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P0713 OBD2: Transmission Fluid Temperature Sensor "A" Circuit High

P0713 OBD2: Transmission Fluid Temperature Sensor “A” Circuit High

What Does the P0713 Code Mean?

OBD-II Code P0713 is defined as a Transmission Fluid Temperature Sensor “A” Circuit High. This code indicates that the engine control module (PCM) has detected an incorrect signal from the Transmission Fluid Temperature Sensor, which is responsible for monitoring the temperature of the transmission fluid.

What Causes the P0713 Code?

The P0713 code can be triggered by several issues, including:

  • Failure of the Transmission Fluid Temperature Sensor
  • Powertrain Control Module (PCM) failure
  • Transmission Control Module (TCM) failure
  • Wiring issues related to the sensor

What Are the Symptoms of the P0713 Code?

Drivers may experience a range of symptoms when the P0713 code is present, such as:

  • Improper shifting of the transmission
  • Illumination of the transmission temperature warning light on the dashboard

How Serious Is the P0713 Code?

The P0713 code is considered urgent because it indicates a significant malfunction that can lead to severe damage to the vehicle’s transmission or pose risks to driver and passenger safety. Immediate action is necessary to avoid further complications.

How to Diagnose the P0713 Code

To diagnose the P0713 code, a mechanic should follow a comprehensive diagnostic routine that includes:

  1. Using an OBD-II scanner to confirm the presence of the code
  2. Inspecting the Transmission Fluid Temperature Sensor and its wiring
  3. Testing the sensor and checking for PCM and TCM functionality

Common Repairs for the P0713 Code

Common repairs that may be necessary to fix the P0713 code include:

  • Replacing the Transmission Fluid Temperature Sensor
  • Repairing or replacing damaged wiring
  • Addressing any PCM or TCM failures

How Much Does It Cost to Fix the P0713 Code?

The cost to fix the P0713 code can vary widely depending on the underlying issue. Generally, repairs can range from $100 for simple wiring repairs to upwards of $1,000 for a PCM replacement.

Can I Fix the P0713 Code Myself?

While some car owners may feel comfortable performing basic diagnostic checks or replacing the Transmission Fluid Temperature Sensor, it is crucial to understand that diagnosing and repairing transmission-related issues often requires specialized knowledge and tools. It is advisable to consult a professional mechanic for a thorough diagnosis and repair.

About JC Landry

JC spent 15+ years as a certified Master Mechanic before trading the shop for the keyboard. He's worked across dealerships, owned and operated his own independent garage, and consulted on automotive trade school curricula, reviewing technical textbooks used in vocational programs. He now serves as Editor-in-Chief at eManualOnline.com, where he oversees the platform's technical content. He's one of the few voices in automotive publishing who has actually turned wrenches professionally on the vehicles he covers. He didn't learn automotive repair to write about it. He learned to write after spending over a decade doing it.

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