Transformer adapter OBD2 (24V/12V)
Warranty directly via AsTools
Warranty directly via AsTools
We handle warranty cases ourselves, quickly and without involving the manufacturer. Thanks to our own parts inventory and technical expertise, we can usually assist you immediately. Only in exceptional cases do we still send the product to the supplier.
2 years warranty on all products
2 years warranty on all products
All our products come with a 2-year factory warranty. This ensures you long-lasting quality and service.
Easy returns
Easy returns
You can easily request your return through your account. We will send you the return label by email. Return shipping costs are your responsibility.
Professional customer service
Professional customer service
Our experts are ready to help you quickly and professionally, both online and in our physical store. Questions? Feel free to contact us!
The universal Transformer Adapter OBD2 (24V/12V) is an inline voltage converter specifically designed for vehicle diagnostics on heavy commercial vehicles. This component acts as a safe hardware bridge between a 24V vehicle network (such as trucks, buses, and construction machinery) and standard 12V diagnostic equipment. The Adapter reduces the supply voltage at the OBD2 port (Pin 16) from 24 volts to a stable 12 volts without affecting the data signals of communication protocols like CAN or K-line. This structurally prevents sensitive 12V scanners and interfaces from being damaged by overvoltage when connected to heavy vehicle networks.
Once the Adapter cable is plugged into the J1962 diagnostic port, the integrated step-down circuit activates to regulate the voltage. The device provides immediate visual feedback via the built-in digital LED displays, continuously and in real-time showing both the current output voltage (in red) and current draw (in blue). This allows the diagnostic technician to monitor the actual current consumption of the connected diagnostic device and verify that the supplied voltage remains within the safe tolerances of the equipment. Additionally, the external module features a robust housing with rubber bumpers to protect the internal electronics from physical impact in an industrial workshop environment.
ADVANTAGES
KEY POINTS
Applications and functionalities
This Adapter cable is designed for workshops working on mixed vehicle fleets and offers the following core features:
- Voltage reduction (Step-down): Converts the incoming 24V power from pin 16 of the vehicle connector to a safe 12V output. This makes it possible to use standard passenger car diagnostic equipment on trucks and heavy machinery.
- Pass-through communication: Allows all data lines (such as CAN-High, CAN-Low, and K-line) to pass through unhindered and unchanged. The Adapter only intervenes on the power and ground lines.
- Live circuit monitoring: Allows the technician to verify during the diagnostic process whether the vehicle’s OBD port provides stable power, which is crucial when troubleshooting communication errors or ECU issues.
Special features and capabilities
The integrated module in the wiring contains additional hardware components to enhance diagnostic reliability:
- Digital Voltmeter (Red LED): Continuously measures the reduced output voltage sent to the diagnostic device, making voltage drops immediately visible.
- Digital Ammeter (Blue LED): Displays the current power consumption of the connected diagnostic device or interface in amperes. This helps identify unexpectedly high current draw caused by a fault in the tester or cable.
- Integrated shock protection: The transformer housing is finished with shock-absorbing caps, protecting the sensitive measurement electronics from drops on the workshop floor.
Package Contents
- 1x Transformer Adapter OBD2 (24V/12V) with display
Technical specifications
| Specification | Description |
|---|---|
| Product category | Diagnostic cables & Adapters |
| Function | DC Step-down converter (24V to 12V) |
| Vehicle side connection | OBD2 / J1962 (16-pin, Male) |
| Equipment side connection | OBD2 / J1962 (16-pin, Female) |
| Voltage display | Digital LED (Red) |
| Current display | Digital LED (Blue) |
| Data signal compatibility | Pass-through (unhindered transmission) |
