Dacia Logan II 2018 Wiring Diagrams (L52) – K9K872 1.5 Blue dCi 70kW Electrical Schematics | JR5 Transmission

Vehicle Coverage

• Model: Dacia Logan II

• Platform: L52

• Model Year: 2018

• Engine: K9K872 – 1.5 Blue dCi – 70kW

• Transmission: JR5

• Electrical platform: TECNM

Manual Overview

This professional workshop wiring manual provides complete electrical schematics for the Dacia Logan II L52 platform, allowing technicians and specialists to accurately diagnose electrical faults, trace circuits, and understand communication between vehicle modules.

The manual includes engine management circuits, electrical distribution systems, CAN networking, safety systems, passenger comfort electronics, dashboard instrumentation, and lighting circuits, organized by vehicle subsystem for fast troubleshooting.

Technical Highlights

• Complete vehicle electrical wiring diagrams

• ECU connector details and component pinouts

• CAN network communication diagrams

• Fuse and relay board layouts

• Power distribution and grounding circuits

• Engine management wiring

• Dashboard and instrument cluster circuits

• Lighting and signalling systems

• Passenger comfort electronics

• Harness routing diagrams

Table of Content

Technical criteria

Anti-theft

• Anti-intrusion alarm

• Anti-theft switch

• Bonnet switch

• Door boot locking switch

• Door locking

• Keyless vehicle and hands-free access

• Stop & start switch

• Transponder

Axle assembly

• Anti-lock braking system and directional stability control

• Handbrake warning light

• Power assisted steering

Connectors

• Connector details — cigarette lighter

• Connector details — alternator

• Connector details — fuel manifold pressure sensor

• Connector details — starting switch

• Connector details — electromagnetic horn

• Connector details — gear selector switch

• Connector details — cruise control / limiter / start-stop control

• Connector details — ABS / ESP computer

• Connector details — fuel flow actuator

• Connector details — gearbox neutral sensor & reversing lights

• Connector details — passenger compartment fan assembly

• Connector details — fan speed resistance unit

• Connector details — brake servo vacuum sensor

• Connector details — injection computer

• Connector details — coolant gas pressure sensor

• Connector details — parking aid computer

• Connector details — particle filter differential pressure sensor

• Connector details — tailgate lock

• Connector details — central locking switch

• Connector details — electric window controls

• Connector details — rear-view mirror control

• Connector details — combined wiper washer switch

• Connector details — air intake flap

• Connector details — TDC sensor

• Connector details — EGR temperature sensor

• Connector details — brake switch

• Connector details — transponder ring

• Connector details — economy mode control

• Connector details — rear lights

• Connector details — clutch switch

• Connector details — engine fan unit

• Connector details — monolever control

• Connector details — stop & start switch

• Connector details — windscreen wiper motor

• Connector details — washer pump

• Connector details — headlights

• Connector details — fuel pump relay

• Connector details — injection locking relay

• Connector details — instrument panel

• Connector details — vehicle speed sensor

• Connector details — preheating unit

• Connector details — passenger compartment fuse and relay box

• Connector details — radio

• Connector details — air conditioning control panel

• Connector details — steering wheel angle sensor

• Connector details — engine fuse and relay box

• Connector details — passenger compartment computer

• Connector details — clutch pedal switch

• Connector details — rotary switch

• Connector details — airbag pretensioner computer

• Connector details — power supply fuse board

• Connector details — battery current sensor

Driving assistance

• Parking distance control

• Radio aerials

• Radio and communication systems

• Speed regulator

Earth distribution

• Battery electrical earth

• Engine electrical earth

• Engine front left-hand side member electrical earth

• Front left-hand side member electrical earth

• Front right-hand side member electrical earth

• Steering column support electrical earth

• Rear left electrical earth

• Rear right electrical earth

Electrical distribution

• Battery charge circuit

• Battery current sensor

• Engine fuse and relay board

• Passenger compartment control unit

• Passenger compartment fuse and relay board

• Power fuse board

Engine check

• Diesel filter heater

• Diesel pre and post heating

• Electronic injection engine section

• Electronic injection passenger compartment section

• Engine cooling system

• Starting circuit

• Water in diesel detection

Fuses and Relays

• Fuse and relay diagrams

Harness Layout

• Vehicle wiring harness routing

Networking

• CAN network

On-board instruments

• Diagnostic socket

• Fuel level and fuel pump

• Instrument panel

• Low brake fluid warning light

• Oil pressure indicator

• Vehicle speed signal

Passenger compartment comfort

• Accessories socket

• Additional passenger compartment heating

• Air conditioning compressor

• Air conditioning system

• Automatic air conditioning

• Basic heating

• Cigarette lighter

• Courtesy lighting

• Electric rear-view mirrors

• Front electric windows

• Heated seats

• Pre-equipment radio

• Radio and communication systems

• Rear electric windows

• Storage compartment lighting

Passenger compartment safety

• Airbag and seat belt warning light

Transmission check

• Clutch assistance

Visibility and signalling

• Brake light and high-level lights

• Dipped headlights

• Direction indicators and hazard warning lights

• Electromagnetic horn

• Front and rear washer and wipers

• Front foglights

• Main beam headlights

• Position lights

• Rear foglights

• Rear window de-icing

• Reversing lights

• Windscreen de-icing