Car Relay Testing 101 A Guide for Every Driver

You'll need a multimeter, alligator clips, test leads, and a benchtop power supply or a 12V battery. The multimeter allows you to check the continuity. Take a multimeter, set it to measure resistance, and use the two probes to find the pair of terminals that have continuity between them. 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. Product details ... Feature:  1. USED: the relay tester is the 12V battery, the voltage range is 11V-15V and the coil is 20 ohm. It can quickly test pin/5 pin ... ... automotive relay works and how you can test it using an digital multimeter. This is the easiest way to do it out of the car and the only way ... Most will probably know this ,but to test a relay ,it is very easy by just using regular continuity tester,from post 30 to post 87a ,you ... Shop Relay Tester Autozone ; LED Indicator Light Car Batter… $8.97. $55.86 · 5.0 · 19 ; Car Relay Tester 12V Electronic A… $14.88 ; Newest Red Relay Tester 12V Unive ... Relay Coil testing is done across terminals #85 and #86 or terminals #1 and #2 depending on the relay numbering. ... Service Tip: If the relay is ... 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 ... Bench Testing: Bench testing involves removing the relay from the vehicle and applying electrical power to its terminals manually. This method ...