Engine-Codes.com
Engine-Codes – Scion – P0116 Scion

P0116 Scion Code - Engine Coolant Temperature Circuit Range / Performance Problem

Quick Answer

The P0116 Scion code indicates that there is a problem with the engine coolant temperature circuit, specifically related to its range or performance. Common causes include Faulty engine coolant temperature sensor, Damaged wiring or connectors in the coolant temperature circuit, Malfunctioning ECM. 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 Scion indicates Engine Coolant Temperature Circuit Range / Performance Problem.
Common causes
Common causes include Faulty engine coolant temperature sensor, Damaged wiring or connectors in the coolant temperature circuit, Malfunctioning ECM.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0116 Scion Description

The P0116 Scion code indicates that there is a problem with the engine coolant temperature circuit, specifically related to its range or performance. The engine coolant temperature sensor is responsible for monitoring the temperature of the engine coolant and sending this information to the engine control module (ECM). The ECM uses this data to adjust various engine parameters such as fuel injection timing and ignition timing to ensure optimal performance and efficiency.

OBDII Code P0116 Scion - Engine Coolant Temperature Circuit Range / Performance Problem
P0116 Scion Code - Engine Coolant Temperature Circuit Range / Performance Problem

Common Causes of P0116 Scion

  1. Faulty engine coolant temperature sensor.
  2. Damaged wiring or connectors in the coolant temperature circuit.
  3. Malfunctioning ECM.
  4. Low coolant level.
  5. Air pockets in the cooling system.

Symptoms of P0116 Scion

  1. Check engine light illuminated on the dashboard.
  2. Inaccurate temperature gauge readings.
  3. Poor fuel economy.
  4. Engine overheating.
  5. Rough idling or stalling.

How to Fix P0116 Scion

  1. Begin by diagnosing the issue using a scan tool to retrieve the specific trouble code and perform a visual inspection of the coolant temperature sensor, wiring, and connectors.
  2. Test the engine coolant temperature sensor using a multimeter to determine if it is providing accurate readings.
  3. Check the coolant level and bleed the cooling system to remove any air pockets that may be affecting sensor readings.
  4. Replace the engine coolant temperature sensor if it is found to be faulty, ensuring proper installation and connection.
  5. Clear the trouble code from the ECM's memory and test drive the vehicle to verify that the issue has been resolved.

Cost to Fix P0116 Scion

The typical repair costs for addressing a P0116 Scion code can range from $100 to $300, including parts and labor. However, it is important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Auto repair shops commonly charge between $80 and $150 per hour for labor, with rates potentially higher in metropolitan areas or at dealerships, and lower at independent shops. It is recommended to inquire about local rates for a more accurate estimate.

What does this mean?

Tech Notes for P0116 Scion

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.

Need more information about the P0116 Scion code?

Need more information on how to fix the P0116 Scion code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0116 Scion code diagnosed by a professional: Find a repair shop in your area

Information for Specific Scion Models

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 P0116 Scion Code

1. What does the OBDII code P0116 mean on a Scion?

P0116 indicates a problem with the Engine Coolant Temperature (ECT) sensor, where the sensor's readings are outside the expected range during engine operation.

2. What are the common symptoms of code P0116 in a Scion?

Symptoms may include difficulty starting the engine, poor fuel economy, rough idling, an overheating engine, or the check engine light turning on.

3. What causes the P0116 code to appear in a Scion?

Common causes include a faulty ECT sensor, wiring or connector issues, a stuck thermostat, low coolant levels, or issues with the engine control module (ECM).

4. Can I drive my Scion with a P0116 code?

While it may be possible to drive, it’s not recommended since the engine may overheat or run inefficiently, potentially causing further damage.

5. How do I fix the P0116 code on my Scion?

Repairs may include replacing the ECT sensor, checking and repairing wiring or connectors, replacing a stuck thermostat, or refilling the coolant to the proper level.

6. How do I diagnose the P0116 code on a Scion?

Start by checking the coolant level, inspecting the ECT sensor and its wiring, and using a scan tool to check the temperature readings from the sensor compared to actual coolant temperature.

7. Can a low coolant level trigger the P0116 code in a Scion?

Yes, low coolant levels can cause inaccurate temperature readings, leading to the P0116 code.

8. How much does it cost to repair a P0116 code on a Scion?

Repair costs vary but typically range from $50 to $150 for parts like an ECT sensor or thermostat, plus labor costs if performed by a mechanic.

9. Can a faulty thermostat cause the P0116 code in a Scion?

Yes, a thermostat stuck open or closed can lead to abnormal engine temperatures, triggering the P0116 code.

10. How can I prevent the P0116 code from appearing in my Scion?

Regular maintenance, such as checking coolant levels, inspecting the cooling system, and replacing worn components like the thermostat or ECT sensor, can help prevent the P0116 code.

Discuss the causes and fixes for P0116 Scion OBDII Code

Submit a New Comment

Code P0116 Scion comments

No comments found for this page.