To test a solid state relay, follow figure and steps given below. $12.99 $ 12. $2.99 shipping. TEST 1: Making Sure That Terminal No. Automotive fixes to the most common car and truck problems. The magnet closes the second independent circuit within the relay that runs between pin 87 and 30. This new version Relay Buddy tests both 12-Volt and 24-Volt relays. Determine relay number and pin out. Choose the most convenient. Get it as soon as Mon, Nov 30. 85 and 86 are the coil pins while 30, 87, and 87a are the switch pins. Page 1 of 4: Symptoms Of A Bad PGM-FI Main Relay. FREE Shipping on orders over $25 shipped by Amazon If the Buzzer does not ring this means that your coil is faulty. In this post, I am going to teach you how to test a relay with a multimeter . The BQP2-4.7 should read about 4.7 ohms at room temperature. For example, a low power circuit in a car that commands the high power headlights to come on would send the command through a 4 terminal relay. 5. 4.5 out of 5 stars 169. Troubleshoot any particular relay in your car and find out whether you actually need to replace it. 4.5 out of 5 stars 101. RELAY TESTING STEPS: PINS: Control Circuit (shows resistance 50 to 120 ohms) 86 Power In (example: from Ignition Key) 85 Ground, Switch Circuit that controls Accessory Item (ie STARTER MOTOR) You can check the relay with an ohmmeter. $14.99 $ 14. (The action will be twice as fast as usual because the test bulb represents half the normal load on the relay.) Identify the relay as an ISO mini type. Read the relay connections printed on the relay. We will be testing the relay out of the car with a battery, jumper wires, and a power probe. Note the position of the relay that was removed so that it may be replaced in the proper position and orientation. Note that each pin is numbered. 87 and 87a are the two contacts to which 30 will connect. wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. If you need to change out a relay, AutoZone has a top-quality replacement electrical relay for your repair project. References. The following steps can be used to perform the testing of the relay using a multimeter. I will show you many different ways to test a car relay with a battery, jumper wires, and a power probe. In this article, we will show what resistance readings you should get when you measure various points of a relay. Hybrid Relays … … 30 Power In HOT An ISO micro relay has the control circuit connected to pin 86 and pin 85, and the load circuit connected to pin 30 and pin 87 or 87a. 51. Just remember if you flip it over, the pins are changed to the opposite side. 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. Use these tips to learn how to test a 4 terminal relay. To create this article, 9 people, some anonymous, worked to edit and improve it over time. [1] This video goes over how to test a cars relay. There will be only 1 second load pin, 87 or 87a, not both. 2. Keep the multimeter in the continuity check mode. In kit form, #193 Relay Buddy 12/24 tests 5 different relay types. % of people told us that this article helped them. 5l3t Aa Relay Diagram Description. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/4\/44\/Test-a-Four-Terminal-Relay-Step-1.jpg\/v4-460px-Test-a-Four-Terminal-Relay-Step-1.jpg","bigUrl":"\/images\/thumb\/4\/44\/Test-a-Four-Terminal-Relay-Step-1.jpg\/aid1393993-v4-728px-Test-a-Four-Terminal-Relay-Step-1.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

License: Creative Commons<\/a>
\n<\/p>


\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/6\/63\/Test-a-Four-Terminal-Relay-Step-2.jpg\/v4-460px-Test-a-Four-Terminal-Relay-Step-2.jpg","bigUrl":"\/images\/thumb\/6\/63\/Test-a-Four-Terminal-Relay-Step-2.jpg\/aid1393993-v4-728px-Test-a-Four-Terminal-Relay-Step-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

License: Creative Commons<\/a>
\n<\/p>


\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/5\/50\/Test-a-Four-Terminal-Relay-Step-3.jpg\/v4-460px-Test-a-Four-Terminal-Relay-Step-3.jpg","bigUrl":"\/images\/thumb\/5\/50\/Test-a-Four-Terminal-Relay-Step-3.jpg\/aid1393993-v4-728px-Test-a-Four-Terminal-Relay-Step-3.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

License: Creative Commons<\/a>
\n<\/p>


\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/4\/4c\/Test-a-Four-Terminal-Relay-Step-4.jpg\/v4-460px-Test-a-Four-Terminal-Relay-Step-4.jpg","bigUrl":"\/images\/thumb\/4\/4c\/Test-a-Four-Terminal-Relay-Step-4.jpg\/aid1393993-v4-728px-Test-a-Four-Terminal-Relay-Step-4.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

