AC Manifold Gauge Set.Residential and Auto Air Conditioner Diagnostic Test and Recharge.4 Way HVAC R134a R404a R410a Freon Charging Tool Kit, with Hoses Couplers Can Taps Adapter Case. An automotive repair tools adapter cable is a bridge that connects a vehicle’s diagnostic port to an external diagnostic tool or scanner, enabling communication with the vehicle’s internal computer system (ECU). These cables allow mechanics and car owners to retrieve and clear error codes, monitor real-time data, and perform various diagnostic and maintenance functions
