AutoCodes – Hyundai – P0117 Hyundai

P0117 Hyundai Code - Engine Coolant Temperature Circuit Low Input

Quick Answer

The Engine Coolant Temperature (ECT) sensor is used to detect 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 Hyundai 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 26,153

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 Sep 07, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0117 Hyundai Description

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as the engine coolant temperature input. The sensor uses a thermistor that is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases. The Diagnostic Trouble Code (DTC) will be set when an excessively low voltage from the sensor is sent to ECM.

OBDII Code P0117 Hyundai - Engine Coolant Temperature Circuit Low Input - AutoCodes.com — P0117 Hyundai Code - Engine Coolant Temperature Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0117 Hyundai?

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

How to Fix the DTC P0117 Hyundai?

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 P0117 Hyundai 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 Hyundai code?

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

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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 Hyundai Code

1. What are the common symptoms of OBDII code P0117 in a Hyundai?

- Common symptoms include a fluctuating temperature gauge, poor fuel economy, engine overheating, and the check engine light being illuminated.

2. What are the possible causes of the P0117 code in a Hyundai?

- The code P0117 can be triggered by a faulty engine coolant temperature (ECT) sensor, a malfunctioning thermostat, low coolant levels, wiring issues, or a problem with the engine control module (ECM).

3. How can I diagnose the cause of the P0117 code in my Hyundai?

- Diagnose the code by checking the ECT sensor's resistance, inspecting the wiring for any damage or loose connections, testing the thermostat's functionality, and verifying the coolant level in the system.

4. Can I drive my Hyundai with the P0117 code present?

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

5. How can I repair the Engine Coolant Temperature Circuit Low Input issue in my Hyundai?

- Repair options include replacing the ECT sensor, fixing any wiring problems, ensuring proper coolant levels, replacing the thermostat if necessary, and resetting the ECM after repairs.

6. Will resetting the check engine light resolve the P0117 code in my Hyundai?

- Resetting the check engine light may temporarily clear the code, but it will reappear if the underlying issue causing the P0117 code is not fixed.

7. How much does it cost to fix the P0117 code in a Hyundai?

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

8. Can a DIY enthusiast repair the P0117 code in a Hyundai?

- DIY enthusiasts with automotive repair experience may be able to address the P0117 code by following repair guides and using the necessary tools. However, it is essential to have the proper knowledge and equipment to ensure a successful repair.

9. What happens if the P0117 code is ignored in a Hyundai?

- Ignoring the P0117 code can lead to potential engine damage, decreased fuel efficiency, and overheating issues, which may result in costly repairs down the line.

10. How often does the P0117 code occur in Hyundai vehicles?

- The P0117 code can occur in Hyundai vehicles due to various factors, such as sensor wear, wiring issues, or cooling system problems. Regular maintenance and prompt repairs can help prevent the code from reoccurring.