If the Check Engine light of your Toyota is on and the scanner shows the P0104 code, it means the ECU has detected the following problem:
"Mass or Volume Air Flow Circuit Intermittent"
Although this is a standardized OBD2 code, the symptoms and the location of the faulty sensor can vary depending on the exact model of your Toyota (year, engine type, etc).
With the CarWatch app you can connect a Bluetooth OBD2 scanner and let our AI analyze the P0104 code by crossing it with your vehicle's history and real-time telemetry.
👉 Diagnose my Toyota for FreeTo clear the engine light and read the P0104 code from your phone, you need an OBD2 adapter compatible with the Toyota ECU.
🛒 View Compatible Scanner on Amazon