P111E 2015 Chevrolet Silverado Code - Engine Coolant Temperature Sensor Not Plausible
Quick Answer
The Engine Coolant Temperature (ECT) sensor is a variable resistor that measures the temperature of the engine coolant. Common causes include Faulty Engine Coolant Temperature (ECT) Sensor, Engine Coolant Temperature Sensor harness is open or shorted, Engine Coolant Temperature Sensor circuit poor electrical connection. 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
- P111E 2015 Chevrolet Silverado indicates Engine Coolant Temperature Sensor Not Plausible.
- Common causes
- Common causes include Faulty Engine Coolant Temperature (ECT) Sensor, Engine Coolant Temperature Sensor harness is open or shorted, Engine Coolant Temperature Sensor circuit poor electrical connection.
- 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 P111E 2015 Chevrolet Silverado Description
The purpose of this diagnostic is to determine if the input from the ECT sensor is skewed warmer or colder than the Intake Air Temperature (IAT) sensor and Radiator Coolant Temperature (RCT) sensor. The internal clock of the ECM will record the amount of time the engine is OFF. If the required engine OFF time is met at start-up, the ECM will compare temperatures between the ECT, IAT, and RCT sensors.
If the ECM detects that the temperature difference between the ECT, IAT, and RCT sensors is not within an acceptable operating range, the ECM will continue to run this diagnostic to determine if a block heater was active during the engine OFF time. The Diagnostic Trouble Code (DTC) will be set if the ECM detects that there is a temperature difference between the start-up Engine Coolant Temperature sensor, Intake Air Temperature sensor, and the Radiator Coolant Temperature (RCT) sensor.
What are the Possible Causes of the DTC P111E 2015 Chevrolet Silverado?
- 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 P111E 2015 Chevrolet Silverado?
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 P111E 2015 Chevrolet Silverado 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 P111E 2015 Chevrolet Silverado Code
1. What does the OBDII code P111E mean on a 2015 Chevrolet Silverado?
P111E indicates that the Engine Coolant Temperature (ECT) sensor is reporting values that are not plausible or outside the expected range.
2. What are the common symptoms of code P111E in a 2015 Chevrolet Silverado?
Symptoms include the check engine light turning on, poor engine performance, erratic temperature gauge readings, and potential overheating or difficulty starting the engine.
3. What causes the P111E code to appear?
Common causes include a faulty ECT sensor, damaged or corroded wiring, a bad connection in the sensor's circuit, or issues with the engine control module (ECM).
4. Can driving with code P111E damage my Silverado?
Yes, prolonged driving with this code can cause engine overheating, reduced fuel efficiency, and potential engine damage if the issue isn't addressed.
5. How do I diagnose the P111E code on my 2015 Chevrolet Silverado?
Diagnosis involves checking the ECT sensor for proper operation, inspecting wiring and connectors for damage, and using a scan tool to monitor live temperature sensor data.
6. Can I fix the P111E code by resetting the check engine light?
Resetting the light without addressing the underlying issue may temporarily clear the code, but it will likely return if the problem persists.
7. How much does it typically cost to repair code P111E?
Repair costs vary but typically range from $100 to $300, depending on whether the sensor needs replacing or if wiring repairs are required.
8. Can a thermostat issue trigger the P111E code?
Yes, a stuck thermostat can cause abnormal coolant temperature readings and may contribute to the P111E code.
9. Do I need to replace the engine coolant temperature sensor to fix code P111E?
Not always. While a faulty sensor is a common cause, the issue could also stem from wiring or connector problems. Proper diagnosis is essential.
10. How can I prevent the P111E code from recurring in my Silverado?
Regularly inspect and maintain the cooling system, including the coolant level, wiring, and connections to the ECT sensor, and replace components as needed.
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