Custom OBD Cable Assembly Manufacturer

Yihetai is a professional custom OBD cable assembly manufacturer in China, providing reliable automotive diagnostic cable solutions for vehicle electronics, telematics devices, fleet management systems, OBD scanners, GPS trackers, data loggers and aftermarket automotive equipment. As an experienced wire harness manufacturer and cable assembly supplier, we manufacture customized OBD cables according to customer drawings, samples, BOM lists or application requirements.

Our OBD cable assembly can be customized with OBD-I, OBD-II, J1962 16-pin male or female connectors, right-angle connectors, open-end wires, DB9, USB, Molex, JST, TE, M8/M12, waterproof connectors and customer-specific interfaces. We also support custom wire gauge, cable length, pinout, shielding, jacket material, overmolding structure, strain relief, labeling, color and packaging.

With more than 25 years of wiring harness experience, Yihetai offers a complete custom wiring solution for both low-volume prototype orders and mass production projects. If you need a dependable custom cable assembly for automotive diagnostics, onboard data collection, vehicle testing or smart mobility equipment, send us your drawing or sample for fast evaluation and quotation.

What Is OBD Cable Assembly?

An OBD cable assembly is a customized cable or wire assembly used to connect a vehicle’s On-Board Diagnostics port with diagnostic, monitoring or communication equipment. It is designed to transmit vehicle data, diagnostic signals, CAN bus communication, power supply or ground connections between the vehicle and external devices.

Most modern OBD-II cable assemblies use a 16-pin J1962-style connector, which allows diagnostic tools or electronic modules to communicate with the vehicle system. Depending on the application, the cable can be designed as a simple extension cable, a male-to-female adapter, a splitter cable, a pigtail harness, a CAN signal cable or a special interface cable connected to USB, DB9, M12, RJ45, Molex, JST, TE or other connectors.

Compared with standard off-the-shelf OBD cables, a custom OBD cable assembly can better match your device layout, connector orientation, installation space, vehicle model, wiring pinout and durability requirements. For engineering teams, the right OBD cable can reduce installation time, improve signal stability and avoid unnecessary redesign during equipment integration.

Common Custom OBD Cable Assembly Types We Manufacture

OBD-II Male to DB9 Cable Assembly
OBD-II Female Extension Cable
OBD to USB Diagnostic Cable
OBD to RJ45 Communication Cable
OBD Y Splitter Cable Assembly
OBD to Open Wire Harness
OBD GPS Tracker Cable
OBD CAN Bus Cable Assembly
OBD Power Supply Cable
Waterproof OBD Cable Assembly
Overmolded OBD Cable
J1939 to OBD Adapter Cable
OBD ECU Programming Harness
Custom Automotive Diagnostic Wire Harness

We can support both low-volume prototype projects and high-volume OEM production.

Key Features of Our OBD Cable Assembly

Custom lengths from 0.5m to 20m and wire configurations for specific vehicle ports
Custom OBD2 male, female, extension, Y-splitter and open-end cable configurations are available
Compatible with J1962-style 16-pin OBD connectors for automotive diagnostic and telematics applications
Optional DB9, USB, Molex, JST, TE, waterproof or customer-specified connector matching
Cable length, wire gauge, pinout, color, jacket and shielding can be customized
Overmolded connector design improves strain relief, appearance and long-term durability
Suitable for CAN bus, K-line, power, ground and vehicle signal transmission
Suitable for CAN bus, K-line, power, ground and vehicle signal transmission
100% electrical testing before shipment ensures correct pinout, continuity and stable performance

Technical Specifications

Item	Specification Options
Product Name	Custom OBD Cable Assembly / OBD2 Cable Assembly
Connector Type	OBD-I, OBD-II J1962 16-pin male/female, right-angle, Type A, Type B
Device-Side Connector	DB9, USB, Molex, JST, TE, M8, M12, RJ45, open-end, custom connector
Pin Configuration	16-pin OBD2, customized pinout, partial pins or full pins
Cable Type	Multi-core cable, shielded cable, automotive cable, flat or round cable
Wire Gauge	18AWG–24AWG, customized according to current and signal requirements
Conductor	Bare copper, tinned copper, stranded copper
Cable Length	100 mm to 10 m or customized
Jacket Material	PVC, TPE, TPU, PE, XLPE, silicone or custom material
Shielding	Optional aluminum foil, braided shield or drain wire
Rated Voltage	Customized according to application requirements
Temperature Range	Commonly -20°C to +80°C; higher temperature materials available
Process	Cutting, stripping, crimping, soldering, assembly, overmolding, labeling
Testing	Continuity, short circuit, pinout, insulation resistance, hi-pot test
Certification Support	ISO 9001:2015, UL, IATF 16949 manufacturing system support
Production Type	Prototype, small batch, OEM and mass production

Applications

Our OBD cable assembly solutions are widely used in:

Electric vehicle diagnostic systems
New energy vehicle testing equipment
Battery monitoring interface cables
Smart mobility and connected vehicle devices
Emergency vehicle electronic systems
Automotive R&D laboratory testing harnesses
Customized OEM wire harness integration projects
Automotive diagnostic equipment
Vehicle testing and maintenance tools
Fleet management systems
Aftermarket automotive electronic accessories

CAN bus data acquisition devices
Vehicle ECU testing equipment
Commercial vehicle telematics systems
Engineering vehicle monitoring systems
Industrial vehicle control and monitoring equipment
OBD-II scanners and code readers
GPS tracking devices
Car data recorders
Insurance telematics devices
Smartphone-connected vehicle diagnostic devices
Vehicle health monitoring modules

For customers developing diagnostic tools, fleet terminals or automotive electronic devices, Yihetai can provide an OEM wire harness and custom cable assembly solution that fits the device housing, vehicle port location and electrical interface requirements.

