P0118 2008 Honda Accord Code - Engine Coolant Temperature Sensor 1 Circuit High Voltage
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 Honda Accord indicates Engine Coolant Temperature Sensor 1 Circuit High Voltage.
- 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.
Code P0118 2008 Honda Accord Description
What are the Possible Causes of the DTC P0118 2008 Honda Accord?
- 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 Honda Accord?
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 Honda Accord 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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Frequently Asked Questions about P0118 2008 Honda Accord Code
1. What are the common symptoms of OBDII code P0118 in a 2008 Honda Accord?
The common symptoms of code P0118 in a 2008 Honda Accord include the dashboard temperature gauge reading unusually high or erratic temperatures, engine overheating, and a potential decrease in fuel efficiency.
2. What causes the OBDII code P0118 to appear in a 2008 Honda Accord?
The most common cause of code P0118 in a 2008 Honda Accord is a malfunctioning Engine Coolant Temperature (ECT) sensor, which may be sending a high voltage signal to the vehicle's engine control module (ECM).
3. How serious is the OBDII code P0118 in a 2008 Honda Accord?
While code P0118 may not always cause immediate drivability issues, it can lead to engine performance problems, potential overheating, and even long-term damage if left unresolved. It is recommended to address this issue promptly.
4. Can a faulty thermostat cause code P0118 in a 2008 Honda Accord?
Yes, a faulty thermostat can sometimes cause code P0118 to appear in a 2008 Honda Accord. If the thermostat is stuck closed or not functioning properly, it can affect the engine coolant temperature readings and trigger the high voltage circuit fault.
5. How can I diagnose and repair OBDII code P0118 in my 2008 Honda Accord?
To diagnose and repair code P0118, start by checking the ECT sensor for any signs of damage or corrosion. Test the sensor's resistance and voltage output to determine if it is functioning correctly. If needed, replace the ECT sensor and clear the code to see if the issue is resolved.
6. Is it safe to continue driving with OBDII code P0118 present in a 2008 Honda Accord?
It is generally not recommended to continue driving with code P0118 present in a 2008 Honda Accord, as it can lead to potential engine overheating and damage. It is best to address the issue promptly to avoid further complications.
7. Can a dirty or low coolant level trigger OBDII code P0118 in a 2008 Honda Accord?
Yes, a dirty or low coolant level can sometimes trigger code P0118 in a 2008 Honda Accord. Insufficient coolant or contaminants in the coolant can affect the ECT sensor readings and cause the high voltage circuit fault.
8. Will disconnecting the battery reset OBDII code P0118 in a 2008 Honda Accord?
Disconnecting the battery may clear the code temporarily, but if the underlying issue with the ECT sensor or cooling system is not addressed, the code is likely to reappear after some driving cycles. It is best to diagnose and fix the root cause of the problem.
9. Can a damaged wiring harness cause OBDII code P0118 in a 2008 Honda Accord?
Yes, a damaged or corroded wiring harness connected to the ECT sensor can cause code P0118 in a 2008 Honda Accord. Inspect the wiring for any visible damage and repair or replace as needed to resolve the high voltage circuit fault.
10. How much does it typically cost to repair OBDII code P0118 in a 2008 Honda Accord?
The cost of repairing code P0118 in a 2008 Honda Accord can vary depending on the underlying issue, such as replacing the ECT sensor, fixing wiring problems, or addressing cooling system issues. Costs can range from around $50 for a DIY ECT sensor replacement to a few hundred dollars at a repair shop for more extensive repairs.
Discuss the causes and fixes for P0118 2008 Honda Accord OBDII Code
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in my Honda Acoord 6 cyl. 99 are PO 118 temperature sensor circuit High where are location in the engine
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Where is the ECT sensor 1 located in a 2005 Honda Accord. I have been unable to find a clear drawing/diagram for this.
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