What are the common faults of OBD2 to J1939 and J1708 cables?

What are the common faults of OBD2 to J1939 and J1708 cables?

The common faults of OBD2 to J1939 and J1708 cables are as follows:

Interface malfunction

Loose interface: Due to vibrations during vehicle operation or frequent plugging and unplugging, the OBD2 interface, J1939 interface, or J1708 interface may become loose, resulting in poor contact and data transmission interruption or instability.

Interface damage: Improper plugging and unplugging operations, external impact, etc. may cause the pins of the interface to bend, break, or damage the internal circuit, resulting in the inability to connect and transmit data properly.

line fault

Wire breakage: The wires inside the cable may break due to long-term bending, stretching, compression, or aging.

Wire short circuit: The insulation layer of the cable is damaged, which may cause the internal wires to come into contact with each other, resulting in a short circuit fault.

Shielding layer damage: The shielding layer is crucial for preventing electromagnetic interference. If the shielding layer is damaged, external electromagnetic interference may affect the transmission of signals inside the cable, resulting in data errors or loss.

Protocol conversion failure

Conversion module failure: The protocol conversion module is the core component of the cable. If the module fails, it will not be able to perform protocol conversion and data parsing correctly. Possible internal circuit damage may be due to quality issues, overheating, overvoltage, and other reasons with the module itself.

Software malfunction: The software in the protocol conversion module may have version incompatibility, program errors, and other issues that affect the normal conversion and transmission of data.

Other faults

Electromagnetic interference: The strong electromagnetic field generated by other electronic devices inside the vehicle may interfere with the signal transmission of cables, leading to data errors or communication interruptions.

Environmental factors: High temperature, humidity, corrosive gases, and other environmental factors may affect the performance and lifespan of cables.