Hyundai Genesis Coupe Head Lamps Wiring Diagram SD921-1 - BCM, SJB, HID Circuit
Wiring diagram of the headlamp circuit showing the multifunction switch, junction box, BCM and instrument cluster connections.
This document is page SD921-1, 'Head Lamps (1)', a factory-style wiring diagram covering the head lamp control circuit. It shows the Smart Junction Box (with internal IPS Control Module and MODULE2 7.5A fuse, powered 'HOT IN ON OR START'), the BCM, the Multi-Function Switch (containing the dimmer/passing switch with PASS/LOW/HIGH positions and the light switch with HEAD/TAIL/OFF positions), the Instrument Cluster (with high beam indicator, LED drive IC, MICOM, and B-CAN transceiver), the Auto Head Lamp Leveling Device Unit, and two joint connectors. Connector identifiers include M02-A/B/C, M48-L, I/P-C, I/P-D, M11, MF11, F06, JM01, JM04, and ground GM02. Wire gauges/colors are labeled (0.3L, 0.3R, 0.22Br, 0.22W, 0.3Gr, 0.3P, 0.3B, 1.25B). Cross-references point to Power Distribution (SD110-8/SD110-9), Passenger Compartment Fuse Details (SD120-4), Ground Distribution (SD130-2), and Data Link Details (SD200-3), along with photo references (PHOTO 49, 51, 52, 54, 56, 63, 95, 112, 113). A reader can trace headlamp low/high switch signals from the multi-function switch through the BCM and SJB, B-CAN communication to the instrument cluster, an HID-labeled branch, and the low-beam 'on' signal feeding the auto leveling unit.
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Frequently asked questions
- What fuse powers the head lamp circuit in this diagram?
- The Smart Junction Box shows MODULE2, a 7.5A fuse, on a circuit that is HOT IN ON OR START, with further fuse details referenced at SD120-4 (Passenger Compartment Fuse Details).
- Which connector serves the multi-function switch head lamp circuits?
- Connector M48-L, using pins 10, 9, and 4 for the dimmer/passing and light switch signals and pin 2 for the ground side (0.3B wire to joint connector JM01, then 1.25B to ground GM02).
- What components are inside the instrument cluster in this circuit?
- The instrument cluster (PHOTO 51, connector M11) contains the HIGH BEAM indicator, an LED DRIVE IC, MICOM, and a B-CAN TRANSCEIVER, with B-CAN Low on pin 35 (0.3L) and High on pin 34 (0.3R).
- Where does the auto head lamp leveling device unit get its signal?
- It receives a 'Head Lamp Low On Signal' on pin 2 of connector F06, via a 0.3R wire routed through pin 21 of connector MF11 on an HID-labeled branch.
- What other diagram pages does SD921-1 reference?
- It references Power Distribution (SD110-8, SD110-9), Passenger Compartment Fuse Details (SD120-4), Ground Distribution (SD130-2), and Data Link Details (SD200-3).
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