We have rich experience developing various car wiring cables for vehicle diagnostic systems, on-board electronic modules and aftermarket accessory installation. Our engineering team designs and manufactures diverse custom auto wiring harness for passenger cars, commercial vehicles and automotive electronic equipment. We also supply a comprehensive range of automotive wiring harness connectors including standard OBD2 interfaces, multi-pin signal connectors and customized terminal configurations, fully complying with RoHS environmental standards and strict quality inspection procedures.
This car OBDII cable is a straightforward signal conversion harness designed for connecting aftermarket electronic devices to a vehicle's standard OBD2 diagnostic port. Different from complex multi-branch J1939 splitters and PCB-integrated network distribution cables, this product adopts a simple single-channel direct connection architecture: one end features a standard OBD2 16Pin female connector with angled housing design for convenient port access in confined vehicle interior spaces, while the other end is fitted with a 4Pin green PVC connector for direct connection to specific on-board electronic modules or diagnostic accessories. This clean, direct signal path design minimizes connection points and potential failure sources, making it ideal for applications requiring reliable OBD2 signal access without unnecessary branching or complex circuitry.
The internal conductor adopts UL1007 certified 20AWG single-core wires in four color-coded configurations (black, yellow, red, blue), with each wire color corresponding to a defined OBD2 pin function for easy identification and troubleshooting. The OBD2 female connector uses standard pin mapping including ground connections (pins 4 and 5), signal lines (pins 6, 12 and 14), ensuring compatibility with standard OBD2 vehicle protocols. The main cable section is wrapped with black braided mesh sleeve for abrasion resistance and mechanical protection, effectively extending service life in vehicle interior environments where cables may rub against trim panels or other components. A heat shrink tube is applied at the 4Pin connector transition point for reinforced strain relief and sealing, preventing wire breakage caused by frequent bending and pulling during installation and use. The angled OBD2 connector housing is made of durable ABS+PC material with nickel-plated brass terminals for stable conductivity and oxidation resistance under long-term use.
| Item |
Description |
| Product Name |
Custom OBD2 16Pin Female to 4Pin Green Connector Cable |
| Type |
OBD2 Diagnostic Adapter Cable / Automotive Signal Conversion Wiring Harness |
| Rated Test Voltage |
DC 300V 0.01S Test Voltage, 12V DC Working Voltage |
| Pins Material |
Nickel Plated Brass Terminals, Gold Plating Optional |
| Plug Material |
ABS+PC Automotive Grade OBD2 Connector Housing, 4Pin Green PVC Connector |
| Working Temperature |
-40℃ ~ +105℃ Or Customized |
| Length |
1000±20mm, Customized Length Available |
| Minimum Insulation Resistance |
≥10MΩ |
| Maximum Conduction Resistance |
≤3Ω |
| Compliance |
RoHS Compliant |
| Application Fields |
Automotive OBD2 diagnostic, vehicle ECU connection, on-board electronic equipment, car diagnostic tool adapter, automotive signal conversion, vehicle maintenance wiring, OBD2 port extension |
| Specific Shipping Cost |
Please Contact Us |
Every finished cable undergoes strict 100% electrical testing before delivery, including full continuity inspection, DC 300V withstand voltage test, insulation resistance measurement and conduction resistance verification to eliminate open circuits, short circuits and pin misalignment. Insulation resistance is maintained above 10MΩ while maximum conduction resistance is controlled within 3Ω, ensuring stable signal transmission across all connected channels. All raw materials fully comply with RoHS environmental requirements. The connector housings are visually inspected for cracks, deformation and surface defects, and the cable jacket is checked for abrasion and insulation damage. The standard overall length is 1000±20mm, providing sufficient reach for most vehicle interior installation scenarios while avoiding excessive cable slack that could cause clutter or interference. The product is bundled with cable ties and packaged in protective PE bags for convenient storage and transit.
This OBD2 to 4Pin conversion cable is widely applied in automotive diagnostic tool connection, on-board electronic module installation, vehicle performance monitoring device wiring, aftermarket accessory power and signal connection, fleet management device integration, car alarm and security system wiring, and OBD2 port extension for difficult-to-access vehicle locations. It serves as a reliable signal conversion medium for installers and technicians requiring a clean, direct connection between standard OBD2 vehicle ports and custom 4Pin electronic modules. If you need to adjust cable length, wire gauge, pin assignment, connector type or shielding structure for different vehicle configurations or electronic device requirements, our engineering team can develop exclusive solutions using tailored automotive wiring harness connectors. We continuously optimize the signal stability and mechanical durability of every product in our custom auto wiring harness lineup, and our comprehensive car wiring cables portfolio can support various custom interconnection projects for passenger vehicles and automotive electronic equipment. Welcome to send technical drawings, interface specifications or sample requests for detailed evaluation and competitive quotation.
