This official wiring diagram provides a complete overview of the Electrical Power Supply System in MAN TG3 TGX/TGS Euro 6d trucks, based on the Q4 2020 release by MAN Truck & Bus SE (Werk München). It maps every critical power distribution point — from battery to fuse block, alternator to control units — including CAN and LIN architecture for the entire electrical backbone.
⚡ Key components included:
- Zentralelektrik (A100.1) – Central fuse and relay box
- Battery system (Battery 1 & 2) with jump-start socket
- Starter motor (M100.4) and Alternator (G102.2)
- RIO Module (A1358.1) and fuse protection (F1515–F1518)
- Battery main fuses: F354.1, F355.1
- Grounding logic (SYS_groundNet) and cabin/frame harness routing
- CAN & LIN routing to CVM, EIO modules, infotainment, and diagnostic interfaces
- Battery cut-off switch (Q105.2), Diode packs, and steering lock (Q101.1)
🛠️ Ideal for:
- Deep diagnostics of electrical faults or no-start conditions
- Retrofits involving RIO, EIO, or CVM control units
- Electrical upgrades (battery, fuse layout, cab extensions)
- Workshop schematic referencing for high-voltage path tracing
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