Scania Electrical Wiring Diagrams. Circuit diagram

On this page you can download wiring diagrams for Scania trucks. Schemes together with descriptions are presented in PDF format. The diagrams presented in the collection are generalized for various vehicle modifications. But on the "Scania" diagrams there is some difference in the supply voltage and designation of elements that are not mandatory for all models, they are highlighted on the diagrams by rectangles from a dashed dotted line.

There is also a repair manual truck-freeworkshop.com/scania/

• List of components
• Wiring diagrams
• Connection diagram
• Electrical diagram
• Cable marking
• Incandescent lamps

Wire marking

56BR Low beam, right

           Fog lights

56VX Headlight dipped beam relay power supply - central electrical unit

56WA Headlamp wiper motor

56WAA Headlamp wiper motor

56WB Work light alarm

58 Parking lights (running lights)

58A Cab sign lighting

 Work lamp

 Tractor hitch light

58AA Cab sign lighting

58AV Rear fog lights

58АС Work lamp

58AD Work lamp, on the roof

58V Instrument lighting

58VA Instrument lighting

58E, EA Fog lights

Scania Electrical components Download

Basic electrical system, list of components Download

Wiring diagrams manual and list of components Download

Alarm and theft protection, VPS Description of operation with flashing code diagnostics Download

No throttle actuation in trucks with EDC and Scania retarder Download

Loss of throttle actuation in trucks with EDC, CAG and Scania retarder Download

Factory preparations for the installation of radio, CB radio, mobile phone and Alert signal Download

Starter motor Description of operation Work description Download

Relay for starter switch (4 series) Download

Coordinator Generation 3 Function description and troubleshooting Download

Förbindningsschema, Wiring diagram, Verbindungsplan, Elektrisch schema, Schéma de câblage, Diagrama eléctrico, Esquema de conexões, Schema elettrico, Kytkentäkaavio, Schemat połączeń Download

Immobiliser Function description Troubleshooting Work description Download

Eberspächer D1LCC auxiliary heater Function and work description Reading fault codes: Refer to group 18, Auxiliary heater, Operation unit CTT, D1LC and D1LCC. Download

Earth fault which interferes with the temperature gauge Applies to DC11 and DSC12 Download

Trip meter and outdoor temperature gauge. Fitting the temperature sensor  Routing the cable harness  Fitting the instrument Download

BNS 7 Wiring diagram, Download

Blocking of unintentional starter motor engagement Download

New varistor in the solenoid valve Download

FMS interface with trip computer Work Description Download

The cable harness in the A-pillar can cause electrical faults Download

BNS 6/BNS 7 Wiring diagram Download

New bulb in the roof sign illumination (Applicable to vehicles with roof sign illumination except CR19T.) Download

TC fault warnings in vehicles with ABS Applies to ABS vehicles without TC feature Download

Alternator and Battery Description of operation Work description Download

General troubleshooting in electrical systems and electronic control systems Download

Short life span of roof sign lighting bulbs on CR19T Download

Preparations for Satcom Work Description Download

Coolant heater, Webasto DW80 Work description, retrofitment Download

Replacement of headlamp lens Download

Modified fog and spotlamp unit Download

Unreliable operation of the lighting circuit Download

New switch for power windows Download

Fleet Analysis System 2 Retrofitting and troubleshooting Download

The tachometer displays the incorrect engine speed (RPM) Download

Test report for control units Download

Seat Description of operation and work description Fault diagnosis Type A, Luxury and Medium Download

