AutoCodes – Scion – P0118 2005 Scion xB

P0118 2005 Scion xB 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 2005 Scion xB 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.

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Code Popularity 8,631

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
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0118 2005 Scion xB 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 2005 Scion xB - Engine Coolant Temperature Circuit High Input - AutoCodes.com — P0118 2005 Scion xB Code - Engine Coolant Temperature Circuit High Input

What does this mean?

What are the Possible Causes of the DTC P0118 2005 Scion xB?

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 2005 Scion xB?

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

Replacing the Coolant Temperature (ECT) sensor usually fixes the problem.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0118 2005 Scion xB 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 2005 Scion xB code?

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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 2005 Scion xB Code

1. What does the OBDII code P0118 on a 2005 Scion xB mean?

The OBDII code P0118 indicates a high input signal from the engine coolant temperature sensor circuit in a 2005 Scion xB.

2. What are the common symptoms of a P0118 code in a 2005 Scion xB?

Common symptoms of a P0118 code in a 2005 Scion xB include engine overheating, poor fuel economy, rough idling, and a decrease in overall engine performance.

3. What are the possible causes of a P0118 code in a 2005 Scion xB?

Possible causes of a P0118 code in a 2005 Scion xB include a faulty engine coolant temperature sensor, a problem with the sensor wiring or connector, low coolant levels, or issues with the cooling system.

4. How can I diagnose a P0118 code in a 2005 Scion xB?

To diagnose a P0118 code in a 2005 Scion xB, you can use an OBDII scanner to read the code, check the engine coolant level, inspect the sensor wiring and connector, and test the engine coolant temperature sensor for proper operation.

5. What are the repair options for a P0118 code in a 2005 Scion xB?

Repair options for a P0118 code in a 2005 Scion xB may include replacing the engine coolant temperature sensor, repairing any damaged wiring or connectors, topping up the coolant level, and ensuring the cooling system is functioning correctly.

6. Can a P0118 code in a 2005 Scion xB cause engine damage?

A P0118 code in a 2005 Scion xB can potentially cause engine damage if left unresolved for an extended period, as it may lead to overheating and other related issues. It's important to address the code promptly to prevent any serious damage.

7. Is it safe to drive with a P0118 code in a 2005 Scion xB?

It is not recommended to drive a 2005 Scion xB with a P0118 code, as it can lead to engine overheating and potential damage. It's best to address the issue before driving the vehicle to prevent any further complications.

8. How much does it typically cost to repair a P0118 code in a 2005 Scion xB?

The cost of repairing a P0118 code in a 2005 Scion xB can vary depending on the exact cause of the issue and the labor rates in your area. Generally, it may cost anywhere from $100 to $300 for parts and labor.

9. Can a DIY enthusiast fix a P0118 code in a 2005 Scion xB?

A DIY enthusiast with the necessary tools and knowledge may be able to fix a P0118 code in a 2005 Scion xB, especially if the issue is related to the engine coolant temperature sensor or wiring. However, if in doubt, it's best to consult a professional mechanic.

10. How often does a P0118 code occur in a 2005 Scion xB?

The occurrence of a P0118 code in a 2005 Scion xB can vary depending on the vehicle's maintenance history and driving conditions. It is not a common code, but it can still occur due to sensor or cooling system issues.