MAN TG3 Working Light Wiring Diagrams – Roof Lights, Frame Work Lamps, Cargo Lighting & CAN Control

This technical wiring manual contains the complete electrical schematics for the auxiliary working light systems used in MAN TG3 trucks.

The diagrams include the full control architecture for roof-mounted working lights, rear frame lighting units, cargo space illumination, operating switches, CAN-controlled electronic modules, fuse protection routing and electrical supply connections.

All circuits include connector identifiers, system references and grounding architecture required for professional diagnostics, repair or auxiliary lighting troubleshooting.

Working Light System Components

• Roof working light left

• Roof working light right

• Rear frame working lights

• Cargo / body working lights

• Working light operating switches

• Central electrical system supply

• SYS_groundNet grounding references

These components form the electrical architecture responsible for auxiliary vehicle lighting during loading, maintenance or work-site operation.

Control Modules and Electronic Architecture

• RIO control module integration

• CVM lighting control logic

• CAN communication routing for light activation

• Electronic output routing to working lights

These modules manage activation logic and communication with the vehicle electronic system.

Electrical Supply and Protection

• Fuse-protected working light power supply

• Terminal +30 electrical routing

• Electrical distribution through central system

• Ground network routing references

These protected circuits ensure stable power delivery for auxiliary lighting equipment.

Wiring Harness Interfaces

• Roof lighting connectors

• Cab wiring carrier interfaces

• Frame electrical routing connectors

• Body installation harness terminals

These harness references allow full diagnostic tracing of working light electrical circuits.

Diagnostic Use Cases

• working lights not activating

• roof lights not switching on

• rear frame lighting failure

• cargo light electrical faults

• CAN activation errors

• fuse or electrical supply faults

• wiring connector troubleshooting

Compatible Vehicles

• TGX

• TGS

• TGM

• TGL

MAN TG3 platform trucks equipped with auxiliary working light systems.

Technical Highlights

• Complete OEM working light wiring diagrams

• Roof and rear lighting circuits included

• Driver switch control wiring included

• CAN module activation routing included

• Fuse protection architecture shown

• Full harness routing references included

Delivery