OBD2 Scanner Car Diagnostic Tool Check Engine Light Code Reader I/M Battery Test
🚗 Core Diagnostic Functions. Comprehensive Diagnostic Coverage : Combines core OBDII functions with battery monitoring and O2 sensor testing for complete vehicle health checks. Full OBDII Diagnosis : Supports all 9 OBDII test modes, including reading/clearing engine fault codes, turning off the check engine light, and querying DTC definitions.