P0221 on Ford
Throttle/Pedal Position Sensor/Switch B Circuit Range/Performance
P0221 on Ford vehicles indicates throttle/pedal position sensor/switch b circuit range/performance. Au7o has documented this code across 1 Ford model — most commonly on Transit Connect. This code means the second throttle or accelerator pedal position sensor (circuit B) is sending a signal that is out of the expected range or does not track properly with the other sensor. Modern drive-by-wire systems use redundant sensors, and the computer compares them for agreement. When sensor B's voltage is implausible or inconsistent, this code sets. It can cause hesitation, surging, reduced power, or a forced limp mode for safety. Typical repair costs on Ford range from $140 to $900, depending on the specific model and root cause.
Common Causes of P0221
- •Faulty throttle position sensor (sensor B)
- •Faulty accelerator pedal position sensor
- •Dirty or worn throttle body
- •Wiring or connector problems (corrosion, chafing)
- •Poor ground or reference voltage to the sensor
- •Intermittent open or short in the signal circuit
- •Faulty PCM/ECM (rare)
P0221 on Ford by Model
Ford Transit Connect(1 issue)
- Throttle Body/ETC Fault Causing Limp Mode (Reduced Engine Power)2014-2021
Owners report sudden reduced power, poor throttle response, and limp-home behavior due to electronic throttle body contamination/wear or throttle actuator control faults. The issue can be intermittent and may clear after a key cycle, then recur, which is a common pattern in NHTSA complaints and owner reports. It often sets throttle/ETC-related DTCs and can be triggered by carbon buildup or failing throttle position sensing.
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View P0221 across all makes →Frequently Asked Questions
What does P0221 mean on Ford?▼
P0221 stands for "Throttle/Pedal Position Sensor/Switch B Circuit Range/Performance." This code means the second throttle or accelerator pedal position sensor (circuit B) is sending a signal that is out of the expected range or does not track properly with the other sensor. Modern drive-by-wire systems use redundant sensors, and the computer compares them for agreement. When sensor B's voltage is implausible or inconsistent, this code sets. It can cause hesitation, surging, reduced power, or a forced limp mode for safety. On Ford specifically, this code is documented across 1 model.
What causes P0221 on Ford vehicles?▼
Common causes on Ford: Faulty throttle position sensor (sensor B), Faulty accelerator pedal position sensor, Dirty or worn throttle body, Wiring or connector problems (corrosion, chafing), Poor ground or reference voltage to the sensor. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0221 on a Ford?▼
Repair costs on Ford range from $140 to $900, depending on the specific model and root cause.
Which Ford models have P0221 documented?▼
Au7o has documented P0221 on 1 Ford model: Transit Connect.