P0116 2015 GMC Sierra Code - Engine Coolant Temperature Sensor Performance
Quick Answer
The Engine Coolant Temperature (ECT) sensor is a variable resistor that measures the temperature of the engine coolant. Common causes include Low engine coolant level, Leaking or stuck open 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
- P0116 2015 GMC Sierra indicates Engine Coolant Temperature Sensor Performance.
- Common causes
- Common causes include Low engine coolant level, Leaking or stuck open 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.
Code P0116 2015 GMC Sierra Description
The ECM uses this high side coolant rationality diagnostic to determine if the input from the ECT sensor is skewed warmer than normal. The internal clock of the ECM will record the amount of time the ignition is OFF. If the calibrated ignition OFF time is met at start-up, the ECM will compare the temperature difference between the ECT and the intake air temperature (IAT) to determine if the temperatures are within an acceptable operating range of each other. The Diagnostic Trouble Code (DTC) will be set when the ECM detects a temperature difference at power-up that indicates that the ECT sensor is 30° C (86° F) warmer than the IAT sensor for less than 1 s.
What are the Possible Causes of the DTC P0116 2015 GMC Sierra?
- Low engine coolant level
- Leaking or stuck open thermostat
- Faulty Engine Coolant Temperature (ECT) sensor
- Engine Coolant Temperature sensor harness is open or shorted
- Engine Coolant Temperature sensor electrical circuit poor connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0116 2015 GMC Sierra?
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 P0116 2015 GMC Sierra 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 P0116 2015 GMC Sierra code?
Need more information on how to fix the P0116 2015 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
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Frequently Asked Questions about P0116 2015 GMC Sierra Code
1. What are the common symptoms of OBDII code P0116 on a 2015 GMC Sierra?
The common symptoms of code P0116 include issues such as poor fuel economy, rough idling, engine overheating, and a possible decrease in engine performance.
2. What does the OBDII code P0116 on a 2015 GMC Sierra indicate?
Code P0116 indicates a problem with the Engine Coolant Temperature (ECT) sensor, specifically related to its performance.
3. What are the possible causes of OBDII code P0116 on a 2015 GMC Sierra?
The possible causes of code P0116 can include a faulty ECT sensor, a damaged sensor connector or wiring, low engine coolant levels, or issues with the engine's cooling system.
4. How can I diagnose the issue causing OBDII code P0116 on my 2015 GMC Sierra?
You can diagnose the issue causing code P0116 by using an OBDII scanner to read the code, inspecting the ECT sensor and its connections for any visible damage, and checking the engine coolant level and system for any leaks or malfunctions.
5. Can I continue driving my 2015 GMC Sierra with OBDII code P0116?
It is not recommended to continue driving your vehicle with code P0116, as it can lead to potential engine damage or other issues. It is best to address the problem promptly.
6. How can I repair OBDII code P0116 on my 2015 GMC Sierra?
To repair code P0116, you may need to replace the ECT sensor if it is faulty, repair any damaged wiring or connectors, ensure proper engine coolant levels, and address any cooling system issues.
7. Will resetting the OBDII code P0116 on my 2015 GMC Sierra solve the problem?
Resetting the code may temporarily clear the warning light, but if the underlying issue causing code P0116 is not addressed, the problem is likely to reoccur.
8. How much does it typically cost to repair OBDII code P0116 on a 2015 GMC Sierra?
The cost of repairing code P0116 can vary depending on the specific cause of the issue, but it may involve parts and labor costs ranging from $100 to $300 or more.
9. Can a DIY enthusiast fix OBDII code P0116 on a 2015 GMC Sierra?
If you have the necessary tools and expertise, you may be able to address code P0116 yourself by following repair guides and tutorials. However, professional assistance is recommended if you are unsure.
10. How long does it take to repair OBDII code P0116 on a 2015 GMC Sierra?
The repair time for code P0116 can vary based on the complexity of the issue and your experience level. It may take anywhere from 30 minutes to a few hours to diagnose and fix the problem.
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