How to repair after the car wiring harness is burned out?

There is generally no protective device in the wiring harness burnout line. Harness burnout has some regularity. In the power system circuit, which point is the ground wire, which point the wire harness burns.

If it is caused by a fault in the electrical equipment, the wiring harness burns to the wiring area of the faulty electrical equipment. After the wire harness is burned out, it usually needs to be replaced; if the burnout is not serious, it can be repaired as follows:

1. Remove the burned wire harness insulation layer, cut both ends of the burned wire, reconnect the burned part with wires of the same size and the same length, and connect the connection part with an insulating tape.

2. When wiring, divide the wires into two halves and twist them separately. Then, twist the two wires that have been twisted together, bend them to be parallel to the wires and tightly with the wires, and wrap the insulation tape. If the harness is completely broken, it can be connected with a short wire. When connecting, each wire connector should be staggered with each other. Each connector is wrapped with insulating tape. Finally, the connected wire is wrapped with insulating tape.

Wiring should not shrink

The length of the short original harness, such as the number of burned conductors, should be cut one by one to prevent misconnection.

3, After the wire harness is dismantled and repaired or replaced, the wire harness should be re-wrapped. White band or plastic band can be used for bandaging with a half-stacked square cable harness pattern. After the wire harness is wrapped, dip the insulating paint or asphalt paint to increase the strength and insulation performance of the wire harness. The reconnected wiring harness should be firm and reliable to ensure vehicle performance and safety.