Volvo FM/FH Truck Wiring Diagram Service Manual Group 37 (Release 01) PDF

Volvo FM/FH Wiring Diagram Service Manual – Group 37 (Release 01)

If you’re diagnosing no-start, power distribution faults, CAN/J1939 issues, lighting problems, or ECU-related electrical errors, this manual gives you the wiring diagrams and reference indexes needed to trace circuits accurately.

🗂️ Table of Contents / Index (Neatly Listed)

• Example of wiring diagram (how to read the diagrams)

• Component wiring diagram index

• Component wiring diagrams

• Illustrations index

• Illustrations

• Fuses

• Relays

• Wiring harness illustration index

• Ground connections + list of ground connections

• List of connectors

• List of components

• Abbreviations + cable colour code

🧩 Main Systems Covered (Component Diagram Index Highlights)

⚡ Power, Starting & Distribution

• Power supply / starting system

• Main switch

• Power distribution

🧠 ECUs, Instruments & Telematics

• Vehicle ECU

• Instrument cluster

• Tachograph (dash / shelf)

• Dynafleet

• FMS Gateway

🛠 Engine Interfaces & Engine Variants

• Engine interface

• Engine wiring diagrams (multiple engine variants covered)

🧯 Brakes, ABS/EBS & Suspension

• ABS (basic)

• EBS ECU & modulators

• Air suspension

• Air dryer

💡 Lighting & Trailer Circuits

• Headlights control modules

• Rear lights / trailer lighting variants

• Trailer connections (rigid/tractor variants)

🧊 HVAC & Cab Equipment

• Climate unit

• Air & water heaters

• Heated/adjustable seat

• Mirrors / windows systems

🔌 Body Builder & Extra Fuse Blocks

• Extra fuse blocks

• Body builder circuit variants

🧭 Vehicle Networks

• J1708/J1587

• J1939

• J1939–7 / OBD

📌 File Details

Stop guessing with electrical faults—use the proper Volvo FM/FH wiring diagrams to trace power, grounds, connectors, and modules accurately. Buy now and download instantly to diagnose faster and fix it right the first time.