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CONTENT
3 Electrical and Information System
Cables and fuses,
wiring diagram
VOLVO CONSTRUCTION EQUIPMENT
SERVICE MANUAL
l60F/L70F/L90f
Content
ELEC. SYSTEM; WARNING
SYSTEM; INFORMATION
SYSTEM; INSTRUMENTS
37 CABLE; FUSE; RELAY
370 General, common info about 371 -
379
Chassis connection
Regarding: L60F, L70F, L90F
Pos. Serves
1 Battery
2 Engine, starter motor, and alternator
3 Front frame (31F)
4 Rear frame and secondary steering pump
5 Cab (31C)
V (^1 )
4
3
5
Fig.1 Frame ground connections
Component list: Alternator, batteries, capacitors,
electronic units, voltage outlet
Regarding: L60F, L70F
Component
Designa‐
Component
Designa‐
Voltage outlet
DA
DB DC DD
DI
DI
DI
R
R
R
Indicator fuse test
Component list: Alternator, batteries, capacitors, electronic units, voltage outlet
Regarding: L90F
Component
Designa‐
V 30K
BA3101 AL
E-ECU
V2-ECU
CR
BA
SO3901/SO
CU9901 I-ECU
V-ECU
PO
PO
ECC
Fig.4 Batteries, electronic units and voltage sockets
DA
DB DC DD
R
R
R
Indicator fuse test
b) Located in lever carrier DB DC DD
R
R R
Indicator fuse test
- 370 General, common info about 371 - 37 CABLE; FUSE; RELAY
- Chassis connection
- voltage outlet Component list: Alternator, batteries, capacitors, electronic units,
- voltage outlet Component list: Alternator, batteries, capacitors, electronic units,
- Component list: Diodes
- Component list: Fuses
- Component list: Fuses
- Component list: Heating coils, instruments, service socket
- Component list: Lights
- Component list: Solenoid valves
- Component list: Solenoid valves
- Component list: PWM valves
- Component list: PWM valves
- Component list: Motors, resistors, monitoring system
- Component list: Relays
- Component list: Relays
- Component list: Signals, shift solenoids
- Component list: Sensors
- Component list: Sensors
- Component list: Sensors
- Component list: Switches
- Component list: Switches
- Cable and component marking explanations
- Cable and component designations
- Electrical symbols and designations
- Wiring diagram
- Engine cooling, fuel level
- Wiring diagram
- Sensors connected to E-ECU
- Wiring diagram
- Sensors connected to E-ECU
- Wiring diagram
- Preheating, EGR-valve, electrically heated fuel filter
- Wiring diagram
- Accelerator pedal, hand throttle
- Wiring diagram
- Wiring diagram
- Wiring diagram
- Voltage feed control units
- Wiring diagram
- Wiring diagram
- Wiring diagram
- Wiring diagram
- Flashing hazard lights, direction indicators, interior lighting
- Wiring diagram
- Electrically controlled battery disconnect switch
- Wiring diagram
- Wiring diagram
- Wiring diagram
- Wiring diagram
- Work lights rear, continuous/gear-dependent
- Wiring diagram
- Radio, voltage converter 20A
- Wiring diagram
- Radio, voltage socket, audible signals
- Wiring diagram
- Wiring diagram
- Sensor transmission, mode selector, differential lock
- Wiring diagram
- Sensor transmission, mode selector, differential lock
- Wiring diagram
- Sensor transmission, fully automatic downshifting
- Wiring diagram
- shifting Axle oil temperature, sensor transmission, fully automatic down‐
- Wiring diagram
- Wiring diagram
- Wiring diagram
- Wiring diagram
- Wiring diagram
- Lever steering (CDC) Angle sensor
- Wiring diagram
- Wiring diagram
- Windshield wiper and windshield washer
- Wiring diagram
- Operator's seat, ambient temperature
- Wiring diagram
- Back-up camera, rear-view mirrors
- Wiring diagram
- Wiring diagram
- Wiring diagram
- Wiring diagram
- Wiring diagram
- Working hydraulics with 4th hydraulic function
- Wiring diagram
- Boom Suspension System, hydraulic oil temperature / level
- Wiring diagram
- lock 4th function Working hydraulics, attachment lock, 3rd hydraulic function, lever
- Wiring diagram
- Working hydraulics, 3rd hydraulic function with hold function
- Wiring diagram
- Electrically controlled hydraulic pump
- Wiring diagram
- Working hydraulics with joystick
- Wiring diagram
- Alternator AL3201 Alternator Wiring diagram 301 page tion Function Wiring diagram
