This includes the com terminal the normally open terminal and if the relay is a double throw relay the normally closed terminal. Relays are used to bypass signal wire and directly supply current from battery thus your car wiring remains safe from heating up and burning due to the load of heavy components.
How A 5 Pin Relay Works Youtube
How to test a 4 pin relay. United states restricted mode. Homie hektor 154131 views. Off history help about. Httpsamznto2kplxwf testing a relay is not as complicated as people think. Denso parts are often used in japanese assembled cars including cars manufactured by renowned brands like toyota honda mitsubishi suzuki mazda daihatsu and several others. How to use a multimeter for beginners how to measure voltage resistance continuity and amps.
Relays are the integral component of any car wiring. Confirm the integrity of the relay load connections. Note the resistance values. How to test a relay and the relay circuit duration. How to test a relay and the relay circuit duration. The relay will have 4 pins.
This video shows you how an automotive relay works and how you can test it using an digital multimeter. Find the relay characteristics. 2 will connect to the control circuit and 2 will connect. Relay test 2 listen for a click supply 12 volts power to 86 ground to pin 85 you will hear 87 to 87a closing click. Place the multimeter one probe on nc terminal and other on com terminal of relay. Test the relay contacts with an ohmmeter besides the coil terminals you then can check to see if the the other terminals are good as well.
This is the easiest way to do it out of the car and the only way it should be done. Take a multimeter and put it on the ohmmeter settings. The relay should not be tested while it is connected to the circuit. Relay test 4 with test light or light bulb. Homie hektor 154488 views. Normally closed terminal nc contact.
No car wiring can be complete without these. Relay test 3 supply power to 86 and gnd to 85 this circuit energized now check for resistance between pins 30 and 87 set meter to 2000 ohms look for little or 0 resistance. Denso relay 4 pin wiring diagram. You will need a 12v power supply or car battery and multimeter voltmeter. How to test relay any relay voltmeter. If you get the resistance value of 0ω congratz this terminal is working correctly.
Find and remove the relay.
Gallery of How To Test A 4 Pin Relay