Troubleshooting - earthing in frame Download

D1LC (Eberspächer) heater Work description, retrofitting Download

BNS 7 Förbindningsschema, Wiring diagram Download

FMS Download

BNS 6/BNS 7 Förbindningsschema, Wiring diagram Download

Damper element for rear light discontinued Download

BNS 6/BNS 7 Förbindningsschema, Wiring diagram Download

Fleet Management System, FMS Download

Engine hour counter Download

Wiring diagram Download

Electronic Level Control Wiring diagram Download

BNS 4.1/BNS 5.1 Nod D Download

Bus Stop Brake EWD Download

Wear indicator for disc brakes Download

ABS/TC Wiring Diagram Download

Safety system, tag axle ARA860 6x2*4 Circuit diagram Download

BNS 4.1/BNS 5.1 Node F, H Download

BNS 4.1/BNS 5.1 Node J Download

BNS 4/BNS Node A, X Download

ABS/TC Circuit diagram Download

Articulation control system, generation 3 Wiring Diagram Download

Air conditioning, Webasto CN94 / CL94 Download

Scania Retarder Scania Retarder Download

Automatic gearbox ZF ZF4/5HP500/590/600 From chassis No 1 840 218 Download

Flame start Wiring Diagram Download

Unit Injector Download

Whitesmoke limiter Wiring diagram/Circuit diagram Download

ELC Not Scania bodied, Download

ELC CN94 6x2/2 SBK 1 834 184 Download

Node C BNS 6/BNS 7 Wiring diagram, Download

Electric throttle Scania CV AB 1998 Download

Fuel Heater Download

ELC K/L/N Not Scania bodied, Download

Opticruise EWD Download

Bus stop brake From chassis No. SEU 1 833 587, SLA 3 506 867 EWD Download

Node C BNS 4.1/BNS 5.1 Download

EDC MS5 Download

SLD (Speed Limiting Device) Wiring Diagram, Download

Stop Motor Wiring Diagram, Download

Articulation control system, generation 4 Wiring Diagram, Download

Node G, K BNS 4.1/BNS 5.1 Download

Node I BNS 4/BNS 5 Download

Doors, doorsteps BNS 4.1/BNS 5.1 Download

ELC CN94 6x2/2 Scania CV AB 2002, Sweden Download

ABS/TC  6x2/2 Wiring Diagram, Download

ELC CL/CN94 4x2 Scania CV AB 2002, Sweden Download

Power supply and communication BNS 4.1/BNS 5.1 CV AB 2000, Download

Opticruise From chassis No: SBK 1 839 994 SLA 3 524 682 Download

Node A and battery slave unit BNS 6/BNS 7 Download

Automatic gearbox ZF, with relay controlled retarder ZF4/5HP500 Download

Electronic Level Control Bodied by Scania, Wiring Diagram, Download

Air Suspension Wiring Diagram, K/L AB 2001, Download

EEB (Electronic Exhaust Brake) K/L CV AB 2001, Download

Ignition system for natural gas engines  Scania CV AB 2002, Download

Scania CV AB 1998, Unit Injector Circuit diagram Download

Safety system, tag axle ARA860 6x2*4 Download

Trip computer, FMS Circuit diagram/Wiring diagram, Download

Emergency Stop K/L Emergency Stop Download

EDC MS5 Circuit diagram, Scania CV AB 1999, Download

Node B BNS 6/BNS 7 BNS 6/BNS 7 Download

Node E BNS 4/BNS 5 Scania CV AB 1999, Download

Automatic gearbox ZF, for K-bus with EDC MS6 ZF5/HP602 Download

Accelerator pedal blocker Wiring Diagram, Download 

Air suspension, electronically controlled (ELC) 6x4 and 8x4 with load transfer From chassis No. 1 207 526 Scania CV AB 2001, Download

Electrical center rear and electrics in rear assembly From chassis No 1 839 512 Download

