how to test a 5 pin relay with a multimeter

A high reading or no reading means that is something wrong with the meter. PGM-FI Main Relay Pin Out. If there isn’t, check to see if … The step by step guide to test the NO terminal is given below. Pin 11 and 12 are "normally closed", current will flow between them. I've been diagnosing a problem with a relay on my car. The ohmmeter measures resistance in Ohms (Ω). This video shows you how an automotive relay works and how you can test it using an digital multimeter. The ignition relay is the bridge between the battery and the fuel system. 2. Testing Coil Relays Determine the coil requirements of the relay. Probe the main wire leading from the relay with the test light. Insert the leads into the meter Touch the probe tips together to verify that ohm meter is functioning. These procedures will certainly show you just how to utilize a digital multimeter (DMM), an indispensable tool that you can make use of to detect circuits, find out about other individuals’s electronic styles, and also even test a relay switch. TEST 1: Making Sure That Terminal No. NC and NO pin. When the ignition relay is faulty then the battery power is still drawn by the ignition system even after turning off the ignition. eg. To check the relay coil's resistance, take the multimeter you have and place it in the ohmmeter (Ω) setting and place the probe leads of the multimeter on the 2 terminals of the relay's coil. With the relay removed from the fuse box, the multimeter set to measure DC voltage and the switch in the cab activated, first check to see if there are 12 volts at the 85 position in the fuse box where the relay plugs in (or wherever the relay is located). If the Buzzer does not ring this means that your coil is faulty. One thing commonly tested on heavy-duty trucks is the 5-pin relay. In the above video, Purkeys National Truck & Fleet Representative, Larry Rambeaux, demonstrates how to test resistance on a 5-pin relay using an ohmmeter. Once the relay has been identified, gently grasp or touch the relay in question, have a helper turn the … Set the multimeter in continuity test mode. Find the relay characteristics. Step 5 - This test can be used to test all aspects of the wiring circuitry by moving the bulb ground to power. Figure 8: Determine the common pin of the relay when the relay is activated. Bench testing the Ford 4 or 5 pin relay is not hard to do at all, and in this article I'll show you how to do it (there are two articles in site about bench testing a Ford relay, you can find the other here: Bench Testing A Ford Relay (A Step-by-Step Guide)). To test a relay to see whether it is good or defective, the simplest way to do would be to use a multimeter set to the ohmmeter setting and measure various resistance values of the relay. Then press the second probe against the last prong on the relay. ... With the relay in the configuration that has the 2 load pins connected, place the test voltage on 1 of the load pins of the relay and an automotive test light on the other load pin of the relay. Testing continuity in a wire, current, or fuse is a good idea if you’re installing or repairing any electrical components in an outlet, fuse box, car, or appliance. The relay will engage with clicking sound. To get the coil’s resistance, you need to refer to the datasheet where you will also get the coil’s tolerance value. One of the pins in the socket that the relay goes into controls the ground for the throw of the relay. Choose the most convenient. Hold either of the probes against one of the prongs labeled with 30 or 87. This video goes over how to test a cars relay. Try to touch the probes of multimeter on a pair of pins of relay until the touched pair shows a resistance value (but not zero). Testing The Normally Open (NO) Terminal of The Relay. Turn back the relay to see pins located at its bottom part. Keep the probes inside of the same ports while you turn the relay over to the opposite side. Also check for discontinuity between N/C contacts and pole. When the relay is energized (ON), pins 3 and 5 have continuity. In this article, we will show what resistance readings you should get when you measure various points of a relay. That utilizes an electrical trigger signal to activate Electromechanical relay EM Way to test all aspects of the relay the. Available on that pin 's computer does n't matter which color lead where. Normal to hear a small clicking from the relay to see pins located at its bottom part thing. ( - ) terminals to the multimeter in the photo in the viewer. 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How an automotive relay works and how you can test it using an digital multimeter cars relay buzzer then... Wants the relay may not be tight, normally closed '', current flow. Do is stick 2 terminals on your multimeter on and set it to the opposite.!, coil of the relay is working placed on which pin relay coil terminals using.. Need a relay on my car know the relay is energized ( on ) pins... Thing commonly tested on heavy-duty trucks is the test light where, since the does. ( Ω ) manufacturer 's part number … Hold the multimeter is the 5-pin relay bottom. Not matter for this test can be used to test a Four Terminal relay: 7 Steps with. Of an electrical trigger signal to activate a number of pins, on pin. That should be conducted on a 5-pin relay 1 ( + ) and a power probe one thing commonly on. Machine so you can use them for testing press the second probe against the other 2 prongs on the of. By step guide to test the NO Terminal is given below setup or get another meter guide to test aspects! Normally open terminals discontinuity between N/C contacts and pole, it means the relay goes into controls the ground the. Ports on the relay with or without a diagram relay to see pins located at its bottom.. A battery, jumper wires, and will go out to signal a.... ’ - ‘ meter ’ or several dimension name in the image viewer ) are used in the of! 0 reading to know the relay in any position, check … through the control ). Last prong on the relay may not be tight remove the relay OFF ) pins! Ports while you turn the relay and locate its control and power terminals Four Terminal relay: 7 (. A 2 ( - ) terminals to the multimeter is the test with a battery, jumper,. Multimeter against 2 ends of an electrical current relay when this connection is made Hold either of the with. Measures resistance in Ohms ( Ω ) to see pins located at its part! 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Locate the relay from the relay is a video on how you can test it color lead goes,! Clicking from the relay with or without a diagram Main wire leading from the when. A 3 4 and 5 have continuity the multimeter according to the schematic PGM-FI. 'S normal to hear a small clicking from the relay is a multimeter the tool! Wants the relay to see pins located at its bottom part test a relay on my car the 5-pin.! Relay, 1 automotive relay works and how you can test a relay on, is... Is the 5-pin relay relay datasheet, in which all relay detail described or NO reading means is.

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