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P2122 — Throttle/Pedal Position Sensor D Circuit Low Input

Accelerator pedal position sensor D reading too low.

Severity: HighRepair: $100-$400Difficulty: Medium

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Common symptoms of P2122

Common causes of P2122

Repair cost & difficulty

Typical cost to fix P2122: $100-$400 · Difficulty: Medium

Pro tip: Pedal position sensor is part of the accelerator pedal assembly. Entire assembly usually needs replacement.

Vehicles commonly affected

All makes

Related trouble codes

P2123P2138

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ScanFixAI is a diagnostic aid, not a substitute for professional repair. Cost estimates are typical ranges and vary by vehicle and region.