Electrical center, front K/L/N Wiring Diagram, Download

Node H Scania CV AB 1998, Download

Differential Lock Wiring Diagram, Download

Trip computer, FMS Circuit diagram/Wiring diagram, Download

EXB exhaust brake, automatic Wiring diagram Download

Node I Scania CV AB 1998, Sweden Download

Electrical center F94 Download

Circuit diagram basic electrical system 0-208 F94 Download

Current path 1 - 208  Circuit diagram, Download

Automatic gearbox ZF Wiring Diagram, Download

Frame and engine F94 Download

Instrument panel and electrics in front assembly Download

Instrument panel and electrics in front assembly Download

Doors, doorsteps EWD Download

Node C Download

Frame and engine CN/CL From chassis No 1 839 994 Download

Electrical center K/L/N From chassis No 1 839 994 Download

Current path 228 - 454 K/L/N From chassis No 1 839 512 Download

Node B, articulated bus Download

Frame and engine CN/CL Download

Air suspension, manually controlled 4x2 Download

Automatic gearbox ZF, generation 2 ZF4/5HP502/592/602 Download

Comfort Shift SBK 1 839 994 SLA 3 524 682 Download

Side marker lights Download

Node D, articulated bus Download

Comfort Shift K/L Wiring Diagram, Download

Side marker lights Scania CV AB 2002, Download

AM/FM Radio, 12V Vehicles manufactured after 0002 Download

Electrical center rear and electrics in rear assembly Download

Current path 456 - 568 K/L/N From chassis No 1 839 512 Download

Instrument panel and electrics in front assembly K/L/N From chassis No 1 839 512 Download

Current path 228 - 454 K/L/N Download

Node D 4x2 Scania CV AB 1998, Sweden Download

Current path 456 - 568 K/L/N Circuit diagram, Download

Node A, X Scania CV AB 1998, Sweden Download

AM/FM Radio Vehicles manufactured after 9704 Download

Automatic gearbox ZF, generation 2 ZF4/5HP502/592/602 Download

Air suspension, electronically controlled (ELC) 4x2 and 6x4, 8x4 without load transfer Scania CV AB 2001, Sweden Download

Node E Download

BNS, supply and communication Download

Electrical center CN/CL Download

Electrical center, front K/L/N From chassis No 1 839 512 Download

Node J Download

Electric cab tilt pump Crew cab Download

Circuit diagram basic electrical system 210-366 F94 Download

Node G Download

Mechanical gearbox Wiring Diagram, K/L/N Download

Doors, controlling Download

Instrument panel and electrics in front assembly CN/CL Download

Seats, driver position Vehicles manufactured after 9704 Download

Auxiliary heater Eberspächer D1LCC Download

Node F Download

Node B 4x2 Download

Recirkulation damper Vehicles manufactured after 9804 Download

Air suspension, electronically controlled 6x2, 6x2/4, 8x2 From chassis No. 1 207 526 Download

Extra tag axle Download

Current path 1 - 208 K/L/N From chassis No 1 839 512 Download

Instrument panel and electrics in front assembly K/L/N Download

Battery master switch, single-pole ADR Download

ABS/TC Wabco ”D”, 6 circuit Download

ELC Air suspension, 6x4, 8x4 Circuit diagram Download

FMS, Satellite aerial Wiring diagram Download

Air suspension, electronically controlled (ELC) 6x2 Download

Voltage divider for trailer Wiring diagram Download

Crew cab Download

Speed limiter (SLD) From chassis No. 1 211 477 Download

Trailer brake Download

Battery isolator, not ADR Download

Basic electrical system, Instrument panel Vehicles manufactured after 0002 Download

Unit Injector PDE Wiring diagram Download

EBS Circuit diagram Download

CTT with Eberspächer Download

Air suspension, electronically controlled (ELC) 4x2 and 6x4 without load transfer Download

Unit Injector Circuit diagram Download

Basic electrical system, list of components Vehicles manufactured after 0002 Download

AC with mechanical water valve Download

EDC Scania CV AB 2001, Sweden Download

Basic electrical system, Central electric unit Vehicles manufactured after 0002 Download

Connecting power to body Download

Auxiliary heater, Webasto 80, with ADR SSS 1229 254 SNL 4374 722 SAN 9023 073 Download

