P0118 Toyota 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 Toyota 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.
Code P0118 Toyota Description
What are the Possible Causes of the DTC P0118 Toyota?
- 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 Toyota?
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.
Code Tech Notes
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What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0118 Toyota 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.
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Information for Specific Toyota Models
- P0118 2006 Toyota Camry — Engine Coolant Temperature Circuit High Input
- P0118 2007 Toyota Camry — Engine Coolant Temperature Circuit High Input
- P0118 2008 Toyota Camry — Engine Coolant Temperature Circuit High Input
- P0118 2009 Toyota Camry — Engine Coolant Temperature Circuit High Input
- P0118 2010 Toyota Camry — Engine Coolant Temperature Circuit High Input
- P0118 2011 Toyota Camry — Engine Coolant Temperature Circuit High Input
- P0118 2001 Toyota Corolla — Engine Coolant Temperature Circuit High Input 3ZZ-FE Engine
- P0118 2002 Toyota Corolla — Engine Coolant Temperature Circuit High Input 3ZZ-FE Engine
- P0118 2003 Toyota Corolla — Engine Coolant Temperature Circuit High Input 3ZZ-FE Engine
- P0118 2004 Toyota Corolla — Engine Coolant Temperature Circuit High Input 3ZZ-FE Engine
- P0118 2005 Toyota Corolla — Engine Coolant Temperature Circuit High Input 3ZZ-FE Engine
- P0118 2006 Toyota Corolla — Engine Coolant Temperature Circuit High Input 3ZZ-FE Engine
- P0118 2001 Toyota Highlander — Engine Coolant Temperature Circuit High Input
- P0118 2002 Toyota Highlander — Engine Coolant Temperature Circuit High Input
- P0118 2003 Toyota Highlander — Engine Coolant Temperature Circuit High Input
- P0118 2004 Toyota Highlander — Engine Coolant Temperature Circuit High Input
- P0118 2005 Toyota Highlander — Engine Coolant Temperature Circuit High Input
- P0118 2006 Toyota Highlander — Engine Coolant Temperature Circuit High Input
- P0118 2007 Toyota Highlander — Engine Coolant Temperature Circuit High Input
- P0118 2004 Toyota Prius — Engine Coolant Temperature Circuit High Input
- P0118 2005 Toyota Prius — Engine Coolant Temperature Circuit High Input
- P0118 2006 Toyota Prius — Engine Coolant Temperature Circuit High Input
- P0118 2007 Toyota Prius — Engine Coolant Temperature Circuit High Input
- P0118 2008 Toyota Prius — Engine Coolant Temperature Circuit High Input
- P0118 2009 Toyota Prius — Engine Coolant Temperature Circuit High Input
- P0118 2013 Toyota RAV4 — Engine Coolant Temperature Circuit High Input
- P0118 2014 Toyota RAV4 — Engine Coolant Temperature Circuit High Input
- P0118 2015 Toyota RAV4 — Engine Coolant Temperature Circuit High Input
- P0118 2016 Toyota RAV4 — Engine Coolant Temperature Circuit High Input
- P0118 2017 Toyota RAV4 — Engine Coolant Temperature Circuit High Input
- P0118 2018 Toyota RAV4 — Engine Coolant Temperature Circuit High Input
Frequently Asked Questions about P0118 Toyota Code
1. What are the common symptoms of OBDII code P0118 in a Toyota?
Symptoms may include engine overheating, a decrease in fuel economy, difficulty starting the engine, and the Check Engine light illuminating on the dashboard.
2. What causes the OBDII code P0118 in a Toyota?
The most common cause is a faulty engine coolant temperature (ECT) sensor, a corroded or damaged ECT sensor connector, low coolant levels, or a problem with the ECT sensor circuit.
3. How can I diagnose the OBDII code P0118 in my Toyota?
You can diagnose the issue by checking the coolant level, inspecting the ECT sensor and its wiring for damage, using a multimeter to test the sensor's resistance, and scanning the vehicle for any additional trouble codes.
4. Can I drive my Toyota with the OBDII code P0118?
It is not recommended to drive your vehicle with this code as it may lead to engine overheating and other potentially serious issues. It's best to address the problem promptly.
5. How can I repair the OBDII code P0118 in my Toyota?
Repair options include replacing the ECT sensor, repairing or replacing damaged wiring or connectors, ensuring proper coolant levels, and clearing the trouble code with an OBDII scanner.
6. Can a dirty or clogged cooling system cause the OBDII code P0118 in a Toyota?
Yes, a dirty or clogged cooling system can impact the accuracy of the ECT sensor readings, potentially triggering the P0118 trouble code.
7. Is it safe to reset the Check Engine light after repairing the OBDII code P0118 in my Toyota?
Yes, after addressing the underlying issue causing the code, it is safe to reset the Check Engine light using an OBDII scanner to clear the code from the vehicle's computer.
8. Will the OBDII code P0118 cause my Toyota to fail an emissions test?
Yes, the P0118 code can cause your vehicle to fail an emissions test as it indicates a potential issue with the engine coolant temperature sensor, which is essential for proper engine performance.
9. Can extreme weather conditions trigger the OBDII code P0118 in a Toyota?
Extreme cold or hot weather can impact the engine coolant temperature readings, potentially leading to a false high input signal and triggering the P0118 trouble code.
10. How much does it typically cost to repair the OBDII code P0118 in a Toyota?
The cost of repairing the P0118 code can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.
Discuss the causes and fixes for P0118 Toyota OBDII Code
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