AutoCodes – Toyota – P0117 2015 Toyota RAV4

P0117 2015 Toyota RAV4 Code - Engine Coolant Temperature Circuit Low Input

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: P0117 2015 Toyota RAV4 indicates Engine Coolant Temperature Circuit Low Input.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 3,638

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0117 2015 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 P0117 2015 Toyota RAV4 - Engine Coolant Temperature Circuit Low Input - AutoCodes.com — P0117 2015 Toyota RAV4 Code - Engine Coolant Temperature Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0117 2015 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 P0117 2015 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 P0117 2015 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 P0117 2015 Toyota RAV4 code?

Need more information on how to fix the P0117 2015 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0117 2015 Toyota RAV4 code diagnosed by a professional: Find a repair shop in your area

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 P0117 2015 Toyota RAV4 Code

1. What are the common symptoms of OBDII code P0117 in a 2015 Toyota RAV4?

The common symptoms of P0117 may include a temperature gauge reading lower than normal, engine overheating, poor fuel economy, and potential issues with the vehicle's heater.

2. What causes the OBDII code P0117 in a 2015 Toyota RAV4?

The P0117 code in a 2015 Toyota RAV4 is typically triggered by a malfunction in the engine coolant temperature (ECT) sensor or its circuit, leading to a low input signal to the vehicle's engine control module (ECM).

3. How can I diagnose the OBDII code P0117 in my 2015 Toyota RAV4?

Diagnosing P0117 involves checking the ECT sensor and its wiring for any damage or corrosion, testing the sensor's resistance, and verifying proper voltage signals using a multimeter or scan tool.

4. Can a faulty thermostat cause the OBDII code P0117 in a 2015 Toyota RAV4?

Yes, a faulty thermostat can potentially cause the P0117 code by affecting the engine coolant temperature readings. It's recommended to inspect and test the thermostat along with the ECT sensor when troubleshooting this issue.

5. How do I repair the Engine Coolant Temperature Circuit Low Input issue in my 2015 Toyota RAV4?

Repairing P0117 often involves replacing the faulty ECT sensor, repairing any damaged wiring or connectors, and ensuring proper connections. Clear the trouble code with a scan tool after completing the repairs.

6. Is it safe to continue driving my 2015 Toyota RAV4 with the P0117 trouble code?

It's not recommended to drive your vehicle with the P0117 code unresolved, as inaccurate engine temperature readings can lead to potential engine damage or overheating. Address the issue promptly to prevent further problems.

7. Can a dirty or low coolant level trigger the OBDII code P0117 in a 2015 Toyota RAV4?

While low coolant levels or dirty coolant can affect engine temperature, they are not direct causes of the P0117 code. It's still important to maintain proper coolant levels and quality for overall engine health.

8. Will disconnecting the battery reset the OBDII code P0117 in my 2015 Toyota RAV4?

Disconnecting the battery may temporarily clear the trouble code, but it's not a reliable solution. The underlying issue causing the P0117 code needs to be diagnosed and repaired to prevent it from reoccurring.

9. How much does it typically cost to fix the P0117 code in a 2015 Toyota RAV4?

The cost of fixing the P0117 code can vary depending on the exact cause of the issue, labor rates, and parts needed. It's advisable to consult with a mechanic or dealership for an accurate estimate based on your specific situation.

10. Can I use a generic OBDII scanner to diagnose the P0117 code in my 2015 Toyota RAV4?

Yes, a generic OBDII scanner can be used to retrieve and clear the P0117 trouble code. However, for more in-depth diagnostics and troubleshooting, a professional-grade scan tool may be necessary to access specific data and live sensor readings.