Access the driver-side lower dash compartment to reach the cabin distribution module, then inspect the under-hood unit near the battery for high-current circuits. Match each slot with its printed label and amperage rating before removing any element.
Cabin panel controls interior lighting, instrument cluster, audio system, and power outlets. Common amperages range from 7.5A for indicator lights to 20A for window motors and door locks. Test each link with a multimeter to confirm continuity.
Engine compartment module manages major circuits such as ignition, alternator, cooling fans, and ABS system. Slot ratings typically range from 30A to 80A. Disconnect the negative battery terminal before working in this area to prevent short circuits or module damage.
Spare elements are usually stored in the same compartment in 10A, 15A, and 20A ratings. Replace any damaged unit with the exact amperage to maintain safe operation and avoid overheating wiring or damaging connected modules.
Lexus UX 250h Fuse Box Layout with Panel Locations and Circuit Details
Open the driver-side lower dash panel to access the interior electrical module, then check the under-hood unit near the battery for high-current circuits. Verify each slot number with the printed label before removing any component.
The cabin panel handles circuits for interior lighting, instrument cluster, infotainment, and power outlets. Low-amperage slots are typically rated 7.5A to 15A, while mid-range circuits such as window motors and door locks use 20A elements.
The engine compartment unit supports ignition, alternator, cooling fans, ABS, and traction control modules. High-load slots are usually rated between 30A and 80A. Disconnect the negative battery terminal before servicing to prevent short circuits.
Spare elements are stored inside the same compartments in 10A, 15A, and 20A ratings. Use these spares to replace damaged links without needing additional parts. Always confirm continuity with a multimeter after replacement.
Panel layout and slot assignments
- Top row: interior lighting and dashboard indicators
- Center slots: audio system, USB ports, and power outlets
- Lower slots: power windows, door locks, and HVAC controls
- Engine compartment: ignition, alternator, cooling system, ABS, and main relays
Maintenance and safety tips
Follow the layout chart carefully to locate circuits quickly and identify amperages correctly. Replacing a link with an incorrect rating can cause overheating or damage connected modules.
Inspect each component individually when troubleshooting a system failure. Proper identification of panel slots reduces the risk of miswiring and ensures safe operation of both interior and engine systems.
Interior panel slot numbers with circuit assignments and amperage ratings
Access the driver-side lower dash to reach the cabin electrical module and identify each slot by its printed number. Confirm the assigned circuit and amperage before replacing any component to avoid overloading wiring or connected systems.
Slot organization divides circuits by function. Top-row elements control interior lighting and dashboard indicators with ratings from 7.5A to 10A. Central slots handle audio, USB ports, and power outlets, typically using 10A–15A links. Lower slots manage power windows, door locks, and HVAC controls at 20A. Testing each connection with a multimeter ensures proper continuity.
Spare elements and safety
- Spare links stored in the module include 10A, 15A, and 20A ratings
- Replace damaged elements with exact amperage to prevent overheating
- Keep a layout chart accessible for quick identification of slot numbers and circuits
- Disconnect the negative battery terminal before servicing high-load circuits