Obd2 diagnostic cable with FTDI chip & 4-way switch VAG USBVAG KKL ForVAG USB interface Product features: Suitable for Windows XP, 98, ME, 98, Vista + Windows 7 drivers Compatible with diagnostic software package may include: forECU Scan for vag Cable used to include a 4 way to switch to different ECUs access: Position 1 = engine ECU (read / clear engine failure) Position 2 = airbag ECU (read/remove airbag failure) Position 3 ECU = ABS (read / erase fault code) Position 4 = ESP ECU (read / clear fixed fault) How to use: 1. connect the plug cable to the computer / laptop 2. install the cable driver (available on the CD) 3. Make any additional set of diagnostic software 4.For the diagnosis of VAG set the switch on the ECU 5. the OBD connector cable plug and connected with the car 6. diagnostic software products used for connection Return Policy All of our items come with a 30-day free return policy. If you need to return, please contact us, let us know the detailed problem and send us some pictures for confirmation. We reserve the right to refuse any returns for objective reasons. Shipping Policy All of our items are shipped free with tracking numbers. Orders will be shipped within 3 working days upon receipt of payment. Most orders will be shipped within 1 working day. In most cases, shipping takes 8-12 working days.