MAN TG3 Windscreen Wiper Wiring Diagrams – Wiper Motor, Washer Pump, Rain Sensor & CVM CAN Control

This technical wiring manual contains the complete electrical schematics for the windscreen wiper and washer system used in MAN TG3 trucks.

The diagrams include the full control architecture for the windscreen wiper motor, washer pump, rain/light sensor, steering column stalk switch, relay control circuits, CAN and LIN communication routing and electrical supply connections.

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

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Windscreen Wiper System Components

• Windscreen wiper motor

• Windscreen washer pump

• Rain/light sensor

• Relay wiper stage

• Steering column stalk switch

• Central electrical system supply

• CVM control module

These components form the electrical architecture responsible for automatic and manual windscreen cleaning functions.

10_SYS SYS_windscreenWiper 1

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Driver Control and Sensor Integration

• Steering column stalk switch for wiper control

• Interval duration control signals

• Automatic activation via rain sensor

• End-position feedback from wiper motor

These signals provide both automatic and manual control of wiper operation.

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CAN / LIN Communication Architecture

• I-CAN communication through CVM module

• LIN bus connection to rain/light sensor

• Signal routing between control module and wiper system

The wiper system communicates with vehicle electronics for automatic operation and monitoring.

10_SYS SYS_windscreenWiper 1

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Electrical Supply and Ground Routing

• Central electrical system supply routing

• Fuse-protected electrical feed

• SYS_groundNet grounding references

• Cab-frame wiring routing

These protected circuits ensure stable power delivery for wiper motor and washer system.

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Wiring Harness Interfaces

• Steering column connectors

• Cab cut-off connectors left/right

• Cab-frame harness connector

• System carrier wiring interfaces

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

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Diagnostic Use Cases

• wiper motor not running

• washer pump not activating

• rain sensor automatic wiper failure

• intermittent wiper malfunction

• stalk switch not detected

• CAN/LIN communication faults

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Compatible Vehicles

• TGX

• TGS

• TGM

• TGL

MAN TG3 platform trucks equipped with automatic rain-sensor windscreen wiper system.

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Technical Highlights

• Complete OEM windscreen wiper wiring diagrams

• Wiper motor and washer pump circuits included

• Rain/light sensor integration shown

• CVM CAN communication routing included

• LIN sensor communication included

• Full harness routing references included

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Table of Content

Windscreen Wiper System

• Wiper motor wiring

• Washer pump circuits

• Electrical supply routing

Driver Controls

• Steering column stalk switch

• Interval control signals

• Automatic activation routing

Sensor Integration

• Rain/light sensor wiring

• LIN communication routing

• Feedback signal circuits

Electronic Communication

• CVM CAN routing

• LIN bus sensor communication

Electrical Infrastructure

• Central electrical system supply

• Fuse protection routing

• Ground network references

Wiring Harness Interfaces

• Steering column connectors

• Cab cut-off connectors

• Frame harness routing

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