
Locate the driver-side under-dash panel to check low-current modules controlling interior lighting, infotainment systems, and power outlets. Slots are marked with amperage ratings from 5 A to 30 A for precise identification.
Inspect the engine compartment panel near the battery to monitor high-current modules for the starter, alternator, and cooling fans. Components rated 40 A to 60 A must be securely seated to prevent intermittent power loss.
Use the printed chart on each panel cover to match slot locations with their respective functions. This reduces the risk of replacing the wrong component and allows rapid troubleshooting of electrical faults.
Verify continuity and amperage with a multimeter before replacing modules. Confirming proper function prevents overheating, protects wiring, and ensures reliable operation of connected systems.
Keep spare modules with correct amperage ratings on hand during maintenance. Quick access to compatible components minimizes downtime and avoids damage from using mismatched replacements.
Vehicle Panel Layout

Check the driver-side under-dash panel for low-current modules that control interior lights, infotainment systems, and auxiliary outlets. Each slot is labeled with amperage ratings ranging from 5 A to 30 A, making it easier to identify components requiring inspection or replacement.
Inspect the engine compartment panel for high-current modules connected to the starter, alternator, and cooling fans. Modules are typically rated between 40 A and 60 A and must be seated securely to avoid intermittent power interruptions during operation.
Follow the printed layout chart on each cover when servicing or replacing components.
- Match each slot to its function and amperage rating
- Use a multimeter to verify continuity before installing replacements
- Ensure all modules are fully seated to maintain stable connections
This approach minimizes errors and maintains reliable system operation.
Locating Interior and Engine Panel Modules

Access the driver-side under-dash panel to inspect low-current modules responsible for interior lights, infotainment, and auxiliary outlets. Each slot is marked with amperage ratings from 5 A to 30 A, making component identification straightforward.
Use a flashlight to examine connections inside the panel. Loose terminals can cause intermittent failures, and inspecting seating prevents unnecessary replacements or electrical faults.
Engine Compartment Modules

Locate the main panel near the battery to monitor high-current modules linked to the starter, alternator, and cooling fans. Slots typically range from 40 A to 60 A, and secure seating is critical to avoid sudden power loss during engine operation.
Check for corrosion or dirt on terminals that can increase resistance and trigger overheating. Cleaning contacts with a non-conductive brush improves reliability and reduces voltage drops across modules.
Verification and Maintenance

Use the printed chart on each panel cover to cross-reference functions and amperage ratings before replacing any component. Testing continuity with a multimeter ensures correct operation and prevents damage from mismatched replacements.
Keep spare modules with correct amperage ratings available. This allows rapid replacement during maintenance and minimizes downtime caused by electrical failures, while protecting the vehicle’s wiring harness from overloads.