AutoCodes – Mitsubishi – P0115 Mitsubishi

P0115 Mitsubishi Code - Engine Coolant Temperature Circuit Malfunction

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: P0115 Mitsubishi indicates Engine Coolant Temperature Circuit Malfunction.
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 21,796

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
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0115 Mitsubishi 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 P0115 Mitsubishi - Engine Coolant Temperature Circuit Malfunction - AutoCodes.com — P0115 Mitsubishi Code - Engine Coolant Temperature Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P0115 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 circuit poor electrical connection

How to Fix the DTC P0115 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 P0115 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.

Need more information about the P0115 Mitsubishi 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 P0115 Mitsubishi Code

What does the OBDII code P0115 mean in a Mitsubishi vehicle?

P0115 indicates a malfunction in the engine coolant temperature (ECT) sensor circuit, which monitors the temperature of the engine coolant.

What are the common symptoms of a P0115 code in a Mitsubishi?

Symptoms may include poor fuel efficiency, engine overheating, difficulty starting, erratic temperature gauge readings, or the check engine light being illuminated.

What causes a P0115 code in Mitsubishi vehicles?

Common causes include a faulty ECT sensor, damaged wiring or connectors, corrosion, or issues with the engine control module (ECM).

Can a faulty ECT sensor cause the P0115 code?

Yes, a malfunctioning ECT sensor is one of the primary causes of the P0115 code.

How do you diagnose a P0115 code in a Mitsubishi?

Diagnosis typically involves inspecting the ECT sensor, checking wiring and connectors for damage, testing the sensor with a multimeter, and scanning the ECM for related issues.

Is it safe to drive with the P0115 code on a Mitsubishi?

Driving with a P0115 code can lead to engine overheating or performance issues, so itâ€™s recommended to address the problem promptly.

How do you fix the P0115 code in a Mitsubishi?

Repairs may include replacing the ECT sensor, repairing or replacing damaged wiring or connectors, or reprogramming the ECM if necessary.

Can a P0115 code affect fuel efficiency in a Mitsubishi?

Yes, a malfunctioning ECT sensor can cause incorrect fuel mixture calculations, leading to reduced fuel efficiency.

What tools are needed to fix a P0115 code in a Mitsubishi?

You may need an OBDII scanner, multimeter, basic hand tools, and possibly replacement parts like an ECT sensor or wiring components.

How much does it cost to repair a P0115 code in a Mitsubishi?

Costs vary, but replacing the ECT sensor typically ranges from $50 to $150, excluding labor. Wiring repairs or ECM work may increase the overall cost.