What is the issue with abnormal post-processing wiring harness?

[VanTaylor]

The main causes of abnormal post-processing wiring harness include the following aspects: 1. Natural factors: The wiring harness has exceeded its service life, leading to aging of the wires, damage to the insulation layer, and inadequate mechanical strength, resulting in short circuits, open circuits, and grounding between circuits, which can burn out the wiring harness. Many cases of electrical equipment malfunction are caused by poor contact, often due to oxidation or deformation at the wiring harness terminals. 2. Equipment failure causing damage to the wiring harness: Malfunctions in electrical equipment can easily damage the wiring harness, with common issues including short circuits and open circuits. 3. Subjective human factors: During the assembly or repair of automotive components, metal objects may crush the wiring harness, causing the insulation layer to rupture; improper positioning of the wiring harness; incorrect connection of electrical equipment leads; reversed connection of the battery's positive and negative leads; and during the repair of problematic circuits, haphazard wiring connections or cutting of wires can affect electrical equipment and even burn out the wiring harness.