AutoCodes – Lexus – P0711 Lexus

P0711 Lexus Code - Transmission Fluid Temperature Sensor 'A' Range Performance

Quick Answer

The Automatic Transmission Fluid (ATF) Temperature Sensor converts the fluid temperature into a resistance value for use by the Engine Control Module (ECM). Common causes include Faulty Automatic Transmission Fluid (ATF) Temperature Sensor, Automatic Transmission Fluid Temperature Sensor harness is open or shorted, Automatic Transmission Fluid Temperature 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: P0711 Lexus indicates Transmission Fluid Temperature Sensor 'A' Range Performance.
Common causes: Common causes include Faulty Automatic Transmission Fluid (ATF) Temperature Sensor, Automatic Transmission Fluid Temperature Sensor harness is open or shorted, Automatic Transmission Fluid Temperature 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 5,529

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 Sep 11, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
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Code P0711 Lexus Description

The Automatic Transmission Fluid (ATF) Temperature Sensor converts the fluid temperature into a resistance value for use by the Engine Control Module (ECM). The ECM applies a voltage to the temperature sensor. The sensor resistance changes with the ATF temperature. As the temperature becomes higher, the sensor resistance decreases. One terminal of the sensor is grounded so that the sensor resistance decreases, and the voltage goes down as the temperature increases. The ECM calculates the fluid temperature based on the voltage signal.
This Diagnostic Trouble Code (DTC) indicates a problem with output signals from the ATF temperature sensor and that the sensor itself is defective.
After running the vehicle for a certain period, the ATF temperature should increase. If the ATF temperature is below 20°C (68°F) after running the vehicle for a certain period, the ECM interprets this as a fault, turns on the MIL, and stores the DTC.

OBDII Code P0711 Lexus - Transmission Fluid Temperature Sensor 'A' Range Performance - AutoCodes.com — P0711 Lexus Code - Transmission Fluid Temperature Sensor 'A' Range Performance

What does this mean?

What are the Possible Causes of the DTC P0711 Lexus?

Faulty Automatic Transmission Fluid (ATF) Temperature Sensor
Automatic Transmission Fluid Temperature Sensor harness is open or shorted
Automatic Transmission Fluid Temperature Sensor circuit poor electrical connection

How to Fix the DTC P0711 Lexus?

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 P0711 Lexus 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.