
Check the main power distribution panel under the hood for proper slot assignments before performing any repairs. Each connector is labeled with its amperage rating, ensuring accurate identification of circuits powering headlights, ignition, and fuel systems.
Inspect the secondary panel inside the cabin to confirm all circuits are correctly aligned. Misplaced terminals can lead to blown connections or intermittent failures in dashboard indicators, climate control, and audio systems.
Use the printed slot reference card included with the vehicle to match each circuit with its corresponding relay or terminal. Slots controlling auxiliary components such as windshield wipers, power mirrors, and central locking have distinct amperage ratings, which should never be exceeded.
Perform a voltage check across critical terminals before installing new modules. Engine control circuits and transmission actuators require precise current delivery, and incorrect placement can trigger error codes or disable key vehicle functions.
Keep a detailed log of any changes or replacements within the panels. Documenting slot usage, amperage ratings, and relay assignments helps maintain consistent electrical performance and simplifies troubleshooting in case of future issues.
Electrical Panel Reference and Slot Overview

Verify the main under-hood panel to identify correct slot assignments before performing any maintenance. Each terminal is marked with its amperage rating, which controls circuits such as headlights, ignition, and fuel pumps.
Check the interior panel for proper alignment of connectors serving dashboard instruments, climate control, and infotainment systems. Misplaced terminals can cause intermittent failures or trigger warning indicators unexpectedly.
Use the included slot reference guide to match each circuit with its relay or terminal. Auxiliary components like power mirrors, windshield wipers, and central locking are clearly labeled with their current limits, preventing overloads and ensuring reliable operation.
Engine Compartment Power Module Slot Identification

Inspect the main engine compartment panel to locate each terminal slot controlling critical systems such as fuel injection, ignition coils, and cooling fans. Accurate identification prevents electrical faults and avoids damage to sensitive components.
Label each relay position clearly before disconnecting any wires. Components powering headlights, fog lights, and auxiliary lamps are grouped with their respective current ratings for easy recognition.
Check the layout for high-amperage slots that supply the starter motor, alternator, and main battery circuits. These terminals are often color-coded and spaced apart to reduce the risk of short circuits during maintenance.
Refer to the printed slot guide attached inside the panel cover to match each connector to its specific function. Windshield wipers, horn, and power steering circuits are mapped with their load limits to ensure proper protection.
Verify grounding points near each terminal as poor ground connections can cause intermittent operation of electronic modules. Bolts securing the panel and harnesses should be torqued to factory specifications.
Use a test light or multimeter to confirm voltage at each slot before installing replacement modules. This step avoids misidentification and protects sensitive electronics from overcurrent conditions.
Document any modifications or aftermarket additions that tap into the engine compartment panel. Inline terminals for auxiliary lighting or upgraded audio systems should not exceed the current ratings listed to prevent overheating or electrical fires.