P111E 2016 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 2016 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 2016 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 2016 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 2016 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 2016 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 2016 Chevrolet Silverado Code
1. What does OBDII code P111E mean on a 2016 Chevrolet Silverado?
P111E indicates an issue where the engine coolant temperature sensor is reporting data that is not plausible or inconsistent with expected values.
2. What are the common symptoms of code P111E in a 2016 Chevrolet Silverado?
Symptoms may include an illuminated check engine light, poor fuel efficiency, engine overheating, or irregular engine performance.
3. What causes code P111E in a 2016 Chevrolet Silverado?
Common causes include a faulty engine coolant temperature (ECT) sensor, damaged wiring or connectors, a malfunctioning thermostat, or issues with the engine control module (ECM).
4. Can driving with code P111E damage my 2016 Chevrolet Silverado?
Yes, ignoring this code can lead to engine overheating or suboptimal performance, which may cause long-term engine damage.
5. How do I diagnose code P111E on my 2016 Chevrolet Silverado?
Start by checking the ECT sensor and its wiring for damage, test the thermostat for proper operation, and use a scan tool to monitor live sensor data.
6. How do I fix code P111E on a 2016 Chevrolet Silverado?
Repairs may include replacing the ECT sensor, repairing damaged wiring or connections, replacing a stuck thermostat, or reprogramming the ECM if needed.
7. How much does it cost to fix code P111E on a 2016 Chevrolet Silverado?
The repair cost depends on the root cause, ranging from $50 to $150 for an ECT sensor replacement, while thermostat repairs or ECM reprogramming could be higher.
8. Can a bad thermostat trigger code P111E on my 2016 Chevrolet Silverado?
Yes, a malfunctioning thermostat can cause inaccurate coolant temperature readings, leading to this code.
9. Is it safe to reset the check engine light for code P111E without fixing the issue?
Resetting the light without addressing the problem can temporarily clear the code but doesn't resolve the underlying issue, potentially leading to further engine damage.
10. How can I prevent code P111E from recurring on my 2016 Chevrolet Silverado?
Regular maintenance, inspecting the cooling system, and promptly addressing sensor or wiring issues can help prevent this code from reappearing.
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