P0222 on Chevrolet
Throttle/Pedal Position Sensor/Switch B Circuit Low Input
P0222 on Chevrolet vehicles indicates throttle/pedal position sensor/switch b circuit low input. Au7o has documented this code across 1 Chevrolet model — most commonly on Impala. The PCM detected that the 'B' throttle/pedal position sensor signal voltage is below the expected minimum (short to ground or open). The implausibly low reading typically triggers reduced-power protection. Typical repair costs on Chevrolet range from $100 to $450, depending on the specific model and root cause.
Common Causes of P0222
- •Short to ground in the B signal circuit
- •Open reference (5V) supply to the sensor
- •Faulty throttle/pedal position sensor (B)
- •Corroded or loose connector
- •PCM fault
P0222 on Chevrolet by Model
Chevrolet Impala(1 issue)
- Reduced Engine Power / Service StabiliTrak from Throttle Body Failure2006-2016
Impalas frequently throw a cluster of warnings at once — 'Engine Power Reduced,' 'Service StabiliTrak,' and 'Service Traction Control' — that are usually one underlying drive-by-wire fault rather than three separate failures. The most common root cause is the electronic throttle body actuator (or the dual throttle-position sensors inside it) going out of range; the accelerator pedal position sensors can also disagree. Because the ECM cross-checks these dual sensors, any disagreement forces the car into limp-home mode with drastically reduced power. Carbon buildup on the throttle plate aggravates it, especially in cold weather.
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View P0222 across all makes →Frequently Asked Questions
What does P0222 mean on Chevrolet?▼
P0222 stands for "Throttle/Pedal Position Sensor/Switch B Circuit Low Input." The PCM detected that the 'B' throttle/pedal position sensor signal voltage is below the expected minimum (short to ground or open). The implausibly low reading typically triggers reduced-power protection. On Chevrolet specifically, this code is documented across 1 model.
What causes P0222 on Chevrolet vehicles?▼
Common causes on Chevrolet: Short to ground in the B signal circuit, Open reference (5V) supply to the sensor, Faulty throttle/pedal position sensor (B), Corroded or loose connector, PCM fault. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0222 on a Chevrolet?▼
Repair costs on Chevrolet range from $100 to $450, depending on the specific model and root cause.
Which Chevrolet models have P0222 documented?▼
Au7o has documented P0222 on 1 Chevrolet model: Impala.