• The Autel AL539B, an ultimate automotive analyser that combine a multimeter, scope, starter test and EOBD code reader. • Starter test function allows testing of the battery and charging system. • Fast and easy access to any vehicle’s EOBD diagnostic codes, establishing cause of illuminated engine check light (MIL). • Features built-in data library with lookup functions. • Clear, concise DTC generic definitions displayed on screen. • CAN Enabled tool retrieves generic P0, P2 and P3 and U0 codes for engine emissions and manufacturer specific P1, P3 and U1 codes. • Reads and displays live ECU/PCM data stream, plotting functions graphically and stores freeze-frame data. • Live display of O2 sensor data which can be stored and played back. • Can be updated via web-based downloads and will link with a PC. • Patented One-Click I/M Readiness button to eliminate drive cycle guesswork. • Supports new extended sensor list (SAE J1979 2007), trouble-shooter code tips and repair informat