- Capacitor C01(a) Delayed cut-out RE18 Wiring diagram 303 page
- Battery BA3101 Battery Wiring diagram 301 page - Wiring diagram 308 page
- BA3102 Battery Wiring diagram 301 page
- Electronic unit E-ECU Engine control unit Wiring diagram 202 page - Wiring diagram 203 page - Wiring diagram 204 page - Wiring diagram 206 page - Wiring diagram 303 page - Wiring diagram 310 page
- ECC Climate control unit Wiring diagram 302 page
- Wiring diagram 310 page
- Wiring diagram 805 page
- Wiring diagram 806 page
- I-ECU Instrument control unit Wiring diagram 205 page
- Wiring diagram 301 page
- Wiring diagram 302 page
- Wiring diagram 303 page
- Wiring diagram 304 page
- Wiring diagram 305 page
- Wiring diagram 306 page
- Wiring diagram 309 page
- Wiring diagram 310 page
- Wiring diagram 312 page
- Wiring diagram 403 page
- Wiring diagram 404 page
- Wiring diagram 408 page
- Wiring diagram 501 page
- Wiring diagram 801 page
- Wiring diagram 904 page
- V-ECU Vehicle control unit Wiring diagram 201 page tion Function Wiring diagram - Wiring diagram 302 page - Wiring diagram 303 page - Wiring diagram 310 page - Wiring diagram 315 page - Wiring diagram 402 page - Wiring diagram 403 page - Wiring diagram 404 page - Wiring diagram 407 page - Wiring diagram 408 page - Wiring diagram 501 page - Wiring diagram 601 page - Wiring diagram 604 page - Wiring diagram 801 page - Wiring diagram 802 page - Wiring diagram 903 page - Wiring diagram 904 page - Wiring diagram 913 page
- V2-ECU Vehicle control unit Wiring diagram 302 page - Wiring diagram 310 page - Wiring diagram 601 page - Wiring diagram 602 page
- CR3901 Radio (with SO3901) Wiring diagram 314 page
- Radio (with SO3902) Wiring diagram 315 page
- CU9901 Central lubrication unit Wiring diagram 913 page
- SO3901 Voltage converter Wiring diagram 315 page
- SO3902 Voltage converter (20A) Wiring diagram 314 page
- PO3901 Voltage socket 24 V Wiring diagram 315 page (socket)
- PO3902 Voltage socket 12 V (with SO3902) Wiring diagram 314 page
- Voltage socket 12 V (with SO3901) Wiring diagram 315 page - FU
- FU - RE01 RE DE DF DG DH - RE - RE06 RE07 RE08 RE09 RE10 RE11 RE - RE13 RE14 RE15 RE16 RE17 RE - RE04 RE - RF - DI - DI - DI - DI - DI - DI - DI - DI - DI18 DI - DI
- R - R - R - R - R - R - C - P - V 30K - FU85 FU
- Alternator AL3201 Alternator Wiring diagram 301 page tion Function Wiring diagram
- Capacitor C01(a) Delayed cut-out RE18 Wiring diagram 303 page
- Battery BA3101 Battery Wiring diagram 301 page - Wiring diagram 308 page
- BA3102 Battery Wiring diagram 301 page
- Electronic unit E-ECU Engine control unit Wiring diagram 202 page - Wiring diagram 203 page - Wiring diagram 204 page - Wiring diagram 206 page - Wiring diagram 303 page - Wiring diagram 310 page
- ECC Climate control unit Wiring diagram 302 page
- Wiring diagram 310 page
- Wiring diagram 805 page
- Wiring diagram 806 page
- I-ECU Instrument control unit Wiring diagram 205 page
- Wiring diagram 301 page
- Wiring diagram 302 page
- Wiring diagram 303 page
- Wiring diagram 304 page
- Wiring diagram 305 page
- Wiring diagram 306 page
- Wiring diagram 309 page
- Wiring diagram 310 page
- Wiring diagram 312 page
- Wiring diagram 403 page
- Wiring diagram 404 page
- Wiring diagram 408 page
- Wiring diagram 501 page
- Wiring diagram 801 page
- Wiring diagram 904 page
- V-ECU Vehicle control unit Wiring diagram 201 page tion Function Wiring diagram - Wiring diagram 302 page - Wiring diagram 303 page - Wiring diagram 310 page - Wiring diagram 315 page - Wiring diagram 402 page - Wiring diagram 403 page - Wiring diagram 404 page - Wiring diagram 407 page - Wiring diagram 408 page - Wiring diagram 501 page - Wiring diagram 601 page - Wiring diagram 604 page - Wiring diagram 801 page - Wiring diagram 802 page - Wiring diagram 903 page - Wiring diagram 904 page - Wiring diagram 908 page - Wiring diagram 913 page
- V2-ECU Vehicle control unit Wiring diagram 302 page - Wiring diagram 310 page - Wiring diagram 601 page - Wiring diagram 602 page
- CR3901 Radio (with SO3901) Wiring diagram 314 page
- Radio (with SO3902) Wiring diagram 315 page
