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P0152 Chrysler Code - O2 sensor 2/1 Circuit High

Quick Answer

The P0152 Chrysler diagnostic trouble code (DTC) indicates that there is a high voltage condition in the O2 sensor 2/1 circuit. Common causes include Faulty O2 sensor, Wiring issues or shorts in the O2 sensor circuit, Exhaust system leaks. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means
P0152 Chrysler indicates O2 sensor 2/1 Circuit High.
Common causes
Common causes include Faulty O2 sensor, Wiring issues or shorts in the O2 sensor circuit, Exhaust system leaks.
Severity
Moderate - service should be scheduled soon.
Can I drive?
The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
What is this?
Table of contents Created and updated by William Orellana on Aug 30, 2024
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Code P0152 Chrysler Description

The P0152 Chrysler diagnostic trouble code (DTC) indicates that there is a high voltage condition in the O2 sensor 2/1 circuit. This means that the oxygen sensor located after the catalytic converter in bank 2 is sending a signal that is higher than the normal range. The O2 sensor plays a crucial role in monitoring the oxygen levels in the exhaust gases, which helps the engine control module (ECM) adjust the air-fuel mixture for optimal performance and emissions. When the O2 sensor 2/1 circuit is reading high voltage, it can lead to incorrect fuel trim adjustments, reduced fuel efficiency, and increased emissions. If left unaddressed, this issue can potentially cause damage to the catalytic converter and other engine components over time.

OBDII Code P0152 Chrysler - O2 sensor 2/1 Circuit High
P0152 Chrysler Code - O2 sensor 2/1 Circuit High

Common Causes of P0152 Chrysler

  1. Faulty O2 sensor
  2. Wiring issues or shorts in the O2 sensor circuit
  3. Exhaust system leaks
  4. Engine coolant leaks contaminating the O2 sensor

Symptoms of P0152 Chrysler

  1. Decreased fuel efficiency
  2. Rough idling or stalling
  3. Engine misfires
  4. Check Engine Light illuminated on the dashboard

How to Fix P0152 Chrysler

  1. Begin by visually inspecting the O2 sensor and its wiring for any signs of damage or corrosion.
  2. Use a multimeter to test the O2 sensor's voltage output to determine if it is within the specified range.
  3. If the O2 sensor is faulty, replace it with a new one following manufacturer's guidelines.
  4. Check and repair any damaged wiring or connectors in the O2 sensor circuit.
  5. Clear the DTC codes and perform a test drive to ensure the issue has been resolved.

Cost to Fix P0152 Chrysler

The cost of repairing a P0152 Chrysler code can vary depending on the specific cause of the issue. Typically, replacing an O2 sensor can cost between $100 to $300, including parts and labor. If additional repairs are needed, such as fixing wiring issues or addressing exhaust leaks, the total repair cost can increase. It's recommended to consult with a qualified mechanic or auto repair shop to get an accurate estimate based on your vehicle's make and model. Remember that labor rates and diagnostic fees can vary, so it's best to inquire about these costs upfront.

What does this mean?

Tech Notes for P0152 Chrysler

Replacing the Front Heated Oxygen Sensor Bank 2 usually takes care of the problem

When is the Code Detected?

An excessively high voltage from the sensor is sent to Engine Control Module (ECM).

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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.

Frequently Asked Questions about P0152 Chrysler Code

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  • Tengo problema con ese código p0152 ya cambié 2sensores delanteros y siguió compre otros 2 de diferente marcas e igual párese el mismo código no marca otro si no el mismo ya gaste en sensores la lleve con un eléctrico y el diagnóstico que son los 2 sensores frontales cosas que ya e comprado 4 persiste el problema del código

    Reply to Comment

    • Hola, según el código P0152, el sistema indica una señal alta en el circuito del sensor de oxígeno (sensor 1 del banco 2). Dado que ya has reemplazado el sensor en varias ocasiones y con diferentes marcas, es muy probable que el problema no esté en el sensor en sí, sino en el cableado o en las conexiones. Te recomiendo que revises cuidadosamente:

      • Conectores y terminales: Asegúrate de que no haya corrosión, pines doblados o conexiones flojas.
      • Cableado: Verifica que los cables no tengan daños, cortocircuitos o peladuras que puedan estar ocasionando una señal errónea.
      • Tomas a tierra y señales de referencia: Confirma que la tierra y las señales de voltaje de referencia estén dentro de los parámetros correctos.
      • Diagnóstico adicional: Comprueba si aparecen otros códigos que puedan dar pistas sobre fallas en la instalación eléctrica o en el ECM.

      Si tras revisar todo el sistema eléctrico no encuentras fallas, podría ser útil hacer una revisión más profunda en un taller especializado o considerar que el ECM tenga alguna anomalía. ¡Suerte!

      Reply to Comment