AutoCodes – Scion – P0118 2006 Scion xB

P0118 2006 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 2006 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 6,961

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 2006 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 2006 Scion xB - Engine Coolant Temperature Circuit High Input - AutoCodes.com — P0118 2006 Scion xB Code - Engine Coolant Temperature Circuit High Input

What does this mean?

What are the Possible Causes of the DTC P0118 2006 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 2006 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 2006 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 2006 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 2006 Scion xB Code

1. What are the common symptoms of OBDII code P0118 on a 2006 Scion xB?

Symptoms may include the engine running hot, poor fuel economy, rough idling, or a temperature gauge reading incorrectly.

2. What does the OBDII code P0118 "Engine Coolant Temperature Circuit High Input" mean for a 2006 Scion xB?

This code indicates that the Engine Control Module (ECM) has detected a high voltage signal from the Engine Coolant Temperature (ECT) sensor.

3. What are the possible causes of OBDII code P0118 on a 2006 Scion xB?

Common causes include a faulty ECT sensor, a wiring issue in the ECT circuit, a corroded connector, or a problem with the ECM itself.

4. How can I diagnose the cause of OBDII code P0118 on my 2006 Scion xB?

You can use a multimeter to test the ECT sensor, inspect the wiring for damage, check the connector for corrosion, and scan for any other related codes.

5. Can a bad thermostat cause OBDII code P0118 to appear on a 2006 Scion xB?

Yes, a malfunctioning thermostat can cause the engine coolant temperature to be inaccurately high, triggering the P0118 code.

6. What are some repair tips for resolving OBDII code P0118 on a 2006 Scion xB?

Start by checking the ECT sensor and its wiring for issues, replace the sensor if necessary, clear the code, and monitor the system for proper operation.

7. Is it safe to continue driving with OBDII code P0118 active on a 2006 Scion xB?

It is not recommended to drive with this code active, as it can lead to overheating issues and potential engine damage if left unresolved.

8. How much does it typically cost to repair OBDII code P0118 on a 2006 Scion xB?

The cost can vary depending on the exact cause of the issue, but it may range from $50 to $200 for parts and labor.

9. Can resetting the OBDII code P0118 on a 2006 Scion xB temporarily resolve the issue?

Resetting the code may temporarily clear the warning light, but if the underlying problem is not fixed, the code is likely to reappear.

10. Will OBDII code P0118 affect the emissions test for a 2006 Scion xB?

Yes, since this code is related to the engine's coolant temperature, it may affect the vehicle's emissions and could cause it to fail an emissions test.