- CU9901 Central lubrication unit Wiring diagram 913 page
- SO3901 Voltage converter Wiring diagram 315 page
- SO3902 Voltage converter (20A) Wiring diagram 314 page
- PO3901 Voltage socket 24 V Wiring diagram 315 page (socket)
- PO3902 Voltage socket 12 V (with SO3902) Wiring diagram 314 page
- Voltage socket 12 V (with SO3901) Wiring diagram 315 page - FU
- FU - RE01 RE DE DF DG DH - RE - RE06 RE07 RE08 RE09 RE10 RE11 RE - RE13 RE14 RE15 RE16 RE17 RE - RE04 RE - RF - DI - DI - DI - DI - DI - DI - DI - DI - DI18 DI - DI
- R - R - R - R - R - R - C - P - V 30K - FU85 FU
- DI01 Lock-out diode Wiring diagram 302 page Designation Function Wiring diagram
- DI03 Lock-out diode Wiring diagram 302 page
- DI05 Quench diode Wiring diagram 302 page
- DI06 Lock-out diode Wiring diagram 305 page
- DI07 Lock-out diode Wiring diagram 305 page
- DI08 Lock-out diode Wiring diagram 305 page
- DI09 Lock-out diode Wiring diagram 305 page
- DI11 Delayed cut-out RE18 Wiring diagram 303 page
- DI12 Quench diode Wiring diagram 901 page
- Wiring diagram 902 page
- Wiring diagram 912 page
- DI13 Quench diode Wiring diagram 901 page
- Wiring diagram 902 page
- Wiring diagram 912 page
- DI14 Quench diode Wiring diagram 901 page
- Wiring diagram 902 page
- Wiring diagram 912 page
- DI15 Quench diode Wiring diagram 901 page
- Wiring diagram 902 page
- Wiring diagram 912 page
- DI16 Lock-out diode Wiring diagram 303 page
- DI17 Lock-out diode Wiring diagram 901 page
- Wiring diagram 902 page
- Wiring diagram 912 page
- DI18 Lock-out diode Wiring diagram 901 page
- Wiring diagram 902 page
- Wiring diagram 912 page
- DI19 Lock-out diode Wiring diagram 901 page
- Wiring diagram 902 page
- Wiring diagram 912 page
- DI20 Lock-out diode Wiring diagram 903 page
- DI21 Lock-out diode Wiring diagram 903 page
- DI22 Lock-out diode Wiring diagram 801 page Designation Function Wiring diagram
- DI23 Lock-out diode Wiring diagram 801 page
- DI3101 Lock-out diode Wiring diagram 308 page
- DI3102 Lock-out diode Wiring diagram 308 page
- DI3103 Lock-out diode Wiring diagram 308 page
- DI3104 Quench diode Wiring diagram 308 page
- DI9101 (a) Quench diode Wiring diagram 904 page
- DI9102 (b) Quench diode Wiring diagram 912 page
- DI9103 (b) Lock-out diode Wiring diagram 902 page - Wiring diagram 912 page
- a) Located by MA - FU DA
- FU - RE01 RE DE DF DG DH - RE - RE06 RE07 RE08 RE09 RE10 RE11 RE - RE13 RE14 RE15 RE16 RE17 RE - RE04 RE - RF - DI - DI - DI - DI - DI - DI - DI - DI - DI18 DI - DI
- R - R - R - R - R - R - C - P - V 30K
Component list: Fuses
Regarding: L60F, L70F
IMPORTANT! Always use a fuse with correct rating.
Designation A Function Wiring diagram
FU01 5 Brake lights Wiring diagram 501 page 130
FU03 15 Work lights cab front Wiring diagram 305 page 98
Double work lights cab front Wiring diagram 312 page 108
FU04 5 Voltage feed RE14 Wiring diagram 302 page 92
FU05 5 Instrument lighting Parking light left front Left front side light Parking light right rear
Wiring diagram 304 page 96
FU06 5 Parking light right front Right front side light Parking light left rear Lighting license plate
Wiring diagram 304 page 96
FU07 5 Low beam, left Wiring diagram 304 page 96
FU08 5 Low beam, right Wiring diagram 304 page 96
FU09 10 Back-up alarm Wiring diagram 315 page 114
FU10 5 High beam, right Wiring diagram 304 page 96
FU11 5 High beam, left Wiring diagram 304 page 96
FU12 5 15RA feed for voltage converter (20A) Wiring diagram 314 page 112
15RA feed for voltage converter Wiring diagram 315 page 114
FU13 15 Work lights front Work lights attachment
Wiring diagram 305 page 98
FU14 5 Direction indicators Wiring diagram 306 page 100
FU15 15 Work lights cab, rear Wiring diagram 305 page 98
Double work lights cab rear Wiring diagram 312 page 108 Work lights, automatic back-up light Wiring diagram 313 page 110
FU16 15 Work lights radiator casing Wiring diagram 305 page 98
FU17 10 Voltage feed I–ECU, hold voltage RE13 Wiring diagram 302 page 92
FU18 10 Voltage socket 24 V Wiring diagram 315 page 114
FU19 15 Headlights Wiring diagram 304 page 96