P2133 OBD-II Trouble Code: Throttle/Pedal Position Sensor/Switch F Circuit High Input

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Cost of diagnosing the P2133 code

P2133 is a diagnostic trouble code (DTC) for "Throttle/Pedal Position Sensor/Switch F Circuit High Input". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $70.00. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $30.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

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Check Engine Light

P2133 code definition

The P2133 diagnostic trouble code indicates that there is an issue with the F circuit of the Throttle/Pedal Position sensor switch.

Related Trouble Codes:

  • P2120 OBD-II Trouble Code: Throttle/Pedal Position Sensor/Switch D Circuit
  • P2121 OBD-II Trouble Code: Throttle/Pedal Position Sensor/Switch D Circuit Range/Performance
  • P2122 OBD-II Trouble Code: Throttle/Pedal Position Sensor/Switch D Circuit Low Input
  • P2123 OBD-II Trouble Code: Throttle/Pedal Position Sensor/Switch D Circuit High Input
  • P2124 OBD-II Trouble Code: Throttle/Pedal Position Sensor/Switch D Circuit Interm
  • P2125 OBD-II Trouble Code: Throttle/Pedal Position Sensor/Switch E Circuit
  • P2126 OBD-II Trouble Code: Throttle/Pedal Position Sensor/Switch E Circuit Range/Performance
  • P2127 OBD-II Trouble Code: Throttle/Pedal Position Sensor/Switch E Circuit Low Input
  • P2128 OBD-II Trouble Code: Throttle/Pedal Position Sensor/Switch E Circuit High Input
  • P2129 OBD-II Trouble Code: Throttle/Pedal Position Sensor/Switch E Circuit Interm
  • P2130 OBD-II Trouble Code: Throttle/Pedal Position Sensor/Switch F Circuit
  • P2131 OBD-II Trouble Code: Throttle/Pedal Position Sensor/Switch F Circuit Range/Performance
  • P2132 OBD-II Trouble Code: Throttle/Pedal Position Sensor/Switch F Circuit Low Input
  • P2134 OBD-II Trouble Code: Throttle/Pedal Position Sensor/Switch F Circuit Interm

What the P2133 code means

The Accelerator Pedal Position (APP) sensor sends a voltage signal to the Powertrain Control Module (PCM) regarding the position of the accelerator pedal. The voltage signal carries information to the PCM that communicates whether the throttle plate should open/close, therefore will dictate how much air should be let into the engine’s air/fuel mixture. The accelerator pedal is what actually opens or closes the throttle plate and it is pressed down by the driver. If the APP sensor is not working properly, it is unable to communicate to the PCM necessary information for the engine to run as it should. When this happens, the PCM will store the P2133 diagnostic trouble code and the Check Engine Light will come on.

What causes the P2133 code?

  • Faulty APP sensor
  • APP sensor harness is open or shorted
  • APP sensor wiring that is frayed or broken
  • APP sensor circuit has a poor electrical connection
  • APP sensor connector that is corroded or has bent pins
  • Defective throttle actuator control motor
  • Defective Throttle Position (TP) actuator
  • Defective TP sensor
  • Corroded, open, or shorted wiring or connectors in the throttle actuator motor
  • Loose control module ground strap or broken ground wire
  • Faulty PCM

What are the symptoms of the P2133 code?

  • Check Engine Light is on
  • No acceleration
  • Poor acceleration
  • Car may lack engine power
  • Black smoke when starting car
  • Car won’t start
  • Misfire condition
  • Stalling condition

How does a mechanic diagnose the P2133 code?

  • Use an OBD-II scanner to collect all trouble codes that have been stored by the PCM, as well as freeze frame data.

  • Inspect the APP sensor connector for corrosion, bent pins, or damaged plastic. Repair or replace connectors as necessary.

  • Inspect the APP sensor wiring for shorts, breaks, or frays. Repair or replace as necessary.

  • Clear all stored trouble codes from the PCM and complete a test drive to see if the P2133 trouble code comes back.

  • If the P2133 trouble code does come back, check the voltage signal of the APP sensor.

  • Compare the voltage signal reading with the manufacturer’s predetermined specifications.

  • If the voltage signal reading of the APP sensor does not fall within the manufacturer’s specifications, the APP sensor will need to be replaced.

  • Clear all stored trouble codes from the PCM and complete a test drive to see if the P2133 trouble code comes back.

  • If the P2133 trouble code does come back, check the voltage signal of the TP sensor.

  • Compare the voltage signal reading with the manufacturer’s predetermined specifications.

  • If the voltage signal reading of the TP sensor does not fall within the manufacturer’s predetermined specifications, the TP sensor will need to be replaced.

  • If the P2133 trouble code does come back, check the voltage signal of the TP actuator. It is important to note that this test should be done while the motor is running.

  • Compare the voltage signal reading of the TP actuator and check if the reading does not fall within the manufacturer’s predetermined specifications.

  • If the voltage signal reading of the TP actuator DOES NOT fall within the manufacturer’s predetermined specifications, the TP actuator is faulty.

  • If the voltage signal reading of the TP actuator DOES fall within the manufacturer’s predetermined specifications, the throttle actuator control motor is faulty.

  • To properly repair and replace the TP actuator and/or the throttle actuator control motor, the throttle body assembly will need to be replaced.

  • Diagnose any other diagnostic trouble codes that have been stored by the PCM in the order that they have been listed.

  • If diagnosis and repair of all listed trouble codes have been completed and pass inspection, it is positionable that there is a problem with the PCM. Failure of the PCM is rare but positionable.

Common mistakes when diagnosing the P2133 code

  • Replacing the APP sensor when the throttle body assembly should have been replaced.

  • Failing to inspect the wiring and connectors before replacing the APP and/or the throttle body assembly.

How serious is the P2133 code?

Symptoms of the P2133 diagnostic trouble code can prove to be extremely dangerous. The vehicle may lose power and/or acceleration during operation when maneuvering through traffic. Therefore, the P2133 diagnostic trouble code is considered serious and should not be allowed to persist without being diagnosed and repaired.

What repairs can fix the P2133 code?

  • Replacing the APP sensor
  • Replacing or repairing APP sensor wiring harness opens and/or shorts
  • Repairing or replacing APP sensor wiring that is frayed or broken
  • Repairing or replacing APP sensor circuitry that has poor electrical connection
  • Repairing or replacing APP sensor connector that is corroded or has bent pins
  • Replacing throttle actuator control motor
  • Replacing TP actuator
  • Replacing TP sensor
  • Replacing throttle actuator motor wiring or connectors that are open, shorted, or corroded
  • Replacing and reprogramming PCM

Additional comments for consideration regarding the P2133 code

Problems with the APP sensor and/or the throttle body assembly are common causes of the P2133 diagnostic trouble code. It is important to take time when diagnosing this trouble code to make sure repairs are not done in error. It is also important to diagnose trouble codes in the same order that they are listed, if more than one diagnostic trouble code has been stored by the PCM.

Need help with a P2133 code?

YourMechanic offers certified 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.

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