How many amps is a starter relay?
The short of it is that it takes 8-10 amps to hold the solenoid in place while starting but the draw can spike to 30 amps while it is engaging.
How can you tell if your starter relay is bad?
The most obvious warning sign that a problem with the starter relay exists is when the vehicle won’t start when you engage the ignition process. As stated above, electronic keys do not have a manual ignition switch. However, when powered, it should send a signal to the starter relay once the key is turned or the starter button is pressed.
Is the starter relay part of the ignition system?
One of the most important – and most forgotten – components of any vehicle’s ignition system is the starter relay. This electrical part is designed to redirect power from the battery to the starter solenoid, which then activates the starter to spin over the engine.
How do you determine the watts of a relay?
An easy way to determine the limit of a relay is to multiply the rated Volts times the rated Amps. This will give you the total watts a relay can switch. Every relay will have two ratings: AC and DC. You should determine the AC watts and the DC watts, and never exceed these ratings.
How many amps can be switched through a relay?
Relays often have two ratings: AC and DC. These rating indicate how much power can be switched through the relays. This does not necessarily tell you what the limits of the relay are. For instance, a 5 Amp relay rated at 125VAC can also switch 2.5 Amps at 250VAC.
What do you need to know about a starter relay?
What is a Starter Relay? A starter relay is a small, electrical device found in the starting circuit of high-current motors. The relay is essentially a remote switch that controls a high-current circuit. In motor vehicles, a starter relay uses the small ignition switch current to close the much heavy-duty starter circuit.
Why is a clicking sound coming from the starter relay?
Clicking sound coming from the starter One of the most important – and most forgotten – components of any vehicle’s ignition system is the starter relay. This electrical part is designed to redirect power from the battery to the starter solenoid, which then activates the starter to spin over the engine.
An easy way to determine the limit of a relay is to multiply the rated Volts times the rated Amps. This will give you the total watts a relay can switch. Every relay will have two ratings: AC and DC. You should determine the AC watts and the DC watts, and never exceed these ratings.
How can I tell if I need to replace a relay?
Unplug the wire at the “S” terminal on the relay. Check the resistance between the terminal and the relay mounting bracket using the multimeter. If there is more than 5 ohms between these two points, clean the mounting bracket. If you still read a high resistance, replace the relay.