lydesor KKL 409 USB OBD2 Diagnostic Cable for FiatEcuScan — FTDI FT232RL chip, 4‑position switch

The lydesor KKL 409 FiatEcuScan OBD2 diagnostic cable is a USB interface with an authentic FTDI FT232RL chip that lets you read and clear ECU, ABS, airbag and ESP fault codes on many European cars from 1996 onward.

This compact KKL 409.1 adapter pairs with FiatEcuScan and VAG-COM style software to provide wired diagnostics for older V-vv, Au-di, Se-at, Sk-oda, Fi-at, Al-fa Romeo and Lan-cia vehicles. It connects to a Windows PC by USB and uses a four-position switch to select Engine, Airbag, ABS or ESP modules so you can quickly access specific systems without changing cables. The cable ships with diagnostic software on CD and includes troubleshooting guidance if the disc is damaged or your computer lacks a CD drive.

How does the KKL 409 adapter connect to my car and computer?

The cable plugs into a vehicle's OBD2 port and the other end into a PC's USB port using a built-in FTDI FT232RL chipset for stable communications. A 4-way hardware switch selects which ECU protocol to address, avoiding software reconfiguration each time.

• Standard OBD2 male connector for vehicle port access
• USB-A connection for Windows XP/Vista/7 compatibility
• Original FTDI FT232RL chip for reliable data transfer
• 4-position switch to target Engine, Airbag, ABS or ESP

Which vehicles and software does this KKL cable support?

This adapter is intended for many European marques produced from about 1996 and works with FiatEcuScan and VAG-COM style applications. It is aimed at legacy systems—official compatibility recommends Windows XP, Vista and Windows 7 environments.

• Compatible brands: V-vv, Au-di, Se-at, Sk-oda, Fi-at, Al-fa Romeo, Lan-cia
• Designed for vehicles manufactured from 1996 onward
• Suggested operating systems: Windows XP, Vista, Windows 7 (not supporting Windows 8/10)
• Works with FiatEcuScan and many KKL/VAG diagnostic tools

What diagnostic functions can I perform with the KKL 409.1 cable?

Using the switch positions and compatible software, you can read and clear fault codes across major control units. The cable provides basic fault-finding and resets for engine management, airbags, ABS, and ESP systems commonly required during service or DIY troubleshooting.

• Position 1 — read/clear Engine ECU fault codes
• Position 2 — read/clear Airbag (SRS) fault codes
• Position 3 — read/clear ABS fault codes
• Position 4 — read/clear ESP/stability system faults

What should I know about installation and the software CD?

The package normally includes a software CD, but modern PCs may lack an optical drive. If the disc arrives damaged or you cannot use a CD, contact the seller for a download link. Drivers for the FTDI chip need to be installed on the recommended Windows versions to ensure proper function.

• Driver and software installation required for FT232RL chipset
• Contact seller for MEGA download link if CD is damaged or unreadable
• Not designed for Windows 8 or 10; use recommended OS for best results
• Four-way switch reduces the need to reconfigure software between tests

Who is this for? The lydesor KKL 409 FiatEcuScan OBD2 adapter is aimed at home mechanics, independent workshops and enthusiasts who service older European vehicles and need a straightforward, wired diagnostic interface. It is particularly useful for users who work within legacy Windows environments, want reliable FTDI-based communications, and prefer a single cable that targets multiple control units via a hardware switch. If you require coverage for the latest cars, modern CAN-only systems, or support for Windows 8/10, consider a newer multi-protocol interface instead.