P1116 Code - Engine Coolant Temperature Sensor Out of Self-Test Range
Quick Answer
The P1116 trouble code indicates that the Engine Coolant Temperature Sensor is out of the self-test range. Common causes include Faulty Coolant Temperature Sensor: The sensor itself may be malfunctioning, providing incorrect readings to the ECM, Wiring Issues: Damaged or corroded wiring connecting the sensor to the ECM can lead to communication errors and trigger this code, Cooling System Problems: Issues such as low coolant levels, a faulty thermostat, or a malfunctioning cooling fan can impact the sensor's readings. 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
- P1116 indicates Engine Coolant Temperature Sensor Out of Self-Test Range.
- Common causes
- Common causes include Faulty Coolant Temperature Sensor: The sensor itself may be malfunctioning, providing incorrect readings to the ECM, Wiring Issues: Damaged or corroded wiring connecting the sensor to the ECM can lead to communication errors and trigger this code, Cooling System Problems: Issues such as low coolant levels, a faulty thermostat, or a malfunctioning cooling fan can impact the sensor's readings.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P1116 Description
The P1116 trouble code indicates that the Engine Coolant Temperature Sensor is out of the self-test range. This sensor is responsible for monitoring the temperature of the engine coolant and sending this information to the engine control module (ECM). When the sensor is out of range, it can lead to inaccurate temperature readings, which can affect the engine's performance and efficiency. This can result in issues such as poor fuel economy, rough idling, decreased engine power, and potential overheating if not addressed promptly.
Common Causes of P1116
- Faulty Coolant Temperature Sensor: The sensor itself may be malfunctioning, providing incorrect readings to the ECM.
- Wiring Issues: Damaged or corroded wiring connecting the sensor to the ECM can lead to communication errors and trigger this code.
- Cooling System Problems: Issues such as low coolant levels, a faulty thermostat, or a malfunctioning cooling fan can impact the sensor's readings.
- ECM Malfunction: In rare cases, a malfunctioning engine control module can misinterpret the sensor data and trigger this code.
Symptoms of P1116
- Check Engine Light: The most common symptom associated with this code is the illumination of the Check Engine Light on the dashboard.
- Inaccurate Temperature Readings: The temperature gauge on the dashboard may show incorrect readings, either too high or too low.
- Poor Fuel Economy: An out-of-range coolant temperature sensor can lead to inefficient fuel combustion, resulting in decreased fuel economy.
- Rough Idling: The engine may experience rough idling or stalling due to incorrect temperature readings affecting fuel delivery.
- Overheating: In severe cases, the engine may overheat due to the sensor providing inaccurate temperature information to the ECM.
How to Fix P1116
- Diagnose the Issue: Use a scan tool to read the trouble code and verify the Engine Coolant Temperature Sensor's readings.
- Inspect Sensor and Wiring: Check the sensor for any visible damage and inspect the wiring for any signs of wear or corrosion.
- Replace Coolant Temperature Sensor: If the sensor is faulty, replace it with a new one following manufacturer guidelines.
- Check Cooling System: Inspect the cooling system components, such as coolant levels, thermostat, and cooling fan, to ensure proper operation.
- Clear Codes and Test Drive: Clear the trouble code from the ECM, start the vehicle, and test drive to verify that the issue has been resolved.
Cost to Fix P1116
The cost of repairing a P1116 code related to the Engine Coolant Temperature Sensor can vary depending on the make and model of the vehicle, the location of the repair shop, and the specific parts needed. On average, the cost of replacing the sensor and addressing any related issues can range from $100 to $300 for parts and labor. It's recommended to contact local auto repair shops for a more accurate estimate based on your specific vehicle. Keep in mind that diagnosis time and labor rates can impact the overall cost of the repair.
Need more information about the P1116 code?
