AutoCodes – Infiniti – P0725 Infiniti

P0725 Infiniti Code - Engine Speed Signal

Quick Answer

The Engine Control Module (ECM) monitors the engine speed through the Crankshaft Position (CKP) sensor with the engine running, and send a signal to the Transmission Control Module (TCM). Common causes include Faulty Crankshaft Position (CKP) Sensor, Crankshaft Position (CKP) Sensor harness is open or shorted, Crankshaft Position (CKP) Sensor circuit poor electrical connection. 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 Infiniti indicates Engine Speed Signal.
Common causes: Common causes include Faulty Crankshaft Position (CKP) Sensor, Crankshaft Position (CKP) Sensor harness is open or shorted, Crankshaft Position (CKP) Sensor circuit poor electrical connection.
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.

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Code Popularity 29,812

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 01, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0725 Infiniti Description

The Engine Control Module (ECM) monitors the engine speed through the Crankshaft Position (CKP) sensor with the engine running, and send a signal to the Transmission Control Module (TCM). The P0725 Diagnostic Trouble Code (DTC) is triggered when the Transmission Control Module does not receive the engine speed signal from the Engine Control Module.

OBDII Code P0725 Infiniti - Engine Speed Signal - AutoCodes.com — P0725 Infiniti Code - Engine Speed Signal

What does this mean?

What are the Possible Causes of the DTC P0725 Infiniti?

Faulty Crankshaft Position (CKP) Sensor
Crankshaft Position (CKP) Sensor harness is open or shorted
Crankshaft Position (CKP) Sensor circuit poor electrical connection
Communication error between the Engine Control Module (ECM) and Transmission Control Module (TCM)

How to Fix the DTC P0725 Infiniti?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

Very common problem with Infiniti vehicles, usually replacing the Crankshaft Position sensor takes care of the problem.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0725 Infiniti code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0725 Infiniti code?

Need more information on how to fix the P0725 Infiniti code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0725 Infiniti code diagnosed by a professional: Find a repair shop in your area

Information for Specific Infiniti Models

P0725 2003 Infiniti G35 — Engine Speed Signal
P0725 2004 Infiniti G35 — Engine Speed Signal
P0725 2005 Infiniti G35 — Engine Speed Signal
P0725 2006 Infiniti G35 — Engine Speed Signal

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 Infiniti Code

1. What are the common symptoms of OBDII code P0725 in an Infiniti?

The common symptoms of OBDII code P0725 in an Infiniti include issues with the vehicle's speedometer, erratic shifting of gears, and an illuminated check engine light.

2. What does OBDII code P0725 in an Infiniti indicate?

OBDII code P0725 in an Infiniti indicates a problem with the engine speed sensor circuit, specifically the lack of signal from the sensor.

3. What are the possible causes of OBDII code P0725 in an Infiniti?

Possible causes of OBDII code P0725 in an Infiniti include a faulty engine speed sensor, damaged wiring or connectors in the sensor circuit, or a malfunctioning ECM (engine control module).

4. How can I diagnose the issue related to OBDII code P0725 in my Infiniti?

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

5. Can I still drive my Infiniti with OBDII code P0725?

It is not recommended to drive your Infiniti with OBDII code P0725, as it can lead to further damage to the vehicle's transmission or engine due to incorrect speed readings.

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

To repair OBDII code P0725 in your Infiniti, you may need to replace the engine speed sensor, repair any damaged wiring or connectors, or reprogram the ECM if necessary.

7. Is it possible to reset OBDII code P0725 in an Infiniti without fixing the underlying issue?

While you can clear the code temporarily, it will likely reappear if the underlying issue causing OBDII code P0725 in your Infiniti is not fixed.

8. Can a DIY enthusiast fix OBDII code P0725 in an Infiniti?

Depending on your skills and experience with automotive repairs, a DIY enthusiast may be able to fix OBDII code P0725 in an Infiniti by following a repair manual or seeking guidance from online resources.

9. How much does it cost to repair OBDII code P0725 in an Infiniti?

The cost of repairing OBDII code P0725 in an Infiniti can vary depending on the exact cause of the issue, but it may range from $100 to $500 or more, including parts and labor.

10. How urgent is it to address OBDII code P0725 in an Infiniti?

It is important to address OBDII code P0725 in an Infiniti promptly to prevent further damage to the vehicle and ensure safe and efficient operation of the engine and transmission.