DUOYI DY25 Automotive Electrical Open&Short Finder Circuit Tester User Guide

DUOYI DY25 Automotive Electrical Open&Short Finder Circuit Tester is a professional tool that can detect faults such as open circuits and short circuits in automotive circuits. The following are the basic steps for using DUOYI DY25 Automotive Electrical Open&Short Finder Circuit Tester:

1. Prepare tools and materials: DUOYI DY25 Automotive Electrical Open&Short Finder Circuit Tester, battery (usually requires a 9V battery), test leads.

2. Prepare the vehicle to be tested: Park in a safe area, turn off the engine and all electronic devices.

3. Check the circuit: Check the circuit to be tested, confirm that the circuit is closed, and all related fuses are removed.

4. Install the battery: Open the battery compartment on the DY25 tester and install the 9V battery.

5. Connect the test leads: Connect the test leads to the correct port on the DY25 tester. Depending on the testing requirements, connect the red or black lead to the corresponding port.

6. Set the test mode: Select the test mode according to the needs. The DY25 Automotive Electrical Open&Short Finder Circuit Tester can detect faults such as open circuit, short circuit, breakage, positive and negative polarity.

7. Test the circuit: Connect the test leads to the circuit to be tested. After the test leads contact the circuit, the DY25 tester will emit a beep or flash LED lights to indicate the type and location of the fault.

8. Troubleshoot: Confirm the location of the fault according to the test results, and take appropriate measures to repair the problem.

9. Turn off the tester: After the test is completed, remove the test leads and turn off the DY25 tester.

In summary, using the DUOYI DY25 Automotive Electrical Open&Short Finder Circuit Tester requires careful preparation and operation to ensure safety and correctness, helping you quickly and accurately detect and solve problems in automotive circuits.