AutoCodes – Subaru – P0715 Subaru

P0715 Subaru Code - Torque Converter Turbine Speed Sensor Circuit Malfunction

Quick Answer

The Input Speed Sensor detects the primary pulley revolution speed and sends a signal to the Transmission Control Module (TCM) and Engine Control Module (ECM). Common causes include Faulty Transmission Speed Sensor, Transmission Speed Sensor harness is open or shorted, Transmission Speed 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: P0715 Subaru indicates Torque Converter Turbine Speed Sensor Circuit Malfunction.
Common causes: Common causes include Faulty Transmission Speed Sensor, Transmission Speed Sensor harness is open or shorted, Transmission Speed 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 22,421

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 Feb 12, 2019

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0715 Subaru Description

The Input Speed Sensor detects the primary pulley revolution speed and sends a signal to the Transmission Control Module (TCM) and Engine Control Module (ECM). The ECM sets the OBDII code when the Input Speed Sensor is out of factory specifications.

OBDII Code P0715 Subaru - Torque Converter Turbine Speed Sensor Circuit Malfunction - AutoCodes.com — P0715 Subaru Code - Torque Converter Turbine Speed Sensor Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P0715 Subaru?

Faulty Transmission Speed Sensor
Transmission Speed Sensor harness is open or shorted
Transmission Speed Sensor circuit poor electrical connection

How to Fix the DTC P0715 Subaru?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0715 Subaru 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.

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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 P0715 Subaru Code

1. What are the common symptoms of OBDII code P0715 in a Subaru related to the Torque Converter Turbine Speed Sensor Circuit Malfunction?

- Common symptoms include erratic shifting, harsh shifting, transmission slipping, and the transmission going into "limp mode."

2. What are the possible causes of the P0715 code in a Subaru?

- The code can be triggered by a faulty torque converter turbine speed sensor, damaged wiring or connectors in the sensor circuit, or issues with the transmission control module.

3. How can I diagnose the P0715 code in my Subaru?

- Diagnosis typically involves using a scan tool to read the code, checking the torque converter turbine speed sensor for proper operation, inspecting the wiring and connectors for damage, and testing the transmission control module.

4. Can I continue driving my Subaru with the P0715 code present?

- It is not recommended to drive your vehicle with the P0715 code, as it can lead to further damage to the transmission and potentially unsafe driving conditions.

5. How can I repair the Torque Converter Turbine Speed Sensor Circuit Malfunction in my Subaru?

- Repair options include replacing the torque converter turbine speed sensor, repairing or replacing damaged wiring or connectors, and resetting the trouble code with a scan tool.

6. Is it possible for a dirty transmission fluid to trigger the P0715 code in a Subaru?

- Yes, contaminated or dirty transmission fluid can affect the sensor's readings and potentially trigger the P0715 code. Regular transmission fluid maintenance is important to prevent such issues.

7. How long does it typically take to repair the P0715 code in a Subaru?

- The repair time can vary based on the exact cause of the code, but it can usually be resolved within a few hours to a day by a qualified mechanic.

8. Are there any preventive maintenance steps I can take to avoid the P0715 code in my Subaru?

- Regularly servicing the transmission, checking for any signs of fluid leaks, and addressing any transmission issues promptly can help prevent the occurrence of the P0715 code.

9. Can a DIY enthusiast with some automotive experience repair the P0715 code in a Subaru?

- While some individuals with automotive experience may be able to diagnose and repair the issue, troubleshooting transmission-related codes like P0715 often require specialized tools and expertise, so it's recommended to consult a professional mechanic.

10. Will resetting the trouble code with a scan tool permanently fix the P0715 issue in my Subaru?

- Simply resetting the code may temporarily clear the warning light, but if the underlying issue causing the P0715 code is not addressed, the problem is likely to reoccur.