AutoCodes – Chevrolet – P0115 Chevrolet

P0115 Chevrolet Code - Engine Coolant Temperature Sensor Circuit

Quick Answer

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. Common causes include Faulty Engine Coolant Temperature Sensor, Engine Coolant Temperature Sensor harness is open or shorted, Engine Coolant 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: P0115 Chevrolet indicates Engine Coolant Temperature Sensor Circuit.
Common causes: Common causes include Faulty Engine Coolant Temperature Sensor, Engine Coolant Temperature Sensor harness is open or shorted, Engine Coolant 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 3,038

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 Jul 19, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0115 Chevrolet 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 which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases. The Diagnostic Trouble Code (DTC) will set when the Engine Coolant Temperature sensor signal is not to factory specifications.

OBDII Code P0115 Chevrolet - Engine Coolant Temperature Sensor Circuit - AutoCodes.com — P0115 Chevrolet Code - Engine Coolant Temperature Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC P0115 Chevrolet?

Faulty Engine Coolant Temperature 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 Chevrolet?

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 P0115 Chevrolet 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 Chevrolet code?

Need more information on how to fix the P0115 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0115 Chevrolet 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 P0115 Chevrolet Code

1. What are the common symptoms of OBDII code P0115 in a Chevrolet related to the Engine Coolant Temperature Sensor Circuit?

- Common symptoms include issues with engine starting, poor fuel economy, overheating, rough idling, and the check engine light illuminating.

2. What are the possible causes of OBDII code P0115 in a Chevrolet?

- Possible causes include a faulty engine coolant temperature sensor, damaged wiring or connectors, low coolant levels, or issues with the engine control module.

3. How can I diagnose the Engine Coolant Temperature Sensor Circuit issue causing OBDII code P0115 in my Chevrolet?

- You can diagnose the issue by checking the coolant level, inspecting the sensor and its wiring for damage, and using a multimeter to test the sensor's resistance.

4. What are some repair tips for fixing OBDII code P0115 in a Chevrolet?

- Repair tips may include replacing the engine coolant temperature sensor, repairing damaged wiring or connectors, ensuring proper coolant levels, and clearing the trouble code.

5. Can I drive my Chevrolet with OBDII code P0115 related to the Engine Coolant Temperature Sensor Circuit?

- It is not recommended to drive your Chevrolet with this issue as it can lead to engine damage, overheating, and poor performance.

6. How much does it typically cost to repair OBDII code P0115 in a Chevrolet?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

7. Will resetting the check engine light resolve OBDII code P0115 in a Chevrolet?

- Resetting the check engine light may temporarily turn it off, but it will not fix the underlying issue causing the OBDII code P0115.

8. What happens if OBDII code P0115 in a Chevrolet is ignored?

- Ignoring this code can lead to engine overheating, reduced fuel efficiency, potential engine damage, and ultimately more costly repairs.

9. Can a DIY enthusiast repair OBDII code P0115 in a Chevrolet?

- Depending on your skill level and access to tools, some DIY enthusiasts may be able to replace the engine coolant temperature sensor or check for wiring issues.

10. Is it necessary to visit a mechanic for OBDII code P0115 in a Chevrolet, or can I fix it myself?

- While some simple repairs can be done by DIYers, it is recommended to consult a mechanic for proper diagnosis and repair of OBDII code P0115 to ensure the issue is resolved correctly.