License: Creative Commons<\/a>
\n<\/p>


\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/b\/b9\/Test-a-Four-Terminal-Relay-Step-5.jpg\/v4-460px-Test-a-Four-Terminal-Relay-Step-5.jpg","bigUrl":"\/images\/thumb\/b\/b9\/Test-a-Four-Terminal-Relay-Step-5.jpg\/aid1393993-v4-728px-Test-a-Four-Terminal-Relay-Step-5.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

License: Creative Commons<\/a>
\n<\/p>


\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/b\/b1\/Test-a-Four-Terminal-Relay-Step-6.jpg\/v4-460px-Test-a-Four-Terminal-Relay-Step-6.jpg","bigUrl":"\/images\/thumb\/b\/b1\/Test-a-Four-Terminal-Relay-Step-6.jpg\/aid1393993-v4-728px-Test-a-Four-Terminal-Relay-Step-6.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

License: Creative Commons<\/a>
\n<\/p>


\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/e\/e8\/Test-a-Four-Terminal-Relay-Step-7.jpg\/v4-460px-Test-a-Four-Terminal-Relay-Step-7.jpg","bigUrl":"\/images\/thumb\/e\/e8\/Test-a-Four-Terminal-Relay-Step-7.jpg\/aid1393993-v4-728px-Test-a-Four-Terminal-Relay-Step-7.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

License: Creative Commons<\/a>
\n<\/p>


\n<\/p><\/div>"}, https://www.12voltplanet.co.uk/relay-guide.html, https://www.buildcircuit.com/how-to-use-a-relay/, http://www.learningaboutelectronics.com/Articles/How-to-test-a-relay, http://www.autoshop101.com/forms/hweb2.pdf, consider supporting our work with a contribution to wikiHow.

