In this post we are going to learn how to test a relay with a multimeter step by step. This relay has a universal application and can be used in automotive setups car sound systems security systems and various other applications.
Automotive Relay Diagram
How to test a 5 pin relay. How to test a relay with a multimeter. Ratchets and wrenches 1039815 views. Relay sockettype r5 pinblade300vac15adin railpanel mount8501npack of 10. Technicians will also need to know how to use ohms law vir to see if everything is working within specifications. How to test relays ericthecarguy duration. In this article we will see what resistance readings are required to declare that the relay you are using is the good or defective.
If you dont switch the meter to resistance or ohms the greek symbol for omega and see if you have somewhere between 0 and maybe 100 ohms between the coil contacts. Many technicians are quick to replace this part without properly testing it first. 8501nr41b from schneider electric at allied electronics automation. How to test a 3 4 or 5 pin relay with or without a diagram duration. One thing commonly tested on heavy duty trucks is the 5 pin relay. The simplest way of finding this is to use a multimeter with an ohmmeter setting and then measuring the resistance values by checking its terminals.
How 5 wire relays work spdt duration. Touch the test leads of a dc multimeter to the two connections on the relay that are indicated as the coil contacts by a diagram or data sheet. The main reason for testing a relay is to find whether it is a good or defective one. Service manuals are written with the presumption that technicians know how to properly use an ohmmeter and understand. Starter maintenance duration. If so the coil should be good.
Relay comes with mounting tab for easy installation. Ratchets and wrenches 1031964 views. Ratchets and wrenches 1039800 views. How to test a 3 4 or 5 pin relay with or without a diagram duration. How to test a 3 4 or 5 pin relay with or without a diagram duration. To test it technicians need to know what the resistance should be according to manufacturer specifications.
You should see or hear the continuity indicator from the meter. A pack of 5 pin spdt 12v 40 amp electrical relay with pre wired relay socket harness.