Autel MaxiHVAC AC909D A/C Diagnostic System | US Version

Autel AC909D A/C & Thermal Management Diagnostics The Autel MaxiHVAC AC909D combines vehicle diagnostic data with physical A/C measurements to help technicians investigate cooling complaints and evaluate system performance. This listing is for the North American AC909D package in the MaxiHVAC AC909 product line. By bringing refrigerant-circuit measurements and supported vehicle data together, the system helps technicians assess faults before deciding which components need further testing or replacement. Intelligent Guided Diagnostic Workflow Illustrated, step-by-step instructions guide technicians through equipment connections and diagnostic procedures. Vehicle-specific A/C information helps identify component specifications and locations on supported applications. A graphical analysis screen brings together live pressures, temperatures, humidity and supported OBD sensor data. Technicians can compare related readings to better understand how the refrigerant circuit and electronic controls interact. Nitrogen Leak Testing & Micron-Level Vacuum Verification Guided nitrogen testing supports system tightness checks before evacuation and charging. The North American AC909D package includes a NAVAC Bluetooth vacuum pump and digital micron gauge. Live micron-level readings stream directly to the tablet. Automated decay testing helps technicians evaluate vacuum performance and moisture removal using measured data rather than evacuation time alone. Compressor Testing & Component Analysis On supported applications, variable-displacement compressors can be evaluated through OBD bi-directional commands or direct compressor-control testing while monitoring low- and high-side pressures. Dedicated diagnostic procedures also address evaporators, condensers, metering devices and system blockages. The manifold's backlit sight glass supports visual refrigerant inspection for contamination or debris that may require further investigation. Connected A/C Measurement Tools The modular system combines a diagnostic tablet and MaxiFlash VCI with a four-port manifold, refrigerant scale, compressor box and wireless measurement accessories. Bluetooth temperature clamps measure refrigerant-line temperatures, while temperature and humidity probes provide ambient, cabin and vent readings. These measurements help technicians relate physical system conditions to the vehicle data shown on the tablet. Built for Modern Vehicle Thermal Management The AC909D is designed for electronically controlled A/C systems and supported hybrid, EV and heat-pump applications. Available functions depend on the vehicle, application and installed software. Before ordering, email support@autel-us.com with the vehicle year, make, model, refrigerant type, existing A/C equipment and the work you need to perform. We can help check the package and application before purchase.