Engine-CodesChrysler – P2122 Chrysler

P2122 Chrysler Code - Throttle/Pedal Position Sensor/Switch 'D' Circuit Low

Quick Answer

The P2122 Chrysler diagnostic trouble code indicates a problem with the Throttle/Pedal Position Sensor/Switch 'D' Circuit being too low. Common causes include A faulty throttle position sensor, Corrosion or damage to the wiring harness connected to the sensor, Poor electrical connection or ground issues. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P2122 Chrysler indicates Throttle/Pedal Position Sensor/Switch 'D' Circuit Low.
Common causes
Common causes include A faulty throttle position sensor, Corrosion or damage to the wiring harness connected to the sensor, Poor electrical connection or ground issues.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P2122 Chrysler Description

The P2122 Chrysler diagnostic trouble code indicates a problem with the Throttle/Pedal Position Sensor/Switch 'D' Circuit being too low. This sensor is responsible for monitoring the position of the throttle pedal in relation to the throttle body, allowing the engine control module (ECM) to adjust the air-fuel mixture for optimal performance. When this sensor detects a voltage lower than the specified range, it triggers the P2122 code, indicating a potential issue with the sensor or its circuit.

OBDII Code P2122 Chrysler - Throttle/Pedal Position Sensor/Switch 'D' Circuit Low
P2122 Chrysler Code - Throttle/Pedal Position Sensor/Switch 'D' Circuit Low

Common Causes of P2122 Chrysler

  1. A faulty throttle position sensor.
  2. Corrosion or damage to the wiring harness connected to the sensor.
  3. Poor electrical connection or ground issues.
  4. Malfunctioning ECM affecting the sensor's readings.

Symptoms of P2122 Chrysler

  1. Poor acceleration or hesitation when pressing the gas pedal.
  2. Rough idling or stalling at stops.
  3. Lack of response from the engine when accelerating.
  4. Illumination of the check engine light on the dashboard.

How to Fix P2122 Chrysler

  1. Begin by conducting a thorough inspection of the throttle position sensor and its wiring harness for any visible damage or corrosion.
  2. Test the sensor using a multimeter to check for proper voltage output within the specified range.
  3. If the sensor is faulty, replace it with a new one following the manufacturer's guidelines.
  4. Clear the diagnostic trouble codes from the ECM using a scan tool to reset the system.
  5. Test drive the vehicle to ensure the issue has been resolved and the code does not reappear.

Cost to Fix P2122 Chrysler

The typical repair costs for addressing a P2122 Chrysler code can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor. It is important to note that diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically ranging between $80 and $150. Factors such as the vehicle's make and model, engine type, and the location of the repair shop can also influence the overall cost. It is recommended to obtain a personalized estimate from a local auto repair shop for a more accurate cost assessment.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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