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Overview
Universal Compatibility: Relay tester is compatible with all types of cars, making it a versatile tool for any car owner. Accurate Diagnosis: With its ability to test relays, this tool can help diagnose any problem with your car's electrical system. Easy to Use: The simplicity of this tool makes it easy to use, even for those who are not experienced in car repair. Introduction: 1. Connect the power cables to the car battery: black alligator clip to the negative terminal, red alligator clip to the positive terminal. 2. The tester is powered on when the LED lights up RED. 3. Check the relay by plugging in the tester. If it is a 4-pin relay, select "4-pin" on the tester. If it is a 5-pin relay, select "5-pin" on the tester. 4. Plug the relay into one of the three sockets. 5. Press the "TEST" button. 6. The tester will check the relay pin configuration. The tester will light up the RED LED if the relay is not the same as most common automotive relays or if the relay pin is destroyed. 7.