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P2116 Throttle Actuator Control
Pedal Position Sensor B Minimum Stop Performance
P2116 means the accelerator pedal position sensor B did not return to its expected minimum voltage, so the ECM cannot verify the resting pedal position from the second sensor element.
🚗 Not recommended. A faulty pedal sensor can force limp mode.
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🎯 Top Causes, Ranked by Likelihood
#1 Failed accelerator pedal position sensor $100-$400
A worn pedal sensor element is the most common cause.
#2 Wiring or connector fault at the pedal $50-$300
Corroded or damaged wiring skews the B signal.
#3 Sticking pedal assembly $50-$300
A binding pedal keeps the sensor off its minimum stop.
#4 Poor ground or reference voltage $50-$300
A bad reference or ground shifts the reading.
🩺 Common Symptoms Reduced power / limp mode Check engine light Poor throttle response Erratic idle Hesitation 💰 Repair Cost: DIY vs Shop
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🔧 How to Diagnose P2116 1 Read live data for pedal sensor B at rest
2 Inspect the pedal connector and wiring
3 Test the reference and ground circuits
4 Replace the pedal position sensor if out of range
❓ Frequently Asked Questions Can I drive with a P2116 code?
Avoid it. It can trigger limp mode and unreliable throttle response.
How much does it cost to fix P2116?
A pedal position sensor replacement typically runs $150-$600 at a shop.
What causes P2116?
Usually a failed pedal sensor or wiring fault keeping sensor B off its minimum stop.
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