@novainfra7: Car relay troubleshooting quick‑reference guide 🔹 Car won’t start: Check the starter relay and main relay first 🔹 Fuel pump dead: Inspect the fuel pump relay and fuel injector relay 🔹 Radiator fan won’t turn on: Test the cooling‑fan and low‑speed fan relays 🔹 A/C blows warm air: Look at the A/C compressor relay and blower‑motor relay 💡 Relays act like remote power switches; swapping a matching spare relay is a fast way to rule out a bad unit #CarRelayGuide