure warning, 14-pole t---15 Reserve t---16 Reserve 3
4
Relay , power Power
windows (motors) 30 A
windows Power
sun roof (motor)
t---35 Heated
seats (power) 30 A
Power seats (motor)
17
Ignition Reserve t---switch X
18 Radio 5A (SRS
Airbag not fused)
136

(
70019401960 Specifications
Section 3 Electrical System
Group 38 Instrumentat ion
Fuel leve l sensor
Lever-type sensor (1982-86)
Volume
Empty ................... 0 L
Full ................. .... 60 L
(16 US gals)
Lever-type sensor (1987-)
Tubular-type se nsor (1986-)
Volume
Empty ............. , ..... 0 L
Full ..................... 60 L
(16 US gals)
Tubular-type
se nso r (7601780 1988-)
Volum e
Empty ................... 0 L
Full ..................... 80 L
(21 US gals)
Coo lant temperature sensor
Resistance at different temperatures
(1982-86)
Temperature
600e (140°F) ............ ..
900e (194°F) ............. .
1000e (212°F) ............. .
(1987 -)
Temperature
600e (140 °F) ............. .
900e (VWF) ............ . .
100De (212 °F) ............. .
Res istance
217±350
87±150
67±11 0
Resistance
5600
2060
1530
Resistance
296±1S 0
36±20
Resistance
00
2800
Resistance
00
363-3700
Lever-type sensor, incre ased-capac ity tank (1982-85)
Volum e
Empty ................ ... 0 L
Full .............. ....... 20 L
(S US gals)
Resistance
180
1 0
Lever-type sensor, increased-capac ity tank (1986-)
Volume
Empty extra tank . . . . . . . .. 0 L
Full extra tank
- extra tank
lever-type
sensor ................ 20 L
(S US gals)
-main tank lever-type
sensor . . . . . . . . . . . . . . .. 20 L
(S US gals)
Res istance
00
600
27 .S 0
137
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