Unlocking Automotive Secrets The Comprehensive Guide to Car Relay Testing

First, a good test will require a voltage supply that matches the relay's coil voltage (for example, 12 volts for an automotive relay). ... has a diagram of a ... To test the relay, when 85 & 86 completes a 12volt circuit, you should hear an audible click or 'feel the click'. In your new video- you can actually take the ... Now to test the relay. Connect a wire from the negative battey cable to pin 86. Then connect a wire from the positive battery cable tto pin 85. The first step is to test continuity between terminals 30 and 87a without hooking the relay up to power. You don't need to do anything in the car or power the ... Apply 12 volts to the small pins, if it clicks the control side is ok. With the relay on (12 volts applied), check continuity across the large pins. If it's more than that, the starter relay is faulty and needs to be replaced. You can also check for resistance by placing the red probe of your ... 2) Start par Test the relay resistance to check the continuity of the control circuit. Set the multimeter to 2K ohm. The value obtained must be between 0 and a ... Take the other lead of wire and connect one end to the battery positive terminal. Connect the opposite end of the wire to pin 86 on the relay. When you touch ... Use a 9 volt battery to quickly check the operation of a relay! This little mechanic life hack help to quick confirm the primary side of the ... Testing the voltage drop across the switch contacts. You shouldn't drop my then 0.1 volts across the relay. All your voltage should drop across ...