AutoCodes – Toyota – P0118 2014 Toyota RAV4

P0118 2014 Toyota RAV4 Code - Engine Coolant Temperature Circuit High Input

Quick Answer

The engine coolant temperature sensor is used to monitor 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: P0118 2014 Toyota RAV4 indicates Engine Coolant Temperature Circuit High 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.

Save to My Repairs Step-by-Step Diagnostic Guide My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 412

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 Aug 23, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0118 2014 Toyota RAV4 Description

The engine coolant temperature sensor is used to monitor the engine coolant temperature. The engine coolant temperature sensor has a thermistor with a resistance that varies according to the temperature of the engine coolant. When the coolant temperature is low, the resistance in the thermistor increases. When the temperature is high, the resistance drops. These variations in resistance are reflected in the output voltage from the sensor. The Engine Control Module (ECM) monitors the sensor voltage and uses this value to calculate the engine coolant temperature. When the sensor output voltage deviates from the normal operating range, the ECM interprets this as a fault in the engine coolant temperature sensor circuit and stores a Diagnostic Trouble Code (DTC).

OBDII Code P0118 2014 Toyota RAV4 - Engine Coolant Temperature Circuit High Input - AutoCodes.com — P0118 2014 Toyota RAV4 Code - Engine Coolant Temperature Circuit High Input

What does this mean?

What are the Possible Causes of the DTC P0118 2014 Toyota RAV4?

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
Faulty Engine Control Module (ECM)

How to Fix the DTC P0118 2014 Toyota RAV4?

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 does this mean?

Code Tech Notes

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0118 2014 Toyota RAV4 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 P0118 2014 Toyota RAV4 code?

Need more information on how to fix the P0118 2014 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0118 2014 Toyota RAV4 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 P0118 2014 Toyota RAV4 Code

1. What are the common symptoms of the OBDII code P0118 in a 2014 Toyota RAV4?

The common symptoms of code P0118 in a 2014 Toyota RAV4 include engine overheating, inaccurate temperature gauge readings, and potential issues with the vehicle's fuel efficiency.

2. What are the possible causes of the P0118 code in a 2014 Toyota RAV4?

The P0118 code in a 2014 Toyota RAV4 is often triggered by a faulty engine coolant temperature sensor, a malfunctioning thermostat, or problems with the vehicle's wiring or connectors.

3. How serious is the P0118 engine coolant temperature circuit high input code in a 2014 Toyota RAV4?

While the P0118 code may not cause immediate harm to your vehicle, ignoring it can lead to engine overheating, potential damage, and poor performance. It's important to address this issue promptly.

4. Can I continue to drive my 2014 Toyota RAV4 with the P0118 code active?

It is not recommended to continue driving your 2014 Toyota RAV4 with the P0118 code active, as it can result in engine overheating and potential damage. It's best to have the issue diagnosed and repaired as soon as possible.

5. How can I diagnose and repair the P0118 code in my 2014 Toyota RAV4?

Diagnosing the P0118 code involves checking the engine coolant temperature sensor, thermostat, and associated wiring for faults. Repair typically involves replacing the faulty sensor, thermostat, or repairing any damaged wiring.

6. Will resetting the OBDII system clear the P0118 code in my 2014 Toyota RAV4?

Resetting the OBDII system may temporarily clear the P0118 code, but if the underlying issue causing the high input circuit problem is not addressed, the code is likely to return. It's important to diagnose and fix the root cause.

7. Can a DIY enthusiast fix the P0118 code in a 2014 Toyota RAV4?

Depending on your skill level and experience with automotive repairs, you may be able to address the P0118 code yourself by replacing the engine coolant temperature sensor or thermostat. However, if you're unsure, it's best to consult a professional mechanic.

8. How much does it typically cost to repair the P0118 code in a 2014 Toyota RAV4?

The cost of repairing the P0118 code in a 2014 Toyota RAV4 can vary depending on the exact cause of the issue, labor costs, and parts needed. On average, the repair may range from $100 to $300, but prices can be higher if additional components need replacement.

9. Are there any preventative measures to avoid the P0118 code in a 2014 Toyota RAV4?

Regular maintenance, such as checking coolant levels, inspecting the cooling system components, and replacing the engine coolant temperature sensor at recommended intervals, can help prevent issues that trigger the P0118 code.

10. Will the P0118 code cause my 2014 Toyota RAV4 to fail an emissions test?

The P0118 code itself may not directly cause your 2014 Toyota RAV4 to fail an emissions test, but unresolved issues related to engine coolant temperature can affect overall vehicle performance and emissions. It's best to address the code before undergoing an emissions test.