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Engine-Codes – Chrysler – P0432 Chrysler

P0432 Chrysler Code - Catalytic 2/1 Efficiency

Quick Answer

The P0432 code for Chrysler vehicles indicates an issue with the efficiency of the catalytic converter for bank 2, sensor 1. Common causes include Faulty catalytic converter, Oxygen sensor malfunction, Engine misfires. 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
P0432 Chrysler indicates Catalytic 2/1 Efficiency .
Common causes
Common causes include Faulty catalytic converter, Oxygen sensor malfunction, Engine misfires.
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 P0432 Chrysler Description

The P0432 code for Chrysler vehicles indicates an issue with the efficiency of the catalytic converter for bank 2, sensor 1. The catalytic converter plays a crucial role in reducing harmful emissions by converting toxic gases into less harmful substances. When the efficiency of the catalytic converter is compromised, it can lead to increased emissions and reduced fuel efficiency. This code specifically points to a problem with the converter on the side of the engine where cylinder 2 is located. If left unaddressed, it can eventually cause damage to other components of the vehicle's emission control system.

OBDII Code P0432 Chrysler - Catalytic 2/1 Efficiency
P0432 Chrysler Code - Catalytic 2/1 Efficiency

Common Causes of P0432 Chrysler

  1. Faulty catalytic converter
  2. Oxygen sensor malfunction
  3. Engine misfires
  4. Exhaust leaks
  5. Engine coolant entering the exhaust system

Symptoms of P0432 Chrysler

  1. Decreased fuel efficiency
  2. Engine misfires or hesitation
  3. Rough idling
  4. Check Engine Light illuminated
  5. Failed emissions test

How to Fix P0432 Chrysler

  1. Diagnose the specific issue causing the code using a scan tool and performing a visual inspection of the catalytic converter and oxygen sensor.
  2. Replace the faulty catalytic converter or oxygen sensor.
  3. Repair any exhaust leaks or engine misfires that may be contributing to the problem.
  4. Clear the error code and test drive the vehicle to ensure the issue has been resolved.
  5. Perform an emissions test to verify that the catalytic converter is now functioning properly.

Cost to Fix P0432 Chrysler

The cost of repairing a P0432 code can vary depending on the specific cause of the issue and the labor rates in your area. Generally, replacing a catalytic converter can range from $500 to $2,500, while replacing an oxygen sensor may cost between $100 and $300. Additional costs may include labor charges, diagnostic fees, and any necessary parts or materials. It is recommended to consult with a trusted mechanic or auto repair shop for a more accurate estimate based on your vehicle's make and model.

What does this mean?

Tech Notes for P0432 Chrysler

As the code description implies the P0432 code means that the vehicle's control module has detected that the three-way catalytic converter is not working properly (is not as efficient as the factory is expecting). Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases the catalytic convert needs to be replaced to fix the problem. If the P0432 code is combined with other codes, try fixing the other codes first.

When is the Code Detected?

The P0432 code is set when the Engine Control Module (ECM) detects rear HO2S value difference becomes closer to value of front HO2S. The ECM monitors when vehicle speed is 25-60 MPH, load is 22-45 percent and engine speed is 1000-3000 RPM.

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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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