P2115: Throttle/Pedal Position Sensor D Minimum Stop Performance

Here the controller judges position signal D at the released (minimum) end of travel. On Ford and GM drive-by-wire systems D is the first accelerator pedal sensor, so the code means the pedal's idle reading is outside the expected window, for example because the pedal does not return fully or its sensor track has shifted. No manufacturer documents P2115 publicly; Ford and GM publish only circuit and correlation codes for D (P2120-P2123, P2138). P2116 and P2117 are the E and F counterparts, P2109 and P2113 refer to A and B. The engine may not return to idle cleanly, and the ECU may limit pedal response.

Symptoms

• Warning lamp on
• Engine does not drop to normal idle when the pedal is released
• Dull or limited pedal response

Most likely causes

• Pedal blocked by floor mat or weak return spring
• Worn pedal sensor track D at the idle end
• Aftermarket pedal tuning module or wrong pedal part
• Corroded or loose pedal connector

What to check, in order

Start with the simplest. You can tick off each step.

1. Check the pedal and throttle connectors
2. Compare the reading with other engine data while varying the engine speed.
3. Use live data to confirm that both sensors rise smoothly and consistently
4. Clean the throttle if it has carbon buildup
5. Run the relearn procedure with the scanner if the manufacturer requires it
6. Replace the part identified by the diagnosis

Good to know

• Repair difficulty: easy
• It can trigger limp mode.
• It affects emissions.

What each character of P2115 means

• P: Powertrain: engine and transmission
• 2: Generic code: same on every make
• 1: Air and fuel
• 15: Specific fault in that system

Frequently asked questions

Can I keep driving with code P2115?

Be careful: the car may suddenly lose power. If it goes into limp mode, get off the highway and calmly make your way to a repair shop.

What causes code P2115?

The most common causes are: pedal blocked by floor mat or weak return spring; worn pedal sensor track D at the idle end; aftermarket pedal tuning module or wrong pedal part.

Related codes

• P2116Throttle/Pedal Position Sensor E Minimum Stop Performance
• P2117Throttle/Pedal Position Sensor F Minimum Stop Performance
• P2109Throttle/Pedal Position Sensor A Minimum Stop Performance
• P2120Throttle/Pedal Position Sensor/Switch D Circuit
• P2122Throttle/Pedal Position Sensor/Switch D Circuit Low
• P2138Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation

Sources

• law.cornell.edu: 13 CCR 1968.2
• newtonnet.co.uk: fordobd2012
• gsi.ext.gm.com: 07 GRP12 All Engines
• patents.google.com: en

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.