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Headlamp Relays and Washer Relays: Vehicle Search Guide

A headlamp relay is an automotive electrical component, not a wearable head torch. Match the relay to the vehicle’s wiring information and diagnose the circuit before replacing parts.

A headlamp relay search usually concerns a vehicle’s electrical system. The relay switches power to a lighting circuit; a headlamp washer relay, where fitted, serves a different circuit. Neither is a wearable head torch. Before ordering a replacement, identify the vehicle’s make, model, year and trim, then consult its wiring diagram and fuse-box information. Similar-looking relays may have different pin layouts or ratings. If a lamp has stopped working, check the full circuit rather than assuming the relay is at fault. For safety-critical electrical work, use the vehicle service manual or a qualified auto electrician. If your intended search was for a rechargeable outdoor head torch, use the rechargeable headlamp guide instead.

Headlamp Relays and Washer Relays: Vehicle Search Guide

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Common questions

Questions before you buy

What does a headlamp relay do?

It switches electrical power to a vehicle lighting circuit under control of the vehicle’s electrical system. The exact circuit and relay location vary by vehicle.

Is a headlamp washer relay the same as a headlight relay?

Not necessarily. A washer relay, when fitted, relates to the washer system, while a headlamp relay controls a lighting circuit. Check the vehicle wiring diagram and fuse-box legend.

How do I know which headlight relay fits my car?

Use the vehicle make, model, year, trim and the original relay part number or wiring diagram. Do not choose solely by appearance because pinout and electrical ratings can differ.

Can I replace a headlamp relay myself?

Only if you can identify the correct component and follow the service information safely. If the fault persists or wiring is damaged, have the circuit checked by a qualified technician.