
Check the power module location under the dashboard on the driver’s side for quick access to circuit protection components. Panels in this area house relays controlling interior lighting, climate controls, and accessory sockets.
For engine compartment inspection, open the hood and locate the main distribution center near the battery. This panel contains relays for ignition, cooling fans, and headlamp circuits. Ensure the vehicle is off before handling any connectors to avoid short circuits.
Label each relay before removal to prevent confusion during reinstallation. Use a small flashlight to identify markings that indicate amperage and circuit assignment, which is crucial for troubleshooting electrical issues accurately.

Document the panel layout with a photo before attempting replacements or testing. This provides a visual reference to compare with replacement modules, reducing the risk of incorrect connections and blown circuits.
Regular inspection of both cabin and engine power modules can reveal signs of overheating, corrosion, or loose terminals. Addressing these early prevents intermittent electrical failures that may affect vehicle performance and safety.
Electrical Panel Reference for 2012 Minivan

Locate the interior power distribution center beneath the dashboard on the driver’s side to access circuits controlling lighting, climate, and accessory sockets. Verify each connector and relay before testing to prevent accidental shorts or blown components.
Inspect the main engine compartment panel near the battery for relays handling ignition, cooling fans, and headlamp circuits. Label each relay and document its position with a photo to ensure correct replacement and maintain reliable electrical performance.
Locating Cabin and Engine Compartment Power Modules

Access the interior power module under the dashboard on the driver side to manage circuits for lighting, infotainment, and auxiliary components. Remove the cover carefully and identify each relay slot using the labeled markings to avoid confusion during testing or replacement.
Check the main engine compartment module near the battery for high-current relays controlling the ignition system, cooling fans, and main headlamp circuits. Confirm all connections are secure and inspect for corrosion or wear before performing any diagnostic checks.
Document each module and relay location with a quick photo or note before disconnecting components. This prevents wiring errors during reassembly and ensures all electrical systems operate reliably after maintenance or replacements.