Skip the auto shop - Our mechanics make house calls

P0222 OBD-II Trouble Code: Throttle/Pedal Position Switch/Sensor B Circuit Low Input

Check Engine Light

P0222 code definition

Throttle/Pedal Position Switch/Sensor B Circuit Low Input

What the P0222 code means

The manufacturer specifies a range of acceptable voltage to be produced from the throttle position sensor. The P0222 code is an indication that the voltage produced by the throttle position sensor has been the detected by the Engine Control Module (ECM) to have fallen below this specification.

What are the causes of the P0222 code?

  • Faulty throttle position sensor
  • Faulty ECM
  • Malfunction within the throttle body
  • Throttle position sensor that is out of alignment
  • Unplugged or damaged wiring associated with the throttle position sensor.

What are the symptoms of the P0222 code?

  • Poor acceleration
  • Loss of power
  • Engine may be hard to start or not start at all
  • Accelerator pedal may be unresponsive
  • The Check Engine Light will be illuminated

How does a mechanic diagnose the P0222 code?

A mechanic may diagnose the P0222 code by visually inspecting the throttle body and everything associated with it for damages and faults. This would include making sure the throttle position sensor is mounted to the throttle body correctly and that the throttle body itself is operating properly.

This inspection would also include making sure all electrical connectors are plugged in and properly secured. If everything associated with the throttle body passes the visual inspection, the next step would be to test the throttle position sensor for proper voltage with a digital multimeter using the manufacturer’s recommended procedure. If the throttle position sensor fails the voltage test, the mechanic would then replace the throttle position sensor at the customer’s request.

If the throttle position sensor passes the voltage test, the mechanic would then use a high tech scan tool to test the ECM for faults, as it is one of the last parts unchecked in this system.

Common mistakes when diagnosing the P0222 code

Assuming that the throttle position sensor is faulty because this part is mentioned in the trouble code definition.

This is one of the worst mistakes that someone can make when attempting to diagnose a Check Engine Light. Just because a part is mentioned in a trouble code definition does not mean that the part is faulty. In fact, it could mean that the part or sensor is doing exactly what it is intended to do.

How serious is the P0222 code?

The P0222 code is serious as it can cause driveability issues. It can become quite bothersome to a vehicle owner to experience a lack of power while driving their vehicle and running late to work. This type of symptom usually convinces the driver to repair the issue as soon as possible.

What repairs can fix the P0222 code?

Additional comments regarding the P0222 code?

When this code appears it will not cause intermittent symptoms. This code will cause the symptoms listed the entire time the code is stored. The problems associated with this issue will not be resolved until it is diagnosed and repaired.

Need help with a P0222 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

How to Transfer a Car Title in Idaho
In order to prove ownership of a car, you must have the title. However, when a car is sold, given away or inherited, the title needs...
Veteran and Military Driver Laws and Benefits in Idaho
The state of Idaho offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch in the...
P2159 OBD-II Trouble Code: Vehicle Speed Sensor B Range/Performance
Diagnostic Trouble Code (DTC): P2159 P2159 code definition Vehicle Speed Sensor B Range/Performance Related Trouble Codes: P2158: Vehicle Speed Sensor B P2160: Vehicle Speed Sensor B Circuit Low P2161:...


Related questions

Q: Accelerator Pedal Position Sensor p0222 Diagnosis

Hello. If the switch has already been replaced then the next thing I would check is APP sensor's harness and wiring. If there is any issue with the harness or wiring then it may be possible that it is throwing...

Q: Well the check engine light is blinking. A track light keeps coming on and there seems to be loss of power. Engine running rough.

Hello. If the check engine light is flashing then that typically means that there is a cylinder misfire. This can be caused by a bad spark plug, spark plug coil, or fuel injector. It can also be caused by something...

Q: Car starts hard and occasionally stalls out. Smells like gas when running.

Hello. If you have poor connections at the ignition coils then that will cause cylinder misfires. These loose connections can also shorten the life of the ignition coils. The connectors need to be replaced in order to ensure that there...