OBD2 16-Pin Harness (SAE J1962)
Product Overview
This OBD2 16-pin harness is a custom cable assembly that connects a vehicle's SAE J1962 diagnostic port to a telematics unit, an ELD device or a diagnostic tool. Every assembly is built to order: connector gender, cable length, pinout, boot shape and overmolding are fixed on the drawing before production.
The range covers straight and right-angle 16-pin plugs, extension and splitter (Y and T) harnesses, DB9 and RJ45 breakouts, and open-end pigtails for panel mounting. Cactus Electronics has produced OBD2 assemblies since 2009 for ELD and fleet-telematics hardware manufacturers; the assemblies are made to IPC/WHMA-A-620 and 100 % electrically tested before shipment.
Specifications
The part numbers below are existing builds and can be re-configured. Full drawings, tolerances and the current specification for each item are issued with the quotation.
Material & Rating
- Contacts — brass, gold-plated or tin-plated, selected by mating-cycle requirement
- Housing — PA66 or ABS 16-pin J1962 plug, straight or right-angle, with molded strain relief
- Conductor — stranded copper 20–18 AWG, PVC or XLPE insulation, optional overall shield with drain wire
- Jacket and overmold — PVC or TPU, black or custom colour
- Temperature — 80 °C with PVC insulation, 105 °C with XLPE or TPE; the rated range is stated on each drawing
- Voltage — 12 V and 24 V vehicle systems
- Ingress protection — sealed overmolded versions specified per drawing and verified on the sample
Certification
Cactus Electronics is certified to ISO 9001, IATF 16949 and UL and manufactures to the IPC/WHMA-A-620 workmanship standard. Raw materials comply with RoHS. Every assembly passes 100 % electrical testing - continuity, insulation resistance and withstand voltage - before packing, and the QC-to-production personnel ratio is 1:3.
Application
OBD2 16-pin assemblies are used wherever a device has to read vehicle data through the standard diagnostic socket.
- ELD and electronic logging devices connected to the OBD2 port of light and heavy trucks
- Fleet telematics and GPS tracking units with plug-and-play installation
- Diagnostic and scan tools used in service workshops
- Insurance telematics and driver-behaviour monitoring
- Data loggers and CAN gateways installed after market
Custom Options
- Connector type and gender: 16-pin male, female, right-angle or panel-mount
- Pinout, cable length from 0.3 m, wire gauge, jacket colour and jacket material
- Splitter, Y and T configurations; DB9, RJ45 or open-end termination
- Overmold shape and colour, laser marking of part number or customer logo
- Samples in 3–7 working days; MOQ confirmed per project
- Customer carton marking and DDP delivery on request
FAQ
What is the operating temperature rating of this harness?
Standard PVC-insulated assemblies are rated to 80 °C; XLPE or TPE insulation raises the rating to 105 °C. For engine-bay or near-exhaust routing we quote higher-temperature insulation and sleeving. The exact operating range for a part number is stated on its drawing and confirmed in the sample test report.
Is this overmolded harness waterproof?
Overmolded versions seal the connector-to-cable junction with a molded body, so a mated pair is protected against water and dust; the ingress protection level (typically IP67 for a mated pair) is specified on the drawing and verified during sample validation. Non-overmolded assemblies can be supplied with heat-shrink or grommet sealing instead.
Can I customize the pinout and connector type?
Yes. Pinout, connector series and gender, cable length, wire gauge, jacket colour and overmold shape are all customer-defined. Send a drawing, a sample, or a pinout table and we return a 2D/3D drawing prepared to IPC/WHMA-A-620 for approval before tooling.
What is your MOQ for custom ELD telematics cable?
MOQ is confirmed per project and depends on harness complexity, connector cost and tooling. Prototype and pilot batches are accepted before mass production, so a new ELD programme can start with sample quantities.
What testing standards do you apply for truck harness?
Production follows IPC/WHMA-A-620. Every assembly is 100 % electrically tested for continuity, insulation resistance and withstand voltage; the in-house lab adds temperature and humidity cycling, salt spray, connector insertion and withdrawal force, and cable bending tests. Inspection records are kept in the ERP system.
Is this cable compatible with ELD trackers for heavy trucks?
Yes. The range covers the interfaces used by ELD and fleet-tracking units on heavy trucks: J1939 9-pin Type I and Type II, J1708 6-pin, RP1226 14-pin and OBD2 16-pin. Existing builds for CalAmp (LMU3640, jPOD 5C992-2) and Geotab GO devices are listed under Specifications. Tell us the tracker model and we confirm the mating connector.
Related pages: fleet telematics and ELD harness, OBD2 connectors, custom harness flow, and request a quotation.

