MAN TG3 Engine Supply Wiring Diagrams – TGX/TGS Euro 6d (Q4 2020)

These OEM schematic set outlines the full Engine Supply Wiring System for MAN TG3 TGX/TGS Euro 6d trucks, sourced directly from MAN Truck & Bus SE (Werk München) and dated Q4 2020. These diagrams map out power, fuse protection, ECU integration, and CAN/OBD communication for all engine supply components.

🔧 Key system components include:

• Air flow meter (B323.1 – B470)
• Injector ECU fuse lines (F1186.1, F1188.1)
• Mass air pressure valve (Y502.1 – Y188)
• Wastegate cutoff valve (YP288)
• ECM modules (PFB Power & ATO – A1356.1 / A1357.1)
• CAN-M, OBD-CAN, and M-CAN line integration
• Central Electric Unit (A100.1) distribution to engine bay
• Plugs and break points: X2799, X6302, X6408, X6616, X6891
• Compatibility with D08 SCR-only, EDC7 engine platforms

🛠️ Ideal for:

• Diagnosing injector power loss or fuse trips
• Wastegate or turbo actuator troubleshooting
• CAN/OBD diagnostics from ECU to harness
• Retrofit planning or engine swap wiring adaptation
• Workshops handling emissions wiring and SCR systems

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