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P0115 Dodge Code - Engine Coolant Temperature Sensor Performance

Quick Answer

The P0115 code for Dodge vehicles indicates a problem with the Engine Coolant Temperature (ECT) sensor's performance. Common causes include Faulty ECT sensor, Wiring or connector issues, Corrosion or damage to the 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
P0115 Dodge indicates Engine Coolant Temperature Sensor Performance.
Common causes
Common causes include Faulty ECT sensor, Wiring or connector issues, Corrosion or damage to the 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0115 Dodge Description

The P0115 code for Dodge vehicles indicates a problem with the Engine Coolant Temperature (ECT) sensor's performance. The ECT sensor is a crucial component that monitors the temperature of the engine coolant and sends this information to the engine control module (ECM). The ECM uses this data to adjust fuel delivery and ignition timing to ensure optimal engine performance and efficiency.

OBDII Code P0115 Dodge - Engine Coolant Temperature Sensor Performance
P0115 Dodge Code - Engine Coolant Temperature Sensor Performance

Common Causes of P0115 Dodge

  1. Faulty ECT sensor
  2. Wiring or connector issues
  3. Corrosion or damage to the ECT sensor
  4. Coolant leaks affecting sensor readings
  5. ECM software issues

Symptoms of P0115 Dodge

  1. Check engine light illuminated on the dashboard
  2. Poor fuel economy
  3. Engine running too rich or too lean
  4. Rough idling
  5. Engine overheating

How to Fix P0115 Dodge

  1. Begin by locating the ECT sensor on the engine (usually near the thermostat housing).
  2. Inspect the sensor and its wiring for any visible damage, corrosion, or loose connections.
  3. Test the ECT sensor using a multimeter to check for proper resistance values.
  4. If the sensor is faulty, replace it with a new one following the manufacturer's specifications.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0115 Dodge

The cost of repairing a P0115 code for a Dodge vehicle can vary depending on the specific model and year. On average, the price range for replacing an Engine Coolant Temperature sensor can be between $100 to $200 for parts and labor. However, it's essential to note that labor rates at auto repair shops can fluctuate based on location, vehicle make and model, and the technician's expertise. It's recommended to inquire with local auto repair shops for a more accurate estimate.

When is the Code Detected?

An excessively low or high voltage from the sensor is sent to Engine Control Module (ECM).

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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.

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