
OBD (On-Board Diagnostics) cables connect your OBD scanner to a vehicle’s 16-pin port, enabling diagnostics, retrieving error codes, issuing commands, and running essential vehicle tests.
Romtronic provides custom OBD cables with flexible lengths, connector types, and compatibility for a wide range of vehicles. With decades of experience in automotive electronics, we deliver durable, precise, and reliable wiring solutions for professional use.
Our custom OBD cable styles
Our OBD cable manufacturing process






Advantages of our customized OBD
- High-end complex OBD cable connectors can be customized.
- Short lead time: All flow steps (soldering and over-moulding; seal direct attaching included) are made in-house, with a general turnaround between 10 and 15 business working days per portion.
- IATF 16949 Certified – A wide range of connector positions and type options ensures that the cable conforms to most design requirements every time.
- Small-volume production orders are accepted at affordable prices.
Engineering Assurance – Electrical Testing
Electrical testing is embedded into every Romtronic cable assembly program. From prototype to mass production, we apply structured electrical verification to ensure functional accuracy, electrical safety, and long-term reliability.
- 100% continuity and wiring validation
- Hi-pot and insulation resistance testing
- Resistance and voltage drop verification
- Custom functional electrical test development
Learn more about our Electrical Testing process
Frequently Asked Questions (FAQs)
Q1: What types of OBD cables do you manufacture?
We customize OBD-I and OBD-II cables, including 16-pin J1962 connectors, OBD to USB, OBD to DB9, and OBD to custom interfaces for automotive diagnostics, fleet management, and telematics applications.
Q2: Can you customize the pinout and wiring configuration for specific vehicles or devices?
Yes. We offer full customization of pin assignments, wire gauge, jacket material, and connector types based on your protocol and hardware requirements.
Q3: Do your OBD cables support CAN, K-Line, or other diagnostic protocols?
Absolutely. Our OBD cables are compatible with common automotive communication protocols including CAN, K-Line, ISO 9141, and SAE J1850.
Q4: Are your OBD cables suitable for outdoor or rugged use?
Yes. We offer durable overmolded designs, strain reliefs, and optional waterproofing to ensure long-term performance in tough environments such as fleet vehicles and outdoor testing.
Q5: What is your MOQ for custom OBD cables?
We’re flexible. Whether you need prototypes, low-volume batches, or large-scale production, we can support your project at any stage with quick turnaround and reliable quality.
Get in Touch for Custom OBD Cable Solutions
Romtronic offers custom OBD (On-Board Diagnostics) cables for automotive diagnostics, fleet management, telematics, and electronic control systems. We provide various OBD I and OBD II connector options, cable lengths, pinouts, and overmolding designs to meet your exact project requirements.
To request a quote, sample, or discuss your OBD cable needs, feel free to contact us through the form on this page or using the information below — our team will respond within 12 hours with tailored assistance.
📧 Email: info@romtronic.com
📞 Phone: (+86) 199-2816-5824
Romtronic delivers durable, high-performance OBD cable solutions trusted by automotive and electronics manufacturers worldwide.












