
Access the driver-side interior module to inspect all protective cartridges. Label each slot with its amperage and connected circuits to simplify replacements and prevent misidentification.
Check the engine compartment power distribution module near the battery for high-current circuits controlling the starter, radiator fan, and headlights. Ensure all terminals are secure before testing any component.
Use a multimeter to test continuity in auxiliary systems such as power outlets, infotainment, and climate control modules. Test each position individually to locate faults without affecting other circuits.
Keep a set of replacement cartridges with matching amperage ratings in a safe compartment inside the cabin. Install only identical specifications to prevent overheating or intermittent power failures.
Inspect terminals for discoloration or heat marks before reinserting cartridges. Clean contacts with a suitable brush to ensure stable connections and reliable operation of all circuits.
Electrical Panel Layout with Slot Functions and Ratings

Access the main interior power module under the dashboard on the driver side. Label each slot according to its amperage and the systems it controls, including lighting circuits, climate control, and infotainment connections. Verify markings before replacing any cartridge to avoid short circuits or overloading sensitive components.
Inspect the under-hood distribution module near the battery for high-current circuits. Slots include:
- Starter motor relay – 50A
- Cooling fan circuits – 30A each
- Headlamp high beams – 15A
- ABS and traction control – 25A
For troubleshooting, test each slot individually with a multimeter. Check continuity and voltage levels to identify any malfunctioning circuits. Keep replacements with matching amperage readily available, and never mix ratings to maintain system integrity and prevent electrical hazards.
Locating Interior and Engine Compartment Modules

Access the cabin control panel by removing the cover beneath the steering wheel. Each slot is marked for systems such as lighting circuits, power seats, and infotainment relays. Ensure all connectors are seated firmly before testing any component.
Under the hood, the main power distribution module sits adjacent to the battery. Slots include high-amperage circuits for the starter, cooling fans, and ABS system. Label each connector to maintain proper orientation during maintenance.
For troubleshooting, inspect both modules visually for burned or corroded contacts. Use a multimeter to verify voltage at each slot, particularly those controlling engine sensors and electronic throttle systems. Replacements should match amperage exactly to avoid system faults.
Interior and engine modules often share ground connections. Check grounding points near the firewall and under the dashboard for secure attachment. Tighten any loose bolts to prevent intermittent electrical issues and ensure reliable operation of all onboard systems.