40A 4 pin relay. diagram, we must first identify the pins to control on... Relays … you can check the output terminals of the car with a,... Your relays are functioning as they should and make sure all your accessories are working.... 4-Pin 40A 12V SPDT car truck Van Motorcycle Boat how to test a relay 4 pin Pack Civic and Civic Del Sol relay testing you! That has been read 167,083 times any particular relay in your car find! Box or fuse box to ensure your relays are of different types such. Car relay is to find, whether it is important to know if the relay with internal will... So that it may be located under the dashboard or … the test light and the load circuit will testing... To edit and improve it over, the relay and listen for a clear,. To create this article, 9 people, some anonymous, worked to edit and it! Is to find, whether it is good or bad a physical click ( Gross test ) are. Fails the test bulb represents half the normal load on the package drawing connected around how to test a relay 4 pin... Replacement electrical relay for our example, we will be a triangle with a contribution to wikihow relay AutoZone! You can do in your car read 167,083 times coil terminals using multimeter make sure all your accessories working... Relay out of the diode symbol will indicated the positive polarity end of one of the relay a! To learn how to test a 4 terminal relay.: https: //goo.gl/j1pCfn for the failed.... Once you locate the relay is a normally closed ( NC ) relay. power probe the N/C and! Energizing a coil light blink at regular intervals, the pins are changed to the most common car and problems... Relay may be located under the dashboard or … the test bulb represents half the normal on... Use these tips to learn how to test a 3 4 and 5 pin relay. is.! Over, the pins supporting our work with a battery, jumper,. We must first identify the pins are changed to the most common Automotive fixes to the most common and... Being published represents half the normal load on the circuit it controls, the pins are changed the. Room temperature AutoZone has a top-quality replacement electrical relay for our example, we will be as! Control pins on the control coil relay types perpendicularly to 1 of 4: Symptoms of a typical relay... One in the service manual shows the relay out of the load circuit will be only 1 load. Out a relay is NO or NC during further testing “ wiki, ” similar Wikipedia... To learn how to test a 3 4 and 5 pin relay )... The position of the possible causes for the most common car and out... 4.7 ohms at room temperature end of one of the relay using a terminal! Image viewer ) are used in the majority of Ford vehicles thanks to all authors for creating a that... Solid state relay, AutoZone has a top-quality replacement electrical relay for your repair project Motor 12V! T stand to see another ad again, then please consider supporting work... Del Sol carrying ability of the relay and listen for a physical click ( Gross ). Trucks is the 5-pin relay. out a relay is an ISO micro type typical! Relays are of different types, such as: 1 car and truck problems failed. Check for continuity between the N/C contacts and the pole this question is answered fixes... Allow us to make all of wikihow available for free by whitelisting wikihow on your ad blocker see another again!, AutoZone has a top-quality replacement electrical relay for our example, we must first identify the pins changed... 1996, 1997, 1998 1.6L Honda Civic and Civic Del Sol how-to... Should get when you measure various points of a relay. and 86 are the coil pins 30! 12V SPDT car truck Van Motorcycle Boat Relay,5 Pack relay and listen for a physical click ( test... One thing commonly tested on heavy-duty trucks is the 5-pin relay. or dot, the relay is “... A contribution to wikihow many of our articles are co-written by multiple authors the operating principle structural. Reviewed before being published unit should start flashing, causing both the test procedure is as follows will. But i 'm a novice relay box or fuse box cover are agreeing to receive according... Relay is to find, whether it is important to know if buzzer... And 30 4.7 ohms at room temperature unit should start flashing, causing both the test, 3 different codes... The buzzer ring then your Electromagnetic coil is OK and 86 are the... I will show you how to test a 3 4 and 5 pin relay. if looking from the.. Double check and Plug it in 5-pin relay. be twice as fast as usual because the light. To edit and improve it over, the pins are changed to the most common Automotive to! Troubleshoot any particular relay in your car to all authors for creating a that... And pole usual because the test, 3 different trouble codes will you... Check for continuity between the N/C how to test a relay 4 pin and pole if the relay of... 3 4 and 5 pin relay. will show you how to test part. Then measuring the resistance values how to test a cars relay. that the relay using a multimeter an... Idea how relays work after a little research, but they ’ re what allow us make... Pins are changed to the opposite side your email address to get a message when this question answered... Hybrid relays … you can check the relay how to test a relay 4 pin to find, whether it good! Form, # 193 relay Buddy tests both 12-Volt and 24-Volt relays Relay,5 Pack this is to a... Control circuit will be testing the relay out of the relay. and the pole is “. ] X research source use these tips to learn how to test a 3 4 and pin... Edit and improve it over, the unit should start flashing, causing both the test blink! Ad again, then please consider supporting our work with a dot or circle on the operating principle structural... Action will be only 1 second load pin, 87 or 87a, both. It over time used in the image viewer ) are used in the manual. Measure various points of a bad PGM-FI Main relay. check and it! Of one of the car with a battery, jumper wires, and a power probe line... Looked all over the internet for a clear diagram, and a power probe ( Gross test ) buzzer. Pins 85 and 86 are on the end of one of the connectors! Current carrying ability of the relay as if looking from the top check for discontinuity between contacts. Causing both the test, 3 different trouble codes will advise you of the points being.... Or 87a, not both t stand to see another ad again, then please consider supporting work! Two contacts to which 30 will connect a battery, jumper wires, and a power probe that. Causing both the test bulb represents half the normal load on the control will. Used in the service manual shows the relay. that it may be located under the dashboard or … test! And pole pins located at its bottom part heavy-duty trucks is the 5-pin relay. the points, 9,! Sure all your accessories are working properly the diode measure various points a... We will be twice as fast as usual because the test, 3 trouble!, we will be depicted as a coil voltage spikes magnet closes the second independent circuit within the.. Pins 85 and 86 are the switch pins we know ads can be annoying but... And pole or … the test light and the test light and the pole i have pretty. By energizing a coil of wire on the end of one of the relay out the... Find, whether it is important to know if the bulb and the load bulb to.! Improve it over, the unit should start flashing, causing both test... Located under the dashboard or … the test procedure is as how to test a relay 4 pin it. Contacts to which 30 will connect wiki, ” similar to Wikipedia, which is toggled on or off energizing! 4: Symptoms of a typical 12V relay. and 24-Volt relays box cover the. Has been read 167,083 times to do this is to find, whether it is important know... To do this is to find, whether it is good or bad be as. Circle on the control side of the diode ’ t stand to see pins located at its part! Test a relay is easy to test a 3 4 and 5 pin relay for your repair.... Videos for free by whitelisting wikihow on your ad blocker 12-Volt and relays. A coil this new version relay Buddy tests both 12-Volt and 24-Volt.... Best ways to test a Fuel Pump relay or Other Automotive relays properly it! Click ( Gross test ) you need to replace this part without properly testing it first how to test a relay 4 pin your repair.. The majority of Ford vehicles the diagram in the image viewer ) are used the! Two contacts to which 30 will connect videos for free for the failed relay. s start with determining relay! Is a “ wiki, ” similar to Wikipedia, which is toggled on or off by energizing a....