AutoCodes – Toyota – P0118 2008 Toyota Camry

P0118 2008 Toyota Camry Code - Engine Coolant Temperature Circuit High Input

Quick Answer

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. Common causes include Low engine coolant level, Faulty Engine Coolant Temperature (ECT) sensor, Faulty engine coolant thermostat. 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 2008 Toyota Camry indicates Engine Coolant Temperature Circuit High Input.
Common causes: Common causes include Low engine coolant level, Faulty Engine Coolant Temperature (ECT) sensor, Faulty engine coolant thermostat.
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 5,930

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 Jun 14, 2020

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

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

Code P0118 2008 Toyota Camry 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.

OBDII Code P0118 2008 Toyota Camry - Engine Coolant Temperature Circuit High Input - AutoCodes.com — P0118 2008 Toyota Camry Code - Engine Coolant Temperature Circuit High Input

What does this mean?

What are the Possible Causes of the DTC P0118 2008 Toyota Camry?

Low engine coolant level
Faulty Engine Coolant Temperature (ECT) sensor
Faulty engine coolant thermostat
Engine Coolant Temperature (ECT) sensor harness is open or shorted
Engine Coolant Temperature (ECT) sensor electrical circuit poor connection

How to Fix the DTC P0118 2008 Toyota Camry?

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 P0118 2008 Toyota Camry 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 2008 Toyota Camry code?

Need more information on how to fix the P0118 2008 Toyota Camry code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0118 2008 Toyota Camry 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 2008 Toyota Camry Code

1. What are the common symptoms of OBDII code P0118 in a 2008 Toyota Camry?

The common symptoms of code P0118 in a 2008 Toyota Camry include engine overheating, inaccurate temperature gauge readings, and potential decrease in fuel efficiency.

2. What does OBDII code P0118 indicate in a 2008 Toyota Camry?

Code P0118 in a 2008 Toyota Camry indicates a high input signal from the engine coolant temperature (ECT) sensor to the engine control module (ECM).

3. What are the possible causes of OBDII code P0118 in a 2008 Toyota Camry?

Possible causes of code P0118 in a 2008 Toyota Camry include a faulty ECT sensor, a short or open circuit in the sensor wiring, a malfunctioning ECM, or low coolant levels.

4. How can I diagnose the issue causing OBDII code P0118 in my 2008 Toyota Camry?

To diagnose the issue causing code P0118 in a 2008 Toyota Camry, you can start by checking the ECT sensor's wiring for any signs of damage or corrosion, testing the sensor's resistance, and ensuring the coolant level is adequate.

5. Can I continue driving my 2008 Toyota Camry with OBDII code P0118?

It is not recommended to continue driving your 2008 Toyota Camry with code P0118 as it can lead to engine overheating and potential damage. It is best to address the issue promptly.

6. How do I repair OBDII code P0118 in a 2008 Toyota Camry?

To repair code P0118 in a 2008 Toyota Camry, you may need to replace the faulty ECT sensor, repair any damaged wiring, or reset the ECM after addressing the underlying issue.

7. Will resetting the OBDII code P0118 in my 2008 Toyota Camry make the issue go away?

Resetting the code P0118 in a 2008 Toyota Camry may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear.

8. Can a DIY enthusiast fix OBDII code P0118 in a 2008 Toyota Camry?

A DIY enthusiast with automotive repair experience may be able to diagnose and fix code P0118 in a 2008 Toyota Camry by following repair guides and using the necessary tools.

9. How much does it cost to repair OBDII code P0118 in a 2008 Toyota Camry at a mechanic?

The cost to repair code P0118 in a 2008 Toyota Camry at a mechanic can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

10. How often does OBDII code P0118 occur in a 2008 Toyota Camry?

Code P0118 in a 2008 Toyota Camry can occur due to various reasons, but it is a relatively common issue that may arise as the vehicle ages or due to sensor malfunctions.