P0118 Mitsubishi Code - Engine Coolant Temperature Sensor 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 Mitsubishi indicates Engine Coolant Temperature Sensor 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.
Code P0118 Mitsubishi Description
What are the Possible Causes of the DTC P0118 Mitsubishi?
- 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 Mitsubishi?
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 Mitsubishi 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 Mitsubishi Code
What does OBDII code P0118 mean for a Mitsubishi vehicle?
P0118 indicates a high input signal from the engine coolant temperature (ECT) sensor, suggesting the sensor may be malfunctioning or experiencing an electrical issue.
What are the common symptoms of code P0118 in a Mitsubishi?
Symptoms include poor fuel economy, difficulty starting the engine, rough idling, engine overheating, and the check engine light being illuminated.
What causes the P0118 code in a Mitsubishi?
Common causes include a faulty ECT sensor, damaged wiring or connectors, a short circuit, or issues with the engine control module (ECM).
Can driving with the P0118 code damage my Mitsubishi engine?
Yes, prolonged driving with this code can lead to poor engine performance, overheating, and potential damage to internal components.
How do I diagnose the P0118 code on a Mitsubishi?
Start by inspecting the ECT sensor and its wiring for damage, then use a multimeter to check for proper voltage readings. If needed, perform further tests on the ECM.
How do you fix code P0118 in a Mitsubishi?
Repairs may involve replacing the ECT sensor, repairing or replacing damaged wiring, cleaning sensor connectors, or addressing ECM issues.
Is replacing the ECT sensor the only solution for code P0118?
No, while replacing the ECT sensor is common, the issue could also stem from wiring problems or ECM faults, which may require other repairs.
What does the ECT sensor do in a Mitsubishi?
The ECT sensor measures the engine’s coolant temperature and sends signals to the ECM to adjust fuel delivery, ignition timing, and other engine parameters.
How much does it cost to fix code P0118 in a Mitsubishi?
The cost varies but typically ranges from $100 to $300 for parts and labor, depending on whether the ECT sensor, wiring, or ECM requires repair.
Can a faulty thermostat cause code P0118 in a Mitsubishi?
While unlikely, a stuck thermostat could indirectly affect coolant temperature readings and contribute to engine overheating, which might trigger related codes.
Discuss the causes and fixes for P0118 Mitsubishi OBDII Code
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