Functional All Modes of OBDII Diagnostics This tool works on MOST OBDII\/CAN protocol compliant 1996 US-Based, 2000 EU-Based and Asian cars. It can check all engine related trouble codes from Vehicle ECU (Electronic Control Unit) via check engine light, monitor readiness test, view live data, view freeze frame data, read and clear codes etc, which is to say, it gets the complete 10 modes of OBDII test for technicians to diagnose the trouble fast and accurately as follows: Mode 01: Request current power train diagnostic data. Mode 02: Request freeze frame information. Mode 03: Request emissions-related diagnostic trouble codes. Mode 04: Clear\/reset emissions-related diagnostic information. Mode 05: Request oxygen sensor monitoring test results. Mode 06: Request on-board monitoring test results for specific monitored systems. Mode 07: Request emission-related diagnostic trouble codes detected during current or last completed driving cycle. Mode 08: Request control of on-board system, test or component. Mode 09: Request vehicle information. Support Car Models for OBDII diagnostic function: (Note: CR319 only Support 12V Gasoline\u0026 , Does not support 24V Truck ) CR319 Support protocols car: 1. SAE J1850 PWM(41.6Kbaud) 2. SAE J1850 VPW(10.4Kbaud) 3. ISO9141-2(5 baud init,10.4Kbaud) 4. ISO14230-4 KWP(5 baud init,10.4 Kbaud) 5. ISO14230-4 KWP(fast init,10.4 Kbaud) 6. ISO15765-4 CAN(11bit ID,500 Kbaud) 7. ISO15765-4 CAN(29bit ID,500 Kbaud) 8. ISO15765-4 CAN(11bit ID,250 Kbaud) 9. ISO15765-4 CAN(29bit ID,250 Kbaud) Colour:Black Material:ABS Package Contents: 1 * LAUNCH CR319 Car Code Reader Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.