P111E 2014 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 2014 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 2014 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 2014 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 2014 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 2014 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 2014 Chevrolet Silverado Code
What does the OBDII code P111E mean on a 2014 Chevrolet Silverado?
P111E indicates that the Engine Coolant Temperature (ECT) sensor is providing implausible or inconsistent readings, which may affect engine performance.
What are the common symptoms of code P111E in a Silverado?
Symptoms can include an illuminated check engine light, poor fuel economy, engine overheating, or difficulty starting the engine.
What causes the P111E code to trigger?
Possible causes include a faulty ECT sensor, damaged wiring or connectors, a stuck thermostat, or issues with the engine control module (ECM).
How can I diagnose the P111E code on my Silverado?
Start by checking the coolant level and inspecting the ECT sensor's wiring and connectors for damage. Use a diagnostic scanner to monitor the sensor's readings and compare them to expected values.
Can I drive my Silverado with the P111E code active?
Driving with this code is not recommended, as it can lead to engine overheating or damage due to inaccurate temperature readings.
How do I fix the P111E code on my 2014 Silverado?
Common fixes include replacing the ECT sensor, repairing damaged wiring, replacing the thermostat, or addressing any ECM-related issues.
What tools are needed to repair the P111E code?
Basic tools include a diagnostic scanner, a multimeter for testing wiring, and standard hand tools to replace components like the sensor or thermostat.
How much does it cost to repair the P111E code?
Repair costs vary but generally range from $50 to $200 for parts and labor, depending on whether the ECT sensor or thermostat needs replacement.
Can low coolant levels cause the P111E code?
Yes, low coolant levels can cause inaccurate temperature readings and trigger the P111E code, so checking and refilling coolant is a good first step.
Does the P111E code require reprogramming the ECM?
In most cases, reprogramming the ECM is not required, but if the issue persists after repairs, an ECM update or replacement may be necessary.
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