What are the automotive wiring harness tests? How to test automotive wiring harnesses?

An automotive wiring harness is a collection of wires and connectors that connect the electrical equipment of the entire vehicle. The quality of the wiring harness directly affects the safety and reliability of the entire vehicle. Therefore, during the production process, automotive wiring harnesses need to be rigorously tested to ensure their quality meets the standards.
I. Automotive wiring harness test items
1. Conductivity test
The conductivity test is to test the conductivity of the wiring harness. Through the conductivity test, we can find out whether there is poor contact, broken circuit, short circuit and other problems in the line. Usually a multimeter is used to conduct the test.
2. Insulation test
Insulation test is to test the insulation performance of the wiring harness, through the insulation test can find out whether there is leakage in the line. Usually use insulation resistance tester to conduct the test.
3.Withstand Voltage Test
The voltage withstand test is a test of the wiring harness's ability to withstand voltage. The voltage withstand test reveals whether the wiring can withstand the rated voltage. Usually a high voltage tester is used to conduct the test.
4.Waterproof test
Waterproof test is to test the waterproof performance of the wiring harness, through the waterproof test can find out whether the line has water seepage, water leakage and other problems. Usually use spray test, immersion test and other methods to test.
5. Anti-interference test
Anti-interference test is to test the anti-interference ability of the wiring harness, through the anti-interference test can find out whether the line can resist interference from other electronic devices. Usually use methods such as simulated signal interference for testing.
6. Mechanical Performance Test
Mechanical performance testing is to test the mechanical strength, durability and other properties of the wiring harness, through mechanical performance testing can be found whether the line can withstand the daily use of tensile, bending, vibration and other strength. Usually use tensile test, bending test, vibration test and other methods to test.
7. Weather resistance test
Weather resistance test is to test the weather resistance of the wiring harness, through the weather resistance test can find out whether the line can withstand high temperature, low temperature, ultraviolet light and other climatic conditions of use. Usually use high temperature aging test, low temperature aging test, ultraviolet aging test and other methods to test.
Second, the automotive wiring harness test method
1. Manual inspection method
Manual inspection method is a traditional wiring harness testing method, usually carried out by special quality inspection personnel, through visual and manual inspection of the quality of the wiring harness is in line with the standards.
2.Instrument Inspection Method
Instrument testing method is a modern wiring harness testing method, using a variety of instruments to test the performance of the wiring harness.

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