Volvo BL71B. Wiring diagram

Diagram

Description

Wiring diagram SCH02

Battery supply, preheating

Wiring diagram SCH03

Fuel supply, engine safety

Wiring diagram SCH04

ECU communication, Care Track

Wiring diagram SCH05

Hydraulic controls 1

Wiring diagram SCH06

Hydraulic controls 2

Wiring diagram SCH07

Hydraulic controls 3

Wiring diagram SCH08

Hydraulic controls 4

Wiring diagram SCH09

Hydraulic controls 5

Wiring diagram SCH10

Hydraulic controls 6

Wiring diagram SCH11

TECU, Powershift transmission (option)

Wiring diagram SCH12

Powershuttle transmission (standard)

Wiring diagram SCH13

Main lights, working lights, fog lights

Wiring diagram SCH14

Hazard lights, high/low beam

Wiring diagram SCH15

Horns, rotating beacons, brakes

Wiring diagram SCH16

Wipers, washers

Wiring diagram SCH17

AC, heater

Wiring diagram SCH18

Radio accessory

Wiring diagram SCH19

Ground distribution

Wiring diagram SCH20

Ground distribution

Designation

Function

Row/ Column

AL3201

Alternator

E 5

BA3101

Battery

E 6

BA3102

Battery (option)

E 6

FC1

Main fuse, preheating

E 7

FC2

Main fuse, electrical system

E 7

FC4

Main fuse, air conditioning, working lamps

E 7

FU01

Main fuse, starter motor relay (RE3301)

D 7

FU02

Main fuse, preheating

С 7

FU06

Ignition switch

В 8

HE2501

Preheating coil

С 5

M03301

Starter motor

D 5

RE2501

Preheating relay

С 7

RE3301

Starter relay

D 7

SW3101

Battery disconnect switch

E 6

SW3301

Ignition key switch

A-B 7

VECU

Vehicle Electronic Control Unit

C6

Designation

Function

Row/ Column

DI01

Diode

E 6

DI02

Diode

E 6

DI05

Diode

C6

FC3

Main fuse, starter relay (RE3101), main relay 2 (RE3102)

E 8

FU8

Starter motor relay (RE3101)

E 7

IECU1

Instrument Electronic Control Unit (instrument panel, right)

B-C 8

IM3812

Hourmeter (option)

D 6

MA2307

Engine stop

E 6

R3201

Resistor, alternator

C6

RE3101

Starter relay

E 6

SE2203

Engine oil pressure

C6

SE2303

Fuel level

B6

SE2502

Air filter clogging sensor

C6

SE2706

Engine coolant circuit, temperature

B6

SE8501

Seatbelt lock

В 6

VECU

Vehicle Electronic Control Unit

E 7

Designation

Function

Row/ Column

AN3903

Antenna, Care Track basic GPS

С 8

AN3904

Antenna, Care Track satellite

С 8

DI03

Diode

E 7

DI04

Diode

E 7

FU20

TECU

E 8

FU21

VECU

E 8

FU22

Diagnosis connectors, WECU

E 8

FU43

TECU

E 8

FU44

IECU1 (side panel)

E 8

FU45

IECU2 (front panel)

D 8

IECU1

Instrument Electronic Control Unit (instrument panel, right)

D 7

IECU2

Instrument Electronic Control Unit (instrument panel, front)

D 8

R3601

Terminating resistor

E 6

TECU

Transmission Electronic Control Unit

E 5

VECU

Vehicle Electronic Control Unit

B6

WECU

Care Track Electronic Control Unit

В 8

Designation

Function

Row/ Column

IECU1

Instrument Electronic Control Unit (instrument panel, right)

В 7-8

IECU2

Instrument Electronic Control Unit (instrument panel, front)

C-D 7

LC9108

ISO pattern (optional equipment for pilot control option)

С 6

LC9109

SAE pattern (optional equipment for pilot control option)

C6

LC9110

Hydraulic servo lock

D 6

MA9112

Lever lockout, loader (BL70B/BL71B)

B6

MA9139

ISO/SAE (optional equipment for pilot control option)

B6

MA9183

Lever lockout, excavator (pilot control option)

E 6

RE9402

Lever lockout, excavator (pilot control option)

D 7

SW9119

Backhoe boom lock (BL60B, BL61B, BL70B mechanical excavator control, BL71В mechanical excavator control)

E 6-7

SW9130

ISO/SAE switch (optional equipment for pilot control option)

B-C 7

SW9145

Lever lockout, loader (BL70B/BL71B)

A-B 7

SW9402

Lever lockout, excavator (pilot control option)

D 6

Designation

Function

Row/ Column

FU23

Boom suspension (BSS), craning

E 8

IECU1

Instrument Electronic Control Unit (instrument panel, right)

В 8

MA9103

Boom suspension 2 (option)

D 5

MA9114

Boom suspension 1 (option)

D 5

MA9116

Pump power mode regulation (BL70B/BL71B)

C6

MA9126

Hydraulic safety valve

E 5

MA9149

Craning mode 2 (option)

E 5

MA9178

Craning mode 1 (option)

E 5

RE9102

Boom suspension system

D 7

SE9106

Hydraulic oil filter clogging sensor

B6

SE9401

Overload pressure (craning)

B6

SW9128

Craning mode (option)

D-E 7

SW9148

Boom suspension system (option)

С 7

VECU

Vehicle Electronic Control Unit

C-E 8

Designation

Function

Row/ Column

IECU1

Instrument Electronic Control Unit (instrument panel, right)

В 8

MA9136

X1 selector, 4in1/extendable dipper (option)

E 6

PWM9123

Proportional valve, X1, 4in1 (option)

F 6

PWM9124

Proportional valve, X1, extendable dipper (option)

E 6

PWM9145

Proportional valve, X3 left (hammer/aux option)

С 7

PWM9146

Proportional valve, X3 left (hammer/aux option)

В 7

SE9105

Hydraulic oil temperature Hydraulic oil temperature, high 97 °C (206.6 °F) Hydraulic oil temperature, low 10 °C (50 °F)

C-D 5

SW9101

Hammer authorisation (option)

A-B 6

SW9113

4 in 1 (X1 primary) (option)

D 7

SW9114

Extendable dipper (X1 secondary) (option)

D 6

SW9129

X1 Hold function (option)

C6

SW9131

Auxiliary authorisation (option)

B6

SW9159

Hammer foot switch (option)

E 6

SW9161

Auxiliary (option)

D 5

VECU

Vehicle Electronic Control Unit

B-F 8

Designation

Function

Row/ Column

FU27

4WD, differential lock, quick attach backhoe/loader, sideshift, stabilisers, rotating beacon, hand tool, rear work lights

F 7

MA9109

Quickfit excavator (option)

С 6

MA9137

Sideshift (BL61B/BL71B)

D 6

MA9143

Holding magnet, float position

E 6

MA9150

Holding magnet, return to dig (BL70B/BL71B)

E 6

MA9150

Holding magnet, return to dig (BL60B/BL61B)

E 6

MA9182

Hand tool valve (option)

D 6

MA9191

Quickfit loader (option)

В 6

SW9104

Quick attachment, backhoe (option)

С 7

SW9105

Quick attachment, loader (option)

В 7

SW9116

Bucket positioning

E 7

SW9120

Sideshift (BL61B/BL71B)

D 7

SW9127

Hand tool (option)

D 7

VECU

Vehicle Electronic Control Unit

B-C 8