Check the cabin power module to troubleshoot interior circuits including dashboard lights, climate controls, and accessory outlets. Each terminal is labeled with a number and a color-coded current rating for accurate identification.
Inspect the engine compartment relay assembly for systems such as starter motors, cooling fans, and ignition circuits. Relays are grouped by function, allowing quick tracing of connections and identification of potential issues.
Use the printed map under the protective cover to match terminal numbers with their respective circuits. Proper mapping prevents misplacement and ensures correct replacement of protective components.
Document terminal positions and amperage ratings before disconnecting wires. Maintaining a reference simplifies reinstallation and ensures that each circuit receives the correct current, avoiding damage to other components.
Roadster Electrical Panel Layout
Inspect the interior power module for circuits controlling dashboard instrumentation, cabin lighting, and accessory outlets. Terminals are numbered and color-coded to indicate amperage ratings, which simplifies identification and ensures correct replacements during maintenance.
Group components by function when checking connections. Common groupings include lighting, climate systems, and audio controls. This organization allows precise troubleshooting without affecting unrelated systems, reducing the risk of electrical faults.
Engine Compartment Relay Assembly
Examine the main relay cluster for high-current circuits such as starter motors, cooling fans, and ignition components. Relays are arranged according to function, which helps quickly locate the circuit responsible for a malfunction and allows safe testing or replacement.
Maintenance and Verification
Document all terminal positions and amperage ratings before disconnecting any wiring. Use a multimeter to verify continuity and voltage across each circuit, ensuring proper operation and preventing repeated failures after service.
Locating Interior Circuit Terminals and Ratings
Begin with the cabin power module to identify circuits controlling lighting, infotainment, and climate controls. Each connection point is labeled with a numeric code and color designation corresponding to its amperage capacity.
Check the instrument cluster terminals for circuits supplying dashboard indicators and warning lights. Voltage measurements should match the specified ratings to ensure safe operation and prevent blown protective elements.
Document terminal positions before servicing to avoid misplacement. Keeping a written record or photograph helps restore connections accurately and maintains correct current flow across all circuits.
Inspect wiring harnesses leading to accessory outlets for consistent amperage ratings. Identify high-load circuits separately from low-load controls to prevent accidental overload during troubleshooting or modifications.
Use the printed label on the module cover as a reference for identifying terminals. This labeling includes numeric identifiers, color codes, and maximum current specifications that streamline repairs and replacements.
Verify each connection with a multimeter before reassembly. Measure continuity and voltage at each terminal to confirm proper contact and correct distribution of current throughout interior systems, reducing the risk of electrical faults.