Automotive Diagnostic Wiring Harness Manufacturer
Reliable wiring solutions for automotive diagnostics.
20-Year Experience
Automotive wiring harness manufacturing
ISO 9001 / IATF 16949
International quality standards
OEM / ODM
Custom cables to your specifications
About Guangdong Wansheng Jintong Technology Co., Ltd.
With two decades of experience in automotive wiring harnesses, we are a professional manufacturer of diagnostic harnesses such as J1962/OBDII, J1939, J1708 and RP1226. We adhere to ISO 9001 / IATF 16949 international standards and focus on high-quality, customized wiring solutions for stable and reliable signal transmission.
ODM & OEM Category
All products are produced according to approved drawings and samples.
Heavy Truck Cables
J1939 / J1708 Cables
J1962 OBD2 Cables
New Energy Cables
Our Solutions
Specific solutions for every industry we serve.
Passenger Vehicles
Commercial Vehicles
Construction & Agriculture
New Energy Vehicles
Our Advantages
Two Decades of Experience
With two decades in automotive wiring harnesses, we focus on high-quality, customized wiring solutions.
International Standards
We adhere to ISO 9001 / IATF 16949 for stable and reliable signal transmission.
OEM / ODM Customization
We accept OEM orders, including dedicated harnesses for various car models and OBDII series cables.
Wide Product Range
From diagnostic instrument harnesses and anti-theft cables to network and computer cables.
Certified & compliant
Have a custom cable requirement?
Send us your drawing or specification. Our engineers reply within 24 hours.