Bosch's 3970-01 OBD II cable is designed specifically for use with Bosch ADS 625 diagnostic scan tools to connect the wireless VCI (Vehicle Connection Interface) to vehicle DLC (Data Link Connector). Convenient built-in LED light on the DLC connector end provides assistance in finding vehicle DLC in poor lighting conditions. The scan tool connector end features battery voltage readings taken directly from OBD pin 16, ensuring an accurate scan reading. Indicator displays actual battery voltage, 'LO' if below 11.8 volts, or 'HI' of above 15.5 volts, indicating battery system needs attention. 5 ft length.