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P2117 — Throttlepedal Position Sensor F Minimum Stop Performance

Manufacturer-specificPowertrain (engine & transmission)

P2117 indicates the powertrain control module (PCM) has detected the throttle pedal position sensor (TPPS) signal is not reaching the expected minimum voltage at closed throttle. This typically means the sensor or its circuit is not providing a valid 'idle' reading, which can affect throttle response and idle control.

Symptoms

What causes it — most likely first

1. Faulty throttle pedal position sensor

The TPPS may be worn, contaminated, or internally damaged, preventing it from outputting the correct minimum voltage when the pedal is released.

2. Damaged or corroded wiring or connectors

Broken, shorted, or corroded wires between the TPPS and PCM can cause signal loss or incorrect voltage readings, especially at the minimum stop position.

3. Misadjusted or misaligned throttle pedal assembly

If the pedal mechanism is bent, worn, or improperly adjusted, it may not fully return to the minimum stop position, causing the sensor to read incorrectly.

4. Poor electrical ground or power supply to the sensor

Insufficient voltage or ground supply to the TPPS can result in erratic or incorrect signal output, including failure to reach the minimum stop voltage.

5. Faulty PCM (rare)

While uncommon, a malfunctioning PCM could misinterpret the TPPS signal or fail to provide proper reference voltage. This is a last-resort cause after all others are ruled out.

How it's diagnosed

  1. Retrieve and document all stored trouble codes and freeze-frame data using an OBD-II scan tool.
  2. Inspect the throttle pedal position sensor and its wiring harness for visible damage, corrosion, or loose connections. Check for proper pedal return and mechanical free play.
  3. Using a digital multimeter, verify the TPPS output voltage at closed throttle (pedal fully released). Compare readings to manufacturer specifications for minimum stop voltage.
  4. Test the sensor’s power supply and ground circuits to ensure proper voltage and continuity. Repair or replace any damaged wiring or connectors as needed.
  5. If the sensor and wiring check out, perform a TPPS relearn or calibration procedure per manufacturer guidelines to ensure proper alignment with the minimum stop position.
  6. If all other causes are eliminated, consider PCM testing or replacement, though this is rarely the root cause for P2117.

Code facts & related codes

SystemPowertrain (engine & transmission)
StandardizationManufacturer-specific (P1/B1/C1/U1)
Related codesP2110 — Throttle Actuator Control System ForP2111 — Throttle Actuator Control System StuP2112 — Throttle Actuator Control System StuP2113 — Throttlepedal Position Sensor B MinimuP2114 — Throttlepedal Position Sensor C MinimuP2115 — Throttlepedal Position Sensor D Minimu

Frequently asked

Is the throttle pedal position sensor the same as the throttle body position sensor?

No. The throttle pedal position sensor (TPPS) is located on the accelerator pedal and measures driver input. The throttle body position sensor monitors the actual position of the throttle plate. They serve different functions but work together in electronic throttle control systems.

Can I drive with a P2117 code?

Driving with P2117 may result in reduced engine power, poor throttle response, or stalling, especially at idle. It is not recommended for extended periods, as it can lead to unsafe driving conditions or further damage to the throttle control system.

Is the PCM usually the cause of P2117?

No. The PCM is rarely the cause of P2117. Most cases stem from a faulty TPPS, wiring issues, or mechanical problems with the pedal assembly. PCM replacement should only be considered after all other potential causes have been thoroughly ruled out.

Why does the code mention 'minimum stop performance'?

The 'minimum stop' refers to the closed-throttle (idle) position of the accelerator pedal. The PCM expects a specific voltage signal from the TPPS when the pedal is fully released. If the signal does not match this expected value, the PCM sets P2117 to indicate the sensor is not performing correctly at its minimum stop position.