Understanding the Problem
The horn relay is an electrical switch that activates the horn when you press the steering wheel button. When you hear clicking but no horn sound, it means the relay is receiving the signal to activate the horn but is failing to complete the circuit and send power to the horn.
Troubleshooting Steps
1. Check the Fuse:
- The horn fuse is usually located in the fuse box under the hood or in the passenger compartment (refer to your owner's manual).
- Inspect the fuse for any signs of damage or melting.
- Replace the fuse with a new one of the same amperage if necessary.
2. Inspect the Horn Wiring:
- Locate the horn wires (usually two wires) connected to the horn itself.
- Check for any loose connections, broken wires, or signs of corrosion.
- If necessary, reconnect loose connections, repair broken wires, and clean any corrosion.
3. Test the Horn Relay:
- Locate the Relay: The horn relay is typically a small black box with multiple terminals. You can usually find it under the glovebox or in the fuse box. Consult your owner's manual for the exact location.
- Visual Inspection: Look for signs of damage, overheating, or corrosion.
- Simple Test: If you have a multimeter, you can test the relay's continuity (see your owner's manual for the specific terminals to test). If you don't have a multimeter, try tapping on the relay gently while pressing the horn button. If the horn sounds briefly, this suggests a faulty relay.
Repairing the Horn Relay
* Replacement: If the relay appears damaged or testing suggests it's faulty, you'll need to replace it.
* Find the Correct Relay: Locate the correct horn relay for your 1998 Mazda Protege. You can check online retailers like Amazon or local auto parts stores.
* Replacement Process:
- Disconnect the negative battery terminal for safety.
- Locate the old relay and carefully unplug its connectors.
- Plug in the new relay, ensuring it's correctly oriented (consult the relay's diagram or your owner's manual if needed).
- Reconnect the battery terminal.
Important Notes:
* Safety: Disconnect the battery terminal before working on any electrical components.
* Owner's Manual: Consult your 1998 Mazda Protege owner's manual for specific locations and troubleshooting instructions for your model.
* Professional Help: If you're not comfortable working on electrical systems, it's best to take your car to a qualified mechanic.
Let me know if you have any further questions, and I'll be happy to help!
