What does it mean when my relay clicks?
Clicking noise in your car’s fuse box is caused by a relay that is turning on and off rapidly. The clicking noise at the relay indicates that the relay is bad, or that the wires to the relay and/or connector is bad. A relay is an electronically activated switch.
What does it mean when a relay does not click?
If you hear or feel the relay click, the relay and its wiring aren’t the problem. But if it’s not clicking, the problem could be in the relay itself or in the wiring.
What are some examples of problems with relays?
For example, on a horn, the problem is often in the spring-loaded plunger behind the steering wheel that touches the ring contact that grounds terminal 85. On the high current (load side), test that 12V is present on socket terminal 30, and that there is continuity between 87 and the device.
Can you feel the contacts closing on a relay?
You also can feel the contacts closing if you lay your hands on the relay. So, for example, if your horn doesn’t work, the first thing to do is turn it on (e.g., hit the horn button), and listen to and feel the relay.
Why does my Hagerty relay not show continuity?
If the relay does click and 30 and 87 do show continuity, there is still the possibility that the internal contacts are corroded and a voltage drop across them is preventing full current from flowing. Take that thought and park it for a moment. If the relay itself tested as good, then the relay wiring must be tested next.
If you hear or feel the relay click, the relay and its wiring aren’t the problem. But if it’s not clicking, the problem could be in the relay itself or in the wiring.
For example, on a horn, the problem is often in the spring-loaded plunger behind the steering wheel that touches the ring contact that grounds terminal 85. On the high current (load side), test that 12V is present on socket terminal 30, and that there is continuity between 87 and the device.
You also can feel the contacts closing if you lay your hands on the relay. So, for example, if your horn doesn’t work, the first thing to do is turn it on (e.g., hit the horn button), and listen to and feel the relay.
What to do if your fuse box is clicking?
If that relay also clicks constantly, you need to run more tests. If that relay works fine, then the original relay that was in that spot is faulty. Simply replace that relay with a new one. Identify the terminals on the relay. Look at the terminal labels on the relay.