Find and remove the relay. No car wiring can be complete without these.
Universal 12v Relay Tester Electronic Testing Tool For Car Auto Battery Checker 4 Pin 5 Pin Diagnostic Tool
How to test a 4 pin relay. Homie hektor 154488 views. How to test relay any relay voltmeter. How to test a relay and the relay circuit duration. Httpsamznto2kplxwf testing a relay is not as complicated as people think. Place the multimeter one probe on nc terminal and other on com terminal of relay. Take a multimeter and put it on the ohmmeter settings.
If you get the resistance value of 0ω congratz this terminal is working correctly. How to test a relay and the relay circuit duration. 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. 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. Denso relay 4 pin wiring diagram. 2 will connect to the control circuit and 2 will connect.
United states restricted mode. 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. 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. Homie hektor 154131 views. Off history help about. You will need a 12v power supply or car battery and multimeter voltmeter.
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. Normally closed terminal nc contact. The relay will have 4 pins. This is the easiest way to do it out of the car and the only way it should be done.
Note the resistance values. Relay test 4 with test light or light bulb. 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. Find the relay characteristics. This video shows you how an automotive relay works and how you can test it using an digital multimeter. The relay should not be tested while it is connected to the circuit.
This includes the com terminal the normally open terminal and if the relay is a double throw relay the normally closed terminal.
Gallery of How To Test A 4 Pin Relay