Axle weight gauge Download

Dual circuit steering Download

EBS 2.2 SSS 1 254 424 SAN 9 046 543 SNL 4 420 708 Wiring Diagram, Download

Automatic gearbox GA750/751/851/851R ch nr 1235 759 Download

Automatic exhaust brake (EEB) Download

Gearbox, GRSH900/R Download

Recirkulation damper Vehicles manufactured after 9804 Download

ABS Bosch CP12  Circuit diagram Download 

EDC MS6.2 Unit Injector Download

ADR chassis isolated system Download

EDC S6 Wiring Diagram, Download

Basic electrical system, Frame and engine Vehicles manufactured after 0002 Download

VPS, alarm and theft protection Vehicles manufactured after 9804 Download

Basic electrical system, Cab roof Vehicles manufactured after 0002 Download

Seats, passenger position Vehicles manufactured after 9704 Download

Seats, electrical connection to chassis Download

Flame start Download

Unit Injector PDE Circuit diagram Download

Manual exhaust brake (EXB) Download

Retarder with automatic exhaust brake (EEB) Vehicles manufactured after 9908 Download

Auxiliary heater, Webasto 80 SSS 1229 254 SNL 4374 722 SAN 9023 073 Download

Opticruise Vehicles manufactured after 9901 Download

Opticruise, GR Vehicles manufactured after 9901 Download

External control of engine Circuit diagram, Schaltplan, Download

Opticruise, GRS Vehicles manufactured after 9901 Download

ABS/TC Wabco ”D”, 6 circuit Vehicles manufactured after 9906 Download

Automatic chassis lubrication (ACL) Download

ABS/TC Wabco ”D”, 4 circuit Download

Retarder with automatic exhaust brake (EEB) Vehicles manufactured after 9908 Download

EDC S6 Circuit diagram, Download

ETC with A/C Vehicles manufactured after 9804 Download

Steering tag axle Download

Retarder Vehicles manufactured after 9908 Download

Tag axle lift, Axle weight limiter Download

Air suspension, manually controlled 4x2 Download

Brake light test Download

Engine hour counter Download

ADR chassis earthed system Download

EBS 2.2 SSS 1 254 424 SAN 9 046 543 SNL 4 420 708 Download

Airbag and seat-belt tensioner Download

Basic electrical system, list of components Right-hand-drive Download

Gearbox, GRS890/900 Download

Basic electrical system, Frame and engine Right-hand-drive, Download

Basic electrical system, Cab roof Left-hand-drive Download

Eberspächer cab heater Download

ABS, 4 circuit, Bosch Download

Circuit diagram basic electrical system Sheet 1, current path 1 - 112 Download

ABS, 6 circuit Download

Refrigerator Download

Circuit diagram basic electrical system Sheet 4, current path 322 - 415 Download

Retarder Scania CV AB 2001, Sweden Download

Brake pressure reduction front axle Wiring diagram/Circuit diagram Download

EBS CV AB 1997, Sweden Scania Download

Basic electrical system, Cab roof Right-hand-drive, Download

Warning lamp for folding boarding step Download

Coordinator generation 4, with EDC S6 Download

Opticruise wiring diagram Download

Basic electrical system, Central electric unit Download

Background lighting in cab Download

Wear indicator for disc brakes Download

Basic electrical system, Central electric unit Right-hand-drive, Download

Electronic cab temperature control (ETC) with air conditioning (AC) Download

ABS/TC Wabco ”D”, 6 circuit Download

Trip and temperature gauge Download

Seats, driver position Download

AM/FM Radio Download

Basic electrical system, Instrument panel Left-hand-drive Download

VPS, alarm and theft protection Download

Electric-gas and ignition system for natural gas engines Wiring Diagram, Download

