P0220
PowertrainThrottle Pedalhigh severityThrottle/Pedal Position Sensor/Switch B Circuit
What P0220 Means
Malfunction in the secondary throttle position sensor or accelerator pedal position sensor.
Symptoms
- Check Engine Light
- Limp mode
- Reduced power
- Poor throttle response
Common Causes
- Faulty TPS B sensor
- Wiring damage
- Throttle body failure
- Pedal assembly failure
Diagnostic Steps
- Test TPS B voltage
- Compare TPS A and B signals
- Inspect wiring
- Test pedal position sensor
Where to start: Replace TPS or throttle body/pedal assembly.
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