When clients need exclusive circuit layout for test benches or aftermarket refitting, our engineering team can match suitable automotive wiring harness connectors and adjust wire gauge, pin assignment and branch layout freely. We strictly implement RoHS and automotive-grade production standards, with every finished custom automotive wire harness undergoing high voltage insulation and bending fatigue testing before leaving the factory, serving auto diagnostic equipment manufacturers, vehicle modification factories and automotive electronic R&D labs all over the world.

This 24V OBD Male to Toyota OBD Female Breakout Wiring Harness with MX Multi Pin Connectors & Open Wire Ends is specially developed for Toyota series vehicle offline ECU detection and multi-signal split testing scenarios, differing from simple one-to-one OBD extension cables on the market by its multi-branch split design with multiple auxiliary terminals reserved. It supports stable 24V working voltage supply, perfectly matching heavy-duty Toyota commercial vehicles and new energy passenger car diagnostic power supply standards, and eliminates the trouble of repeatedly switching different connection lines during on-site vehicle inspection.
The two ends adopt standard OBD male and female interfaces compatible with mainstream Toyota vehicle OBD ports, while a set of MX multi-pin plug terminals and multi-color open bare wire segments are set on the middle branches, which can be quickly connected to test equipment, signal collectors and auxiliary power modules. All matched automotive wiring harness connectors use PA66+GF high-temperature resistant plastic shells and nickel-plated brass pins, which maintain stable conduction performance under the temperature range of -40℃ to 105℃ and effectively avoid loose contact caused by vehicle vibration. The main trunk of the harness is wrapped with wear-resistant black nylon braided sleeve to reduce wire abrasion during long-term disassembly and maintenance.
Built with an inline 2A 32V safety fuse, this harness adds reliable overcurrent protection for ECU reading and programming work to prevent module burnout from instantaneous current surges. If you have unique demands on branch length, wire color matching or extra connector ports, our technical team can adjust all structural details to make a fully customized car wiring harness that fits your exclusive test equipment or modification projects. The internal wires adopt UL1007 certified multi-specification insulated conductors, with clear color differentiation of power lines and signal lines to lower the error rate of manual wiring operation for maintenance technicians.
| Item |
Description |
| Product Name |
24V OBD Male to Toyota OBD Female Breakout Wiring Harness with MX Multi Pin Connectors & Open Wire Ends |
| Type |
24V Automotive Diagnostic Multi-Branch Wiring Harness |
| Voltage |
DC 500V Test Voltage, 12V/24V Working DC, Customized Available |
| Pins Material |
Nickel-Plated Brass Terminals, Gold-Plating Optional |
| Plug Material |
PA66+GF Automotive Grade OBD Connector Housing, MX 3.0 Series Plastic Connectors, Braided Nylon Cable Sleeve |
| Working Temperature |
-40℃~+105℃ Or Customized |
| Length |
Total 870±20mm Stand%ard, Customized Length Available |
| Minimum Insulation Resistance |
≥10MΩ |
| Maximum Conduction Resistance |
≤3Ω |
| Built-in Accessory |
2A 32V Inline Fuse for Overcurrent Protection |
| Application Fields |
Toyota vehicle ECU programming & fault diagnosis, auto repair shop multi-module testing, automotive electronic bench calibration, vehicle modification signal splitting, fleet diagnostic equipment wiring, R&D prototype automotive circuit testing |
| Specific Shipping Cost |
Please Contact Us |
This breakout harness has wide practical value across multiple scenarios, including Toyota vehicle fault code scanning, ECU data writing, automotive electronic bench circuit simulation, vehicle refitting signal tapping and laboratory prototype circuit verification. As a functional expansion version of standard OBD extension lines, it balances compatibility with Toyota vehicle systems and flexible expandability, and we support full parameter customization on the basis of this finished product to create exclusive custom automotive wire harness for special diagnostic equipment brands.