The DTC code P0242 in a Hyundai vehicle is a sign that the onboard computer has registered the following anomaly:
"Turbocharger Boost Sensor B Circuit Low"
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 Hyundai (year, engine type, etc).
Instead of changing parts blindly, use the CarWatch AI assistant. Scan your Hyundai's sensors in real-time and find out the root cause of the P0242 fault before going to the shop.
👉 Diagnose my Hyundai for FreeTo clear the engine light and read the P0242 code from your phone, you need an OBD2 adapter compatible with the Hyundai ECU.
🛒 View Compatible Scanner on Amazon