This official wiring diagram illustrates the full layout of the Instrument Cluster System (AP117) in MAN TG3 TGX/TGS Euro 6d trucks, as released by MAN Truck & Bus SE (Werk München), Q4 2020 edition.
📊 The diagram includes:
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AP117 (A407.1) Combined Instrument Unit
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CAN/I-CAN & D-CAN communication with RIO, CVM, and other ECUs
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Display connections for vehicle speed, coolant temperature, trip distance, black ice warning, ambient temperature, air filter pressure, and truck menu functions
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Integration with:
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CVM (AP025)
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RIO module (AP020)
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Wrap spring (Wickelfeder – AV002.1)
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Multifunction stalk switch (S108.1)
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Ambient air & coolant level sensors
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Audio outputs for warning signals and menu navigation
📎 Connector references include: X6411, X6412, X6406, X6440, X6301, and power feed from A100.1 (Zentralelektrik)
Perfect for:
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Diagnosing instrument faults or dead gauges
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Audio/display signal tracing
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CAN bus fault isolation and calibration support
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Cluster upgrades or dashboard retrofits






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