Access the main junction under the driver’s side dashboard. Release the two snap clips and lift the protective lid carefully. Inside, each slot is labeled with a number and amperage rating for circuits controlling headlights, indicators, ignition system, climate controls, and auxiliary outlets.
Verify amperage before replacing any component. Standard circuits use 10A, 15A, or 20A inserts, while high-load connections such as rear window defroster or ABS pump require 30A. Installing a component with an incorrect rating can trip circuits or damage wiring harnesses.
Inspect each terminal for corrosion or discoloration. Loose or oxidized connections reduce current flow and may cause intermittent failures in lighting, audio, or engine management systems. Tighten clips gently without forcing them to maintain proper contact and avoid plastic deformation.
Label the interior schematic if markings have faded. Use a fine-point permanent marker or small sticker to match each circuit number to its position. Clear markings ensure accurate replacements and prevent inserting a component in the wrong slot during future maintenance.
Electrical Panel Layout for Wira 16
Access the driver’s side under-dash panel by pressing the two retaining clips and lifting the protective lid. The slots inside correspond to circuits for headlights, indicators, horn, ignition, and climate control systems. Each slot is numbered and marked with its amperage rating for quick identification.
Verify each slot before inserting a replacement component. Standard circuits typically use 10A, 15A, or 20A inserts, while high-load connections such as rear defroster and ABS require 30A. Installing the wrong rating can cause repeated circuit trips or damage to the wiring harness.
Inspecting Terminals and Connections
Check for corrosion or discoloration at each terminal. Oxidized or loose connections reduce current flow, leading to intermittent faults in lighting, audio, or engine management. Clean terminals with a small brush and contact cleaner, and ensure clips are seated firmly without excessive force.
Labeling and Maintaining the Layout
Restore faded markings on the inner panel using a fine-point permanent marker or durable sticker. Clear labels help identify each circuit during future inspections or replacements, preventing accidental insertion of a component in the wrong slot and maintaining reliable operation of all electrical systems.
Locating the Main Junction and Removing the Lid
Reach under the driver’s side dashboard near the pedals. The primary electrical panel is mounted just above the footwell and secured with two snap clips. Press both tabs simultaneously and lift the lid slowly to avoid cracking the plastic housing.
Identify the slot layout printed on the inside of the lid. Circuits include:
- Headlights and taillights
- Indicators and horn
- Ignition system connections
- Climate control and blower motors
- Auxiliary outlets and audio system
Check that all printed numbers and amperage ratings are visible before proceeding with replacements.
Inspect the panel for damage or corrosion. Heat marks, cracks, or oxidized terminals can reduce current flow and cause intermittent failures. Clean contacts with a small brush and contact cleaner, then reseat the lid firmly ensuring all clips snap into place without forcing.