Code Definition

P0226 — Throttle/Pedal Position Sensor/Switch C Circuit Range/Performance

System: Powertrain  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About P0226

P0226 is a generic (obd-ii standard) powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P0226 is stored, the module has detected a plausibility fault — the measured value is in the electrical range but is not consistent with expected operating behaviour; and a sensor-related fault — the reported value from the named sensor is out of spec.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

Because P0226 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The P0226 fault code is set when the Engine Control Module (ECM) detects that the range or performance of the Throttle Position Sensor (TPS) or Pedal Position Sensor (PPS), specifically in the 'C' circuit, is out of the expected range or not performing as intended. This sensor is essential for providing accurate information about the position of the throttle or accelerator pedal, which the ECM uses to regulate air intake and fuel delivery for optimal engine performance. Issues leading to this code can include a sensor that is not responding correctly, calibration problems, wiring or connector ...

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