No headlights new switchswapped relays under hood fuses under

To troubleshoot the headlight system, switch the headlight switch ON and OFF and check if the headlight relay can be felt and heard clicking. This is indicated in the first schematic on the left side of the diagram. The triangle at the bottom left connects to the two 15 amp fuses that were previously checked. It is also important to test the "TBC" fuse in the Instrument Panel (IP) fuse block, which should be "hot at all times" according to the schematic, meaning it should have power on both sides consistently.

The headlight system in a vehicle typically consists of a headlight switch, a relay, and associated fuses that protect the circuit from overloads. In this schematic, the headlight switch is the primary control that activates the headlights. When the switch is turned ON, it sends a signal to the headlight relay, which is responsible for supplying power to the headlights from the battery.

The relay is a crucial component in this circuit, as it allows a low-current signal from the headlight switch to control a higher-current circuit that powers the headlights. The clicking sound associated with the relay indicates that it is functioning correctly, engaging the circuit to provide power to the headlights.

The two 15 amp fuses mentioned are critical for protecting the circuit from excessive current draw. If either fuse is blown, the headlights will not function. It is essential to check these fuses regularly to ensure they are operational.

Furthermore, the "TBC" fuse located in the Instrument Panel (IP) fuse block is designed to maintain power at all times, even when the vehicle is off. This fuse is vital for the proper operation of various electrical components in the vehicle, including the headlight system. Testing this fuse with a multimeter or test light will confirm whether it is providing the necessary power.

In summary, the headlight system's operation relies on a combination of the headlight switch, relay, and fuses. Proper testing and troubleshooting of these components can help diagnose issues effectively, ensuring that the headlights function reliably for safe driving.What I would do is switch the headlight switch ON & OFF and them see if you can "feel & hear" the headlight relay clicking. This is shown in the first schematic, on the left of the diagram. The triangle at the bottom left leads to the two 15 amp fuses you checked earlier. Did you test (with a test light or meter) the "TBC" fuse in the Instrument Panel (IP) fuse block It says "hot at all times" on the schematic, so it should

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