What TOPDON AL500 code reader can do is not only Read / Clear Code as normal code readers perform but also include advanced O2 sensor test, On-board Monitor System Test, EVAP Test. From the failing oxygen sensor to the EGR valve problem, you can quickly identify what is the root cause of the illuminated check engine light.

• O2 Sensor Test

Check O2 sensor status and immediately replace the detected faulty O2 sensor, to maintain fuel economic effectiveness, and avoid further damages on the catalytic converter and spark plugs.

• On-Board Monitoring

Access to the results for on-board diagnostic monitoring tests of specific components/systems that are either continuously monitored (e.g. misfire monitoring) or non-continuously monitored (e.g. catalyst system).

• EVAP Test

Perform the EVAP test to close the canister ventilation solenoid, thus testing the sealing of the evaporative system.

Why is TOPDON AL500 OBD2 Scanner diagnosis so accurate and reliable?

When you are experiencing drivability issues, reduced fuel economy, have a check engine light illuminated, this OBD2 scanner can be helpful. Based on freeze frame, live data, and VIN info, TOPDON AL500 points you in the right direction faster than just going on the code alone.

• Live Data

The live data function is for checking the operation or status of various sensors, circuits, and switches, such as absolute throttle position, air flow rate from the MAF, engine coolant temperature, engine rpm, O2 sensor output voltage, commanded EGR.

• Freeze Frame

Freeze frame data is a snapshot of when the code occurs of the specific sensor PIDs. From this information, you can replicate the problem on a test drive faster.

• Vehicle Information

Retrieve vehicle’s Vehicle identification number, calibration ID, and calibration verification number, to know more about your vehicle, such as vehicle history information, vehicle model, etc.