P2123critical severityPowertrain

Throttle/Pedal Position Sensor/Switch D Circuit High

on 2006 Mazda Tribute 2.3L I4 · FWD

What this code means

High voltage from accelerator pedal position sensor D.

Symptoms

  • Limp mode
  • Unintended acceleration
  • Check engine light

Common causes

  • Open ground circuit
  • Short to voltage
  • Failed sensor

Diagnostic steps

  1. Measure voltage at APP sensor D
  2. Check for opens in ground
  3. Inspect wiring

Repair notes

Replace pedal assembly or repair wiring.

Other Powertrain codes on this vehicle

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