P0223 medium Severity

P0223: Throttle/Pedal Position Sensor/Switch B Circuit High Input

May cause loss of power, limp mode, hesitation, rough idle or throttle unresponsiveness

Overview

P0223 indicates a high voltage condition in the throttle or pedal position sensor B circuit detected by the PCM, often leading to acceleration and throttle control issues.

Common Symptoms

  • Check Engine Light illuminated
  • Reduced engine power or acceleration
  • Throttle unresponsiveness or limp mode
  • Rough or unstable idle
  • Engine hesitation or stalling

Most Common Causes

Faulty throttle position sensor (TPS) or pedal position sensor (PPS) high

High input voltage typically originates from the sensor itself malfunctioning.

Wiring faults in the TPS/PPS circuit (short to power, open circuit, corrosion) high

Damaged wiring or connectors often triggers high input voltage readings.

Corroded or loose electrical connectors medium

Poor connection can cause signal distortion leading to high voltage being read.

Faulty PCM/ECM or internal electronic fault low

Less common and should be confirmed after ruling out sensor and wiring issues.

Diagnostic Steps

  1. Connect an OBD-II scanner and confirm the presence of P0223 and any related DTCs
    Expected: Code P0223 stored; possibly additional related codes
    Interpretation: Verifies the code is current and checks for linked sensor/system issues
  2. Perform a visual inspection of wiring harness and connectors for the TPS/PPS circuits
    Expected: No broken, corroded, pinched, or loose wiring/connectors
    Interpretation: Wiring problems can cause high voltage readings
  3. Use a digital multimeter to test reference voltage, ground, and signal at the sensor
    Expected: 5V reference present, sensor signal rises smoothly from ~0.5V to ~4.5V
    Interpretation: Abnormal signal like a stuck high voltage indicates sensor or circuit fault
  4. If wiring and sensor tests are normal, consider PCM/ECM testing or replacement
    Expected: No faults in wiring or sensors; PCM still storing P0223
    Interpretation: Suggests internal control module fault; low confidence cause

Repair Solutions

Replace faulty throttle position sensor (TPS) or pedal position sensor (PPS) medium
Estimated Cost: $100 - $600

Cost varies by vehicle; economy of replacing the full throttle body assembly on some models

Repair or replace damaged wiring and connectors medium
Estimated Cost: $50 - $200

Depends on extent of wiring damage

Replace PCM/ECM if confirmed faulty hard
Estimated Cost: $500 - $1500

Low confidence; only after all other diagnostics

Common Misdiagnoses

Avoid these common diagnostic mistakes:

  • Assuming only throttle body mechanical fault without diagnosing wiring or sensor electronics

Frequently Asked Questions

Can you explain the meaning of P0223?

The P0223 code stands for Throttle/Pedal Position Sensor/Switch B Circuit High Input. This generally indicates an issue with the Sensors system.

Should I stop driving if I have P0223?

You should treat P0223 as a medium issue. May cause loss of power, limp mode, hesitation, rough idle or throttle unresponsiveness

Symptoms associated with DTC P0223

Common symptoms include: Check Engine Light illuminated, Reduced engine power or acceleration, Throttle unresponsiveness or limp mode. You might also notice the Check Engine Light is on.

Why is my car throwing a P0223 code?

This code is frequently triggered by: Faulty throttle position sensor (TPS) or pedal position sensor (PPS), Wiring faults in the TPS/PPS circuit (short to power, open circuit, corrosion), Corroded or loose electrical connectors.

Repair cost breakdown for P0223

The cost varies significantly based on the root cause. For example, replacing a Repair or replace damaged wiring and connectors typically costs between $50 and $200, while fixing a Replace PCM/ECM if confirmed faulty can range from $500 to $1500.

Does code P0223 apply to Dodge vehicles?

Yes, P0223 is a generic code that applies to all OBD-II compliant vehicles, including Ford, Toyota, Honda, Chevrolet, Nissan, Dodge, BMW, and more.

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