MAN TG3 Electrically Assisted Steering Wiring Diagram – TGX/TGS Euro 6d (Q4 2020)

This official OEM wiring diagram details the Electrically Assisted Steering (EAS) system for MAN TG3 TGX/TGS Euro 6d trucks. Issued in Q4 2020 by MAN Truck & Bus SE (Werk München), the schematic illustrates power delivery, CAN communication, and sensor inputs for active steering functionality.

🔧 Included components:

• AP780 (A1397.1) – EAS Steering Control Unit
• F1554.1 (F107) – Fuse for EAS system (Battery Box)
• Power supply via Terminal 30, 31, and 15
• CAN interface: O1-CAN bus
• Connectors: X6490, X5490 – frame harness left/right, battery box terminals
• Grounding via SYS_groundNet, electrical feed via SYS_electricalPowerSupply

📌 Regulatory Note:
The diagram includes a compliance warning: any changes to the EAS power feed fall under ECE-R79 Annex 6 homologation regulations, critical for vehicle safety certification.

Ideal for:

• Diagnosing active steering power loss or CAN dropout
• Troubleshooting fuse or ignition line faults
• Supporting retrofits or integration into modified chassis
• Workshop service manuals and diagnostic tool cross-reference

---

Delivery:

The download link will be promptly delivered to your email upon completing the checkout process.