AutoCodes – Toyota – P0115 2016 Toyota RAV4

P0115 2016 Toyota RAV4 Code - Engine Coolant Temperature Circuit Malfunction

Quick Answer

The engine coolant temperature sensor is used to monitor the engine coolant temperature. Common causes include Low engine coolant level, Faulty Engine Coolant Thermostat, Faulty Engine Coolant Temperature (ECT) sensor. 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: P0115 2016 Toyota RAV4 indicates Engine Coolant Temperature Circuit Malfunction.
Common causes: Common causes include Low engine coolant level, Faulty Engine Coolant Thermostat, Faulty Engine Coolant Temperature (ECT) sensor.
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 331

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 23, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0115 2016 Toyota RAV4 Description

The engine coolant temperature sensor is used to monitor the engine coolant temperature. The engine coolant temperature sensor has a thermistor with a resistance that varies according to the temperature of the engine coolant. When the coolant temperature is low, the resistance in the thermistor increases. When the temperature is high, the resistance drops. These variations in resistance are reflected in the output voltage from the sensor. The Engine Control Module (ECM) monitors the sensor voltage and uses this value to calculate the engine coolant temperature. When the sensor output voltage deviates from the normal operating range, the ECM interprets this as a fault in the engine coolant temperature sensor circuit and stores a Diagnostic Trouble Code (DTC).

OBDII Code P0115 2016 Toyota RAV4 - Engine Coolant Temperature Circuit Malfunction - AutoCodes.com — P0115 2016 Toyota RAV4 Code - Engine Coolant Temperature Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P0115 2016 Toyota RAV4?

Low engine coolant level
Faulty Engine Coolant Thermostat
Faulty Engine Coolant Temperature (ECT) sensor
Engine Coolant Temperature sensor harness is open or shorted
Engine Coolant Temperature sensor circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0115 2016 Toyota RAV4?

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

Start by checking the engine coolant level at the coolant reservoir, a low level may indicate a coolant leak. If the coolant level is correct, you should replace the Engine Coolant Temperature (ECT) sensor to fix the problem. The Engine Coolant Thermostat must be replaced every time there is a repair with the coolant system.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0115 2016 Toyota RAV4 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 P0115 2016 Toyota RAV4 code?

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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 P0115 2016 Toyota RAV4 Code

1. What are the common symptoms of OBDII code P0115 in a 2016 Toyota RAV4?

The common symptoms of code P0115 include the engine running rough, poor fuel economy, overheating, and the Check Engine light illuminating on the dashboard.

2. What can cause the Engine Coolant Temperature Circuit Malfunction in a 2016 Toyota RAV4?

The main causes of P0115 in a 2016 Toyota RAV4 can be a faulty engine coolant temperature sensor, a wiring issue in the coolant temperature circuit, or a problem with the engine control module (ECM).

3. How can I diagnose the P0115 code in my 2016 Toyota RAV4?

To diagnose the P0115 code, you can use an OBDII scanner to read the code and check the engine coolant temperature sensor's resistance with a multimeter to see if it's functioning properly.

4. What are some repair tips for fixing the Engine Coolant Temperature Circuit Malfunction in a 2016 Toyota RAV4?

Some repair tips for addressing P0115 include checking and replacing the engine coolant temperature sensor, inspecting the wiring for any damage or loose connections, and resetting the code to see if it reoccurs.

5. Can driving with the P0115 code in a 2016 Toyota RAV4 cause further damage?

Continuing to drive with the P0115 code can potentially lead to engine overheating, poor performance, and increased fuel consumption, so it's best to address the issue promptly to prevent any further damage.

6. How much does it typically cost to repair the Engine Coolant Temperature Circuit Malfunction in a 2016 Toyota RAV4?

The cost of repairing P0115 can vary depending on the exact cause of the issue, but it can range from around $100 to $300 for parts and labor at a repair shop.

7. Is it safe to continue driving my 2016 Toyota RAV4 with the Check Engine light on due to code P0115?

While you may be able to drive the vehicle with the Check Engine light on, it's not recommended as it can lead to potential engine issues and decreased fuel efficiency. It's best to address the problem as soon as possible.

8. How long does it take to repair the Engine Coolant Temperature Circuit Malfunction in a 2016 Toyota RAV4?

The repair time for P0115 can vary based on the exact cause of the issue and the availability of parts, but it typically takes a few hours to diagnose and fix the problem.

9. Can a DIY enthusiast fix the P0115 code in a 2016 Toyota RAV4?

If you have experience with automotive repairs and the necessary tools, you may be able to address the P0115 code yourself by following repair manuals or online guides. However, if you're unsure, it's best to seek professional help.

10. Will resetting the Check Engine light make the P0115 code disappear permanently in a 2016 Toyota RAV4?

Resetting the Check Engine light may temporarily turn it off, but if the underlying issue causing the P0115 code is not fixed, the light is likely to come back on. It's important to diagnose and address the root cause of the problem.