AutoCodes – Toyota – P0117 2016 Toyota RAV4

P0117 2016 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 2016 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.

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Code Popularity 859

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 P0117 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 P0117 2016 Toyota RAV4 - Engine Coolant Temperature Circuit Low Input - AutoCodes.com — P0117 2016 Toyota RAV4 Code - Engine Coolant Temperature Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0117 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 P0117 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 P0117 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.

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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 P0117 2016 Toyota RAV4 Code

1. What are the common symptoms of OBDII code P0117 in a 2016 Toyota RAV4?

The common symptoms of code P0117 in a 2016 Toyota RAV4 include a decrease in fuel efficiency, engine overheating, rough idling, and the illumination of the Check Engine Light.

2. What does the OBDII code P0117 "Engine Coolant Temperature Circuit Low Input" mean in a 2016 Toyota RAV4?

Code P0117 indicates that the Engine Control Module (ECM) has detected a lower than normal voltage signal from the Engine Coolant Temperature (ECT) sensor.

3. What are the possible causes of code P0117 in a 2016 Toyota RAV4?

Possible causes of code P0117 in a 2016 Toyota RAV4 include a faulty ECT sensor, a wiring issue in the ECT circuit, low engine coolant levels, or a malfunctioning ECM.

4. How can I diagnose the OBDII code P0117 in my 2016 Toyota RAV4?

To diagnose code P0117, you can start by visually inspecting the ECT sensor and its wiring for any damage. You can also use a multimeter to test the ECT sensor's resistance and voltage output.

5. Can I still drive my 2016 Toyota RAV4 with OBDII code P0117?

It is not recommended to drive your 2016 Toyota RAV4 with code P0117, as it can lead to engine overheating and potential damage. It is best to address the issue promptly.

6. How do I repair OBDII code P0117 in a 2016 Toyota RAV4?

Repairing code P0117 may involve replacing the ECT sensor, repairing any damaged wiring, topping up engine coolant levels, or resetting the ECM after fixing the issue.

7. Is it possible for a loose electrical connection to trigger code P0117 in a 2016 Toyota RAV4?

Yes, a loose or poor electrical connection in the ECT circuit can cause code P0117 to be triggered in a 2016 Toyota RAV4.

8. Will resetting the Check Engine Light make OBDII code P0117 disappear permanently in a 2016 Toyota RAV4?

Resetting the Check Engine Light may temporarily clear the code, but if the underlying issue causing code P0117 is not resolved, the light is likely to come back on.

9. Can extreme weather conditions affect the ECT sensor and trigger code P0117 in a 2016 Toyota RAV4?

Extreme weather conditions such as extreme cold or heat can potentially affect the ECT sensor's performance and trigger code P0117 in a 2016 Toyota RAV4.

10. How much does it typically cost to repair OBDII code P0117 in a 2016 Toyota RAV4?

The cost of repairing code P0117 in a 2016 Toyota RAV4 can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.