Need more information on how to fix the P1116 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1116 code diagnosed by a professional: Find a repair shop in your area
Code P1116 Information for Specific Makes
- P1116 Acura — Engine Coolant Temperature Sensor Performance Problem
- P1116 Audi — HO2S Sensor Heater Circuit Open Bank 1 Sensor 1
- P1116 BMW — Mass Or Volume Air Flow Circuit Range/Performance Problem Bank 2
- P1116 Buick — Engine Coolant Temperature Sensor Signal Unstable Or Intermittent
- P1116 Cadillac — Engine Coolant Temperature Sensor Signal Unstable Or Intermittent
- P1116 Chevrolet — Engine Coolant Temperature Sensor Signal Unstable Or Intermittent
- P1116 Ford — Engine Coolant Temperature Sensor is Out of Self-Test Range
- P1116 GMC — Engine Coolant Temperature Sensor Signal Unstable Or Intermittent
- P1116 Honda — Engine Coolant Temperature Sensor Performance Problem
- P1116 Hyundai — Boost Pressure Sensor Malfunction
- P1116 Lexus — Coolant Temperature Sensor Circuit Stack for Coolant Heat Storage System
- P1116 Lincoln — Engine Coolant Temperature Sensor is Out of Self-Test Range
- P1116 Mazda — Engine Coolant Temperature Sensor is Out of Self-Test Range
- P1116 Mercury — Engine Coolant Temperature Sensor is Out of Self-Test Range
- P1116 MINI — Mass Or Volume Air Flow Circuit Range/Performance Problem Bank 2
- P1116 Scion — Coolant Temperature Sensor Circuit Stack for Coolant Heat Storage System
- P1116 Subaru — Engine Torque Control Cut Signal Circuit Low Input
- P1116 Suzuki — Engine Coolant Temperature Circuit Performance At Engine Soaking
- P1116 Toyota — Coolant Temperature Sensor Circuit Stack for Coolant Heat Storage System
- P1116 Volkswagen — HO2S Sensor Heater Circuit Open Bank 1 Sensor 1
Frequently Asked Questions about P1116 Code
1. What are the common symptoms of OBDII code P1116?
The common symptoms of OBDII code P1116 include erratic engine temperature readings, engine overheating, poor fuel efficiency, and potential stalling or rough idling.
2. What can cause the OBDII code P1116 to trigger?
The OBDII code P1116, indicating an Engine Coolant Temperature Sensor Out of Self-Test Range, can be triggered by a faulty engine coolant temperature sensor, wiring issues, or a malfunction in the engine control module.
3. How can I diagnose the cause of OBDII code P1116?
To diagnose the cause of OBDII code P1116, you can start by checking the engine coolant temperature sensor for proper operation, inspecting the wiring for any damage, and using a scan tool to monitor the sensor readings.
4. Can a faulty engine coolant temperature sensor be repaired or does it need to be replaced?
In most cases, a faulty engine coolant temperature sensor that triggers OBDII code P1116 will need to be replaced. Repairing the sensor is not recommended due to its critical role in the engine's performance and emissions control.
5. What are some repair tips for resolving OBDII code P1116?
Repair tips for addressing OBDII code P1116 include checking and replacing the engine coolant temperature sensor, ensuring proper wiring connections, clearing the fault code, and performing a test drive to verify the issue has been resolved.
6. Is it safe to continue driving with OBDII code P1116 present?
It is not recommended to continue driving with OBDII code P1116 present, as it can lead to engine overheating, poor performance, and potential damage to engine components. It is best to address the issue promptly.
7. Can OBDII code P1116 be triggered by a low coolant level?
While a low coolant level can potentially impact the engine's temperature readings, it is not a direct cause of OBDII code P1116. However, maintaining proper coolant levels is essential for overall engine health.
8. How long does it take to repair OBDII code P1116?
The time it takes to repair OBDII code P1116 can vary depending on the exact cause of the issue and the expertise of the person performing the repair. In general, it can take anywhere from 30 minutes to a few hours to diagnose and resolve the problem.
9. Can OBDII code P1116 be a recurring issue after repair?
If the root cause of OBDII code P1116, such as a faulty engine coolant temperature sensor, is not properly addressed during the repair, it can lead to a recurring issue. It is essential to diagnose the problem accurately and ensure a thorough repair to prevent recurrence.
10. Are there any preventive maintenance measures to avoid OBDII code P1116?
Regularly scheduled maintenance, such as checking coolant levels, inspecting the engine coolant temperature sensor, and addressing any wiring issues promptly, can help prevent OBDII code P1116 and other related engine performance problems.
Discuss the causes and fixes for P1116 OBDII Code
Code P1116 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.