Customization Options

At Yihetai, all OBD cable assembly products can be customized according to customer requirements.

Custom Item	Available Options	Notes
Wire Type	Automotive wire, UL wire, shielded cable, multi-core cable	Selected by signal, current and environment
Conductor	Bare copper, tinned copper, stranded copper	Customized according to flexibility and conductivity
Wire Gauge	18AWG–24AWG or customized	Based on power, ground and signal requirements
Cable Length	0.3-15m	Customized accordingly
Color	Black, red, yellow, white, gray or custom colors	Wire color sequence can follow drawings
OBD Connector	OBD-II male, female, Type A, Type B, right-angle	J1962 16-pin options available
Device Connector	DB9, USB, Molex, JST, TE, M8/M12, RJ45, open-end	We support connector matching
Terminal	Crimp terminal, solder terminal, ring terminal, pin terminal	Pull force testing available
Jacket Material	PVC, TPE, TPU, PE, silicone, XLPE	Flame-retardant or flexible materials available
Process	Crimping, soldering, overmolding, sleeving, labeling	Custom assembly process supported
Protection	Braided sleeve, heat shrink tube, corrugated tube, shielding	For abrasion, EMI or installation protection
Testing	Continuity, pinout, hi-pot, insulation, pull test	100% electrical testing before shipment

We can manufacture based on drawings, samples, BOM lists, electrical diagrams, pinout tables or application requirements.

Send us your drawing, sample or specification for a fast quotation

Manufacturing Capability

Yihetai is a professional wiring harness factory with in-house capabilities for wire processing, cable assembly, terminal crimping, soldering, injection molding, overmolding, assembly, inspection and electrical testing. For OBD cable assembly projects, our engineering team can review your connector requirements, pinout, cable structure, installation environment and production target before providing a practical manufacturing solution.

From material selection to final assembly and testing, all production processes are carried out under strict quality control to ensure consistent product performance and delivery reliability. We support prototype development, trial production, low-volume manufacturing and high-volume OEM production. Typical lead time for prototypes is 5-7 days, and mass production can usually be arranged within 3-4 weeks depending on material availability, tooling requirements and order quantity.

As a cable assembly manufacturer with long-term experience in automotive wire harness and overmolded cable assembly, Yihetai can help customers reduce sourcing complexity, improve assembly efficiency and achieve stable batch-to-batch quality.

Quality Assurance & Control

Yihetai implements full-process quality control with documented ISO systems, from incoming inspection to final packaging, ensuring every OBD cable assembly meets specs. Our engineers oversee each stage to prevent defects and maintain traceability. We are certified to ISO 9001:2015, UL, and IATF 16949 standards, validating our expertise as a wire harness manufacturer for automotive and electronics.

Specific inspection items include:

Incoming material inspection for wire and connector compliance
Terminal crimp pull test (up to 100N force)
Visual and continuity check on 100% of assemblies
High-voltage test (500V DC for 60s)
Dimensional and fixture inspection per drawings
Every harness is delivered with guaranteed electrical integrity and consistent quality across batches

Why Choose Yihetai

25+ years of custom wire harness manufacturing experience serving automotive, industrial electronics, home appliances, renewable energy, medical, lighting, and communication industries

Strong engineering support for drawing review, pinout confirmation, connector selection, and cable structure optimization for production

Complete in-house wire and cable processing from material selection to assembly, overmolding, and testing

Flexible support from prototype to mass production, including engineering samples, small-batch trial orders, and high-volume manufacturing

Strict quality control with 100% electrical testing for continuity, pinout, insulation, short circuit, and other custom requirements

Competitive pricing from a direct wire harness factory in China, helping customers reduce sourcing costs while ensuring stable quality and reliable delivery

Frequently Asked Questions

Can Yihetai customize the pinout of an OBD cable assembly?

Yes. Yihetai can customize the pinout according to your electrical diagram, vehicle interface, diagnostic device or communication module. You can send us a pinout table, sample cable, PCB connector requirement or wiring schematic. Our engineering team will review the wire sequence, signal definition, connector orientation and assembly feasibility before production.

What types of OBD connectors can you provide?

We can provide OBD-I and OBD-II connector options, including J1962 16-pin male connectors, female connectors, right-angle connectors, extension connectors and overmolded connector structures. For the device side, we can assemble DB9, USB, Molex, JST, TE, M8, M12, RJ45, open-end wires or customer-specified connectors based on your application.

Can you make overmolded OBD cable assemblies?

Yes. Yihetai manufactures overmolded cable assemblies with customized mold shape, strain relief, connector housing, cable outlet direction and jacket material. Overmolding helps improve mechanical strength, appearance consistency and long-term durability, especially for diagnostic tools, fleet devices and cables that require frequent plugging and unplugging.

What information should I provide for a quotation?

For a fast quotation, please provide drawings, photos, samples or specifications showing the OBD connector type, cable length, wire gauge, pinout, device-side connector, jacket material, shielding requirement, labeling, testing standard and estimated order quantity. If you only have an application idea, our team can help evaluate a suitable custom wiring solution.

Do you support prototype and small-batch production?

Yes. Yihetai supports prototype samples, engineering validation, small-batch production and mass production. For new OBD cable assembly projects, we can first make samples for fit, function and electrical testing. After your approval, we can move to batch production with controlled process documents, inspection standards and consistent quality requirements.

Looking for a reliable OBD cable assembly manufacturer?

Send us your drawing, sample or technical requirements, and Yihetai will provide a customized wire harness or cable assembly solution for your project.