OBD-II Code
P0222
Severity
Not yet reviewed
Nobody on our side has assessed this code yet, so we are not going to guess at how serious it is.
Can you drive it
We cannot say
Treat it as unknown until a shop reads it with live data. If the check-engine light is FLASHING, stop driving as soon as it is safe to — that means an active misfire, whatever the code.
Indicative cost (USD)
$90–$650
From this code's diagnostic notes. Varies by vehicle, diagnosis, parts, and local labor. This is not a repair quote.
P0222 means the throttle/pedal position sensor 'B' signal voltage dropped below the calibrated low threshold, typically under 0.2 volts on a 0-5V circuit.
How a shop works this
Work from evidence to part, not the other way round. A code names a circuit or a symptom; it does not name the part that failed.
Note every code that is set, not just this one.
Codes that appear together usually narrow the cause faster than any one of them read alone.
Read the freeze frame — the conditions the fault was recorded under.
Cold or warm, idle or load, road speed and engine speed. A fault that only appears cold is a different fault from one that only appears under load, even with the same code on the scanner.
Confirm the fault is current rather than history.
Clear the code and see whether it returns under those same conditions. A code that does not come back may have been logged during a repair, a flat battery, or a bad connection that has since been disturbed.
Then follow the diagnostic notes further down this page, in the order they are written.
They are written in the order a shop works this code, cheapest checks first. Where they name a component, inspect its wiring and connector before replacing it.
If the code comes back after a repair, the underlying fault is still there. That is the point to bring in a scanner with live data and freeze-frame, or a shop that has one.
Common symptoms
- Check engine light
Read the full diagnostic procedureP0222 means the throttle/pedal position sensor 'B' signal voltage dropped below the calibrated low threshold, typically under 0.2 volts on a 0-5V cir…
P0222 means the throttle/pedal position sensor 'B' signal voltage dropped below the calibrated low threshold, typically under 0.2 volts on a 0-5V circuit. Because TPS/APP sensors run in pairs with opposite-slope curves, the 'B' sensor's normal at-rest voltage depends on the manufacturer's convention — on some platforms TPS-B idles at ~4.5V and falls to ~0.5V at WOT, while on others it idles at ~0.5V and rises to ~4.5V.
Cheapest first
- pull the FSM for your platform and confirm the expected at-rest voltage for sensor B before declaring it 'low' — a TPS-B that reads 0.4V at idle on a Ford may be perfectly normal while the same reading on a Chrysler is the fault.
- Back-probe the signal wire at the connector with KOEO and verify the voltage matches scan-tool live data; a mismatch points to ECM-side circuit damage.
- Confirm 5.0V reference at the connector and good ground (under 0.1V) before touching the sensor itself.
- Disconnect the sensor and jumper signal to the 5V reference at the harness side; if the scanner immediately swings to maximum voltage, the harness is intact and the sensor is shorted or failed internally.
- Common low-voltage causes: shorted-to-ground signal wire, lost 5V reference (often from a shorted neighboring sensor on a shared reference bus), corroded connector with one pin not making contact, or a failed sensor element inside the throttle body or pedal assembly.
- The expensive misdiagnosis: ordering a $300 electronic throttle body when the fault was a $0 corroded connector pin that cleared up after a wire-brush and dielectric-grease repair.
- Critical safety note: P0222 almost always triggers reduced-power limp mode — do not drive without diagnosis.
Vehicle-specific patterns2004-2010 Chrysler / Dodge / Jeep with the 3.5L / 3.7L / 4.7L / 5.7L drive-by-wire setup frequently throws P0222 alongside other TPS/APP codes from e…
- 2004-2010Chrysler / Dodge / Jeep with the 3.5L / 3.7L / 4.7L / 5.7L drive-by-wire setup frequently throws P0222 alongside other TPS/APP codes from electronic throttle body failure — the OEM throttle body's internal sensor wears out around 80k-120k miles and Chrysler / Mopar replacements are the durable fix.
- 2005-2012Nissan Altima / Maxima / 350Z / 370Z (VQ35 / VQ37) sees P0222 from the electronic throttle body's known sensor-failure pattern; the throttle body is paired to the ECM during a relearn procedure after replacement.
- 2007-2014GM full-size truck and SUV (Silverado, Sierra, Tahoe, Suburban, Yukon) with the 5.3L Vortec / LMG / LC9 sets P0222 from APP sensor failure at the pedal assembly more often than at the throttle body — pedal swap is simpler and resolves the majority of GM truck P0222 cases.
- 2008-2016Hyundai / Kia 2.4 Theta II and 3.3L / 3.8L Lambda engines throws P0222 from electronic throttle body sensor failure; on these engines the throttle body is a sealed assembly and is replaced as a unit.
Estimated repair$90 to $650.
Look up another code
More free tools