Circuit diagram basic electrical system Sheet 3, current path 210 - 320 Download

Gearbox GR900 Download

Auxiliary heater Webasto 80 Download

High positioned headlights for vehicles with snow-plough Download

Retarder with automatic exhaust brake (EEB) Download

Automatic gearbox GA750/751/851/851R Download

Driver concentration signal Download

Seats, passenger position Download

Diagnostic socket Scania CV AB 1998, Download

Electronic cab temperature control (ETC) Download

Circuit diagram basic electrical system Sheet 2, current path 114 - 208 Download

Differential locks 6x6 From chassis No. 1 223 Download

Diff. locks 6x4, 8x4 From chassis No. 1 219 969 Download

Scania Electrical wiring diagram Download

Short-stop heater Download

Circuit diagram basic electrical system Sheet 7, current path 626 - 738 Download

Circuit diagram basic electrical system Sheet 6, current path 530 - 625 Download

Basic electrical system, Frame and engine Download

Gearbox GRS890 4x4, 6x6 Download

Coordinator Circuit diagram, Schaltplan, Download

Diagnostics panel Vehicles manufactured after 9911 Download

Circuit diagram basic electrical system Sheet 8, current path 740 - 834 Download

Coordinator generation 4, with EDC MS6 Download

Air conditioning (A/C) Download

Basic electrical system, Instrument panel Right-hand-drive, Download

Circuit diagram basic electrical system Sheet 5, current path 416 - 529 Download

Diff. locks 4x2, 6x2, 8x2, 6x2/4 From chassis No. 1 219 969 Download

Differential locks 4x4 From chassis No. 1 223 Download

Coordinator Wiring Diagram, Download

Automatic gearbox GA750/751/752 and GA851/852 including variants (Allison World Transmission of type MD or HD) Troubleshooting Download

Automatic Gearboxes GA750/751/752 and GA851/852 with variants (Allison World Transmission type MD and HD respectively) Function and work description Download

Basic electrical system, list of components Download

Wabco ABS/TC ”C3” bus 6-channel system Work description Download

EWD Scania Download

Electronic level control ELC 6x2 B Work description Download

EBS Function description Download

EBS Troubleshooting with the diagnostic lamp Download

Bosch ABS/TC ”CP12” 4-channel system Work description Download

Comfort Shift, CS Work description Download

Electronic level control ELC 4x2 A/B Work description Download

Wabco ABS/TC ”D” 4 and 6 circuit systems Download

ELC generation 2 Work description Download

Testing brake system Applies to vehicles with EBS Download

Wabco ABS/TC "D" 4 and 6 channel system Function and work description Download

Scania Retarder Function description Download

ABS/TC Description of operation Scania CV AB 1995-10 Download

ELC generation 2 Description and Operation 1 587 071 106 335 With updates concerning the new ELC generation 2.1A control unit, introduced 98-08. Download

EDC MS5 for injection pump Download

Fuel system with unit injector PDE and EDC MS6 Troubleshooting Download

EDC MS5 for injection pump Work description Download

EDC MS5 in-line injection pump Fault diagnosis Download

Fuel system with unit injector PDE and EDC MS6 Download

Wiring diagram handbook with list of components For LHD and RHD trucks Download

Opticruise Description of operation and work description Download

Flame start Scania CV AB 1997-08, Sweden Download

Scania HPI injection system and EDC S6 troubleshooting Download

Fuel system with unit injector PDE and EDC MS6 Function description Download

Comfort Shift, CS Description of operation Download

Special functions Using the power take-off Function and Work Description Download

Scania HPI Injection System and EDC S6 Description of operation Download

Wiring Manual

The Wiring Diagrams Guide is a supplement to the wiring diagrams, containing the information you need to read these diagrams. The manual contains a list of components with data for all devices and assemblies of the electrical system. There are also eight layouts showing the location of the instruments and assemblies on the vehicle. There are tables for marking wires and parameters of lighting lamps. Finally, there are two tables showing which circuits are in the basic standard equipment and which are in the optional equipment, and the corresponding diagrams.

List of components

The list contains data on:

- component code designation;

- the function performed by the component;

- layouts (A - H) showing

component location;

- number and coordinates of the connection diagram;

- a circuit diagram with

chain number.

Explanation of the code designation The code designation consists of a letter followed by a series of numbers (alphanumeric code). The letter indicates what type the component belongs to (see list on page 6).