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P2133 OBD2: Throttle/Pedal Position Sensor/Switch "F" Circuit High

P2133 OBD2: Throttle/Pedal Position Sensor/Switch “F” Circuit High

The P2133 code is triggered when the Engine Control Module (ECM) detects a high voltage signal from the Throttle Position Sensor (TPS) or the Accelerator Pedal Position (APP) sensor. This fault indicates a problem in the throttle/pedal position sensor circuit, which can severely affect vehicle performance.

What Does the P2133 Code Mean?

The P2133 code signifies that there is an issue with the Throttle/Pedal Position Sensor/Switch “F” Circuit High. This usually means the sensor is reporting a value that is higher than expected by the PCM (Powertrain Control Module), leading to potential problems in engine performance.

What Causes the P2133 Code?

Several factors can contribute to the triggering of the P2133 code, including:

  • Accelerator Pedal Position (APP) assembly failure
  • Throttle Position Sensor (TPS) failure
  • Powertrain Control Module (PCM) failure
  • Wiring issues, such as shorts or corrosion in the circuit

What Are the Symptoms of the P2133 Code?

Symptoms that may accompany the P2133 code include:

  • Decreased engine performance
  • Engine may enter limp home mode (reduced performance)

How Serious Is the P2133 Code?

The P2133 code is considered urgent. It indicates a significant malfunction that can lead to severe damage to the vehicle or pose risks to the driver and passengers. Immediate attention is necessary to prevent further complications.

How to Diagnose the P2133 Code

Diagnosing the P2133 code involves several steps:

  1. Use an OBD-II scanner to confirm the code and check for any other related trouble codes.
  2. Inspect the wiring and connectors associated with the throttle position sensor and accelerator pedal position sensor.
  3. Test the Throttle Position Sensor and Accelerator Pedal Position Sensor for proper voltage output.
  4. Check the Powertrain Control Module for any faults.

Common Repairs for the P2133 Code

Repairs that may resolve the P2133 code include:

  • Replacing the Throttle Position Sensor (TPS)
  • Replacing the Accelerator Pedal Position (APP) assembly
  • Repairing or replacing damaged wiring or connectors
  • Replacing the Powertrain Control Module (PCM) if necessary

How Much Does It Cost to Fix the P2133 Code?

The cost to fix the P2133 code can vary widely based on the specific repairs needed. On average, you might expect to pay between $100 and $600, depending on whether you are replacing sensors, repairing wiring, or addressing PCM issues.

Can I Fix the P2133 Code Myself?

While some aspects of diagnosing and fixing the P2133 code can be done yourself, such as checking wiring and connectors, it is advisable to consult a professional mechanic for accurate diagnosis and repairs. This ensures that the underlying issues are addressed appropriately and safely.

About JC Landry

JC spent 15+ years as a certified Master Mechanic before trading the shop for the keyboard. He's worked across dealerships, owned and operated his own independent garage, and consulted on automotive trade school curricula, reviewing technical textbooks used in vocational programs. He now serves as Editor-in-Chief at eManualOnline.com, where he oversees the platform's technical content. He's one of the few voices in automotive publishing who has actually turned wrenches professionally on the vehicles he covers. He didn't learn automotive repair to write about it. He learned to write after spending over a decade doing it.

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