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P0725 Mitsubishi Code - Engine Speed Input Circuit Malfunction

Quick Answer

The P0725 code for Mitsubishi vehicles indicates an Engine Speed Input Circuit Malfunction. Common causes include Faulty engine speed sensor, Loose or damaged wiring connections between the sensor and ECM, Corrosion or damage to the sensor or wiring. 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
P0725 Mitsubishi indicates Engine Speed Input Circuit Malfunction.
Common causes
Common causes include Faulty engine speed sensor, Loose or damaged wiring connections between the sensor and ECM, Corrosion or damage to the sensor or wiring.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0725 Mitsubishi Description

The P0725 code for Mitsubishi vehicles indicates an Engine Speed Input Circuit Malfunction. This means that the Engine Control Module (ECM) is not receiving a proper signal from the engine speed sensor, also known as the crankshaft position sensor. The engine speed sensor is responsible for monitoring the rotational speed of the engine's crankshaft, which is crucial for various engine functions such as fuel injection timing, ignition timing, and transmission shifting.

OBDII Code P0725 Mitsubishi - Engine Speed Input Circuit Malfunction
P0725 Mitsubishi Code - Engine Speed Input Circuit Malfunction

Common Causes of P0725 Mitsubishi

  1. Faulty engine speed sensor
  2. Loose or damaged wiring connections between the sensor and ECM
  3. Corrosion or damage to the sensor or wiring
  4. Faulty ECM circuitry
  5. Poor electrical connections or grounds

Symptoms of P0725 Mitsubishi

  1. Rough idling or irregular engine speed
  2. Engine misfires or hesitation during acceleration
  3. Engine stalling or difficulty starting
  4. Check Engine Light illuminated on the dashboard

How to Fix P0725 Mitsubishi

  1. Begin by diagnosing the issue using a scan tool to read the trouble codes and determine the exact cause of the Engine Speed Input Circuit Malfunction.
  2. Inspect the engine speed sensor and its wiring for any visible damage, corrosion, or disconnection. Replace the sensor if necessary.
  3. Check the wiring harness for any breaks, shorts, or loose connections. Repair or replace damaged wiring as needed.
  4. Test the ECM circuitry for proper function and repair any faults found.
  5. Clear the trouble codes from the ECM's memory and perform a road test to verify that the issue has been resolved.

Cost to Fix P0725 Mitsubishi

The cost of repairing a P0725 Engine Speed Input Circuit Malfunction can vary depending on the specific cause of the issue and the labor rates in your area. Typically, replacing the engine speed sensor can cost between $100 and $200, while addressing wiring or ECM circuitry problems may increase the total repair cost. Including parts and labor, the total repair cost for this issue can range from $150 to $500 or more. It's recommended to consult with a professional mechanic for a more accurate estimate based on your vehicle's make and model. Keep in mind that diagnostic time and labor rates can influence the final cost, so be prepared for potential variations in pricing.

When is the Code Detected?

The P0725 Codes is triggered when Transmission Control Module (TCM) does not receive the engine speed signal from 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 P0725 Mitsubishi Code

1. What are the common symptoms of OBDII code P0725 in a Mitsubishi?

The common symptoms of OBDII code P0725 in a Mitsubishi include erratic or non-functioning speedometer, abrupt shifting in automatic transmission, and illuminated Check Engine Light.

2. What does the OBDII code P0725 in a Mitsubishi indicate?

OBDII code P0725 in a Mitsubishi indicates an Engine Speed Input Circuit Malfunction, which typically involves issues with the vehicle's speed sensor or related components.

3. What are the possible causes of OBDII code P0725 in a Mitsubishi?

Possible causes of OBDII code P0725 in a Mitsubishi include a faulty speed sensor, damaged wiring or connectors in the speed sensor circuit, or issues with the vehicle's Engine Control Module (ECM).

4. How can I diagnose the OBDII code P0725 in my Mitsubishi?

To diagnose OBDII code P0725 in your Mitsubishi, you can use an OBDII scanner to retrieve the code and then inspect the speed sensor, wiring, and connectors for any visible damage or issues.

5. Can I continue driving my Mitsubishi with OBDII code P0725?

It is not recommended to continue driving your Mitsubishi with OBDII code P0725, as it can lead to transmission issues and potential safety hazards. It is best to address the underlying problem promptly.

6. How can I repair OBDII code P0725 in my Mitsubishi?

Repairing OBDII code P0725 in your Mitsubishi may involve replacing the speed sensor, repairing damaged wiring or connectors, or resetting the ECM to clear the code.

7. Will resetting the Check Engine Light resolve OBDII code P0725 in my Mitsubishi?

Resetting the Check Engine Light may temporarily clear the code, but it will not fix the underlying issue causing OBDII code P0725 in your Mitsubishi. It is important to diagnose and address the root cause of the problem.

8. Is OBDII code P0725 a serious issue in a Mitsubishi?

OBDII code P0725 can be a serious issue in a Mitsubishi, as it can lead to transmission problems and affect the vehicle's performance and drivability. It is recommended to address this code promptly.

9. Can a DIY enthusiast repair OBDII code P0725 in a Mitsubishi?

Depending on the individual's skill level and access to tools, a DIY enthusiast may be able to repair OBDII code P0725 in a Mitsubishi by following diagnostic procedures and replacing faulty components.

10. How much does it cost to repair OBDII code P0725 in a Mitsubishi?

The cost to repair OBDII code P0725 in a Mitsubishi can vary depending on the specific cause of the issue, parts needed for replacement, and labor costs. It is advisable to consult a professional mechanic for an accurate estimate.

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