MAN TG3 Telematic System Wiring Diagrams – VCM, TBM3, GNSS Antenna, Ethernet Network & Remote Download Socket

This technical wiring manual contains the complete electrical schematics for the vehicle telematic and connectivity systems used in MAN TG3 trucks.

The diagrams include the full control architecture for telematic board modules, Vehicle Connectivity Manager, CAN communication routing, Ethernet network configuration, roof antenna connections, GNSS signal distribution and remote download interface wiring.

All circuits include connector identifiers, system references and grounding architecture required for professional diagnostics, fleet telematics troubleshooting or connectivity system repair.

Telematic Control Modules

• Telematic Boardmodule 3 (TBM3)

• Vehicle Connectivity Manager (VCM)

• CVM control module integration

• Central electrical system supply

• Dedicated telematic fuses (terminal 30 / terminal 15)

These modules form the onboard telematic data processing and communication system.

Ethernet and CAN Communication Architecture

• I-CAN vehicle communication routing

• D-CAN communication interfaces

• Ethernet connection between CVM, VCM and TBM modules

• Ethernet connector interface (Kroschu)

• Digital input routing for telematic signals

The telematic architecture supports multiple configurations depending on installed modules and Ethernet topology.

GNSS, GSM and Roof Antenna Systems

• Combined GPS / GSM roof antenna

• GNSS splitter module

• Radio antenna integration

• Antenna routing through roof connectors

• Signal shielding and grounding references

These antenna circuits provide satellite navigation, mobile communication and data transmission capability.

Remote Download and Diagnostic Interface

• Remote download socket X5080

• CAN interface routing for remote diagnostics

• CAN terminating resistor configuration

• Body interface connectors

This interface allows telematic remote data download and fleet management communication.

Additional Telematic Equipment

• CATARC telematic box

• CAN communication routing to connectivity modules

• Power and ignition signal routing

• Installation harness connectors

These components extend telematic functionality for regional configurations or fleet management systems.

Wiring Harness Interfaces

• Roof cut-off connectors right / left

• Ethernet interface connectors

• Telematic antenna connectors

• Cab wiring carrier interfaces

• Body interface connectors

These harness references allow full diagnostic tracing of telematic electrical circuits.

Diagnostic Use Cases

• telematics module not communicating

• VCM or TBM not detected

• GNSS signal missing

• GSM connectivity faults

• remote download socket not responding

• CAN communication telematics errors

• Ethernet configuration issues

Compatible Vehicles

• TGX

• TGS

• TGM

• TGL

MAN TG3 platform trucks equipped with telematics, connectivity or fleet communication systems.

Technical Highlights

• Complete OEM telematic system wiring diagrams

• Vehicle Connectivity Manager architecture included

• Ethernet communication topology included

• GNSS and GSM antenna routing included

• Remote download diagnostic interface included

• Full harness routing references included

Table of Content

Telematic Control Modules

• TBM3 wiring

• Vehicle Connectivity Manager circuits

• CVM integration

Communication Networks

• CAN routing

• Ethernet network topology

• Digital signal routing

Antenna Systems

• GPS / GSM roof antenna

• GNSS splitter wiring

• Radio antenna routing

Diagnostic Interfaces

• Remote download socket wiring

• CAN termination routing

• Body interface connectors

Electrical Infrastructure

• Central electrical system supply

• Telematic fuse routing

• Ground network references

Wiring Harness Interfaces

• Roof connectors

• Ethernet connectors

• Cab wiring interfaces

• Body installation connectors

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