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P1223moderate severityPowertrain

Throttle Position Sensor (Sub) Circuit Malfunction

on 2014 Mitsubishi Outlander 2.4L I4 · FWD

What this code means

The secondary throttle position sensor circuit is reading out of range or has an electrical fault. Similar to generic OBD codes P0220-P0229.

Symptoms

  • Check engine light on
  • Poor throttle response
  • Erratic acceleration

Common causes

  • Faulty sub throttle position sensor
  • Wiring or connector fault
  • Corroded sensor contacts
  • Failed PCM input circuit

Diagnostic steps

  1. Scan for stored codes
  2. Check TPS sub sensor voltage
  3. Inspect wiring and connectors
  4. Replace sensor if out of spec

Other Powertrain codes on this vehicle

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