CARWATCH
Brand Specific Diagnosis

P0122 Error on Honda

What it means and how to fix it

🚨 Fault Description (P0122)

The DTC code P0122 in a Honda vehicle is a sign that the onboard computer has registered the following anomaly:

"Throttle Position Sensor/Switch A Circuit Low Input"

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 Honda (year, engine type, etc).

Other frequent faults detected in Honda:

P0420 P0300 P0171 P0401 P0141 P0430 P0113 P0455 P0301 P0302 P0303 P0304 P0135 P0442 P0172

Get an Exact AI Diagnosis for your Honda

Instead of changing parts blindly, use the CarWatch AI assistant. Scan your Honda's sensors in real-time and find out the root cause of the P0122 fault before going to the shop.

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Recommended OBD2 Scanner for Honda

To clear the engine light and read the P0122 code from your phone, you need an OBD2 adapter compatible with the Honda ECU.

🛒 View Compatible Scanner on Amazon
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