P222E — Barometric Pressure Sensor "B" Circuit Intermittent/Erratic
OBD2 code P222E flags a problem with the sensor and actuator circuits (barometric pressure sensor "B" circuit intermittent/erratic). The car is usually drivable while you plan the repair. Common culprits: control module driver fault, poor ground connection, blown fuse feeding the circuit.
powertrain (engine/transmission)
Is it safe to drive?
Short-term driving is OK In most cases the car remains drivable, possibly with reduced performance or a disabled auxiliary system. If symptoms include stalling, no-start or brake/steering warnings, treat it as urgent.
How to diagnose with an OBD scanner
- Read the code and freeze frame Connect an OBD2 scanner, confirm P222E is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
- Check for companion codes and TSBs Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
- Inspect wiring and connectors Visually inspect the wiring harness and connectors related to the barometric pressure sensor "B" circuit intermittent/erratic for damage, corrosion, chafing or poor contact.
- Subsystem check Measure reference voltage, ground and signal continuity at the component connector.
- Subsystem check Wiggle-test the harness while watching the signal in live data — dropouts reveal broken wires.
- Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P222E does not return.
Approximate repair cost
Repair cost depends on which component actually failed. Typical scenarios for P222E (parts and labor, USD, independent shop rates): Repair wiring or connectors: $80–$250; Control module repair: $300–$1,000; Replace the faulty sensor or actuator: $150–$500. Overall, fixing P222E usually costs between $80 and $1,000. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.
Common questions
How do I diagnose P222E myself?
Start with a scan: confirm P222E, save the freeze frame and note any companion codes. Then inspect the wiring and connectors related to the sensor and actuator circuits, and verify the suspect component against live data before buying parts.
How much does it cost to fix P222E?
Repair wiring or connectors — $80–$250; Control module repair — $300–$1,000; Replace the faulty sensor or actuator — $150–$500. Exact cost depends on the root cause, your vehicle and local labor rates — a proper diagnosis is the cheapest first step.
What are the symptoms of P222E?
Drivers most often notice: increased fuel consumption in some cases, the affected system operates intermittently or not at all, Check Engine Light on, possible limp mode depending on the affected component.
What is the most common cause of P222E?
The most common causes are: control module driver fault, poor ground connection, blown fuse feeding the circuit.
Is it safe to drive with P222E?
In most cases the car remains drivable, possibly with reduced performance or a disabled auxiliary system. If symptoms include stalling, no-start or brake/steering warnings, treat it as urgent.
What does P222E mean?
P222E (Barometric Pressure Sensor "B" Circuit Intermittent/Erratic) is stored when self-diagnostics detect abnormal readings or behaviour of the sensor and actuator circuits. It belongs to the powertrain (engine/transmission) category.
To set P222E, the control module compares live readings of the sensor and actuator circuits against calibrated limits, usually over several drive cycles. Alongside the code it stores a freeze frame — a snapshot of rpm, load, coolant temperature and vehicle speed at the moment of failure. Reading that snapshot first saves diagnostic time.
What causes P222E?
- blown fuse feeding the circuit
- poor ground connection
- corroded, loose or damaged connector
- faulty sensor or actuator of the affected circuit
- control module driver fault
- open or shorted wiring in the circuit
Common symptoms of P222E
- increased fuel consumption in some cases
- the affected system operates intermittently or not at all
- Check Engine Light on
- possible limp mode depending on the affected component
How to diagnose P222E
- Connect an OBD2 scanner, confirm P222E is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
- Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
- Visually inspect the wiring harness and connectors related to the barometric pressure sensor "B" circuit intermittent/erratic for damage, corrosion, chafing or poor contact.
- Measure reference voltage, ground and signal continuity at the component connector.
- Wiggle-test the harness while watching the signal in live data — dropouts reveal broken wires.
- Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P222E does not return.
How to fix P222E
Start with the cheapest and most common causes before replacing expensive parts:
- Repair wiring or connectors — $80–$250
- Control module repair — $300–$1,000
- Replace the faulty sensor or actuator — $150–$500
How much does it cost to fix P222E?
Repair cost depends on which component actually failed. Typical scenarios for P222E (parts and labor, USD, independent shop rates):
- Repair wiring or connectors: $80–$250
- Control module repair: $300–$1,000
- Replace the faulty sensor or actuator: $150–$500
Overall, fixing P222E usually costs between $80 and $1,000. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.
Can you drive with P222E?
In most cases the car remains drivable, possibly with reduced performance or a disabled auxiliary system. If symptoms include stalling, no-start or brake/steering warnings, treat it as urgent.