P0117 2014 Chevrolet Silverado Code - Engine Coolant Temperature Circuit Low Input
Quick Answer
The Engine Coolant Temperature (ECT) sensor is a variable resistor that measures the temperature of the engine coolant. Common causes include Low engine coolant level, Leaking or stuck open thermostat, Faulty Engine Coolant Temperature (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
- P0117 2014 Chevrolet Silverado indicates Engine Coolant Temperature Circuit Low Input.
- Common causes
- Common causes include Low engine coolant level, Leaking or stuck open thermostat, Faulty Engine Coolant Temperature (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.
Code P0117 2014 Chevrolet Silverado Description
The ECM uses this high side coolant rationality diagnostic to determine if the input from the ECT sensor is skewed warmer than normal. The internal clock of the ECM will record the amount of time the ignition is OFF. If the calibrated ignition OFF time is met at start-up, the ECM will compare the temperature difference between the ECT and the intake air temperature (IAT) to determine if the temperatures are within an acceptable operating range of each other. The Diagnostic Trouble Code (DTC) will be set when the ECM detects a the ECT is warmer than 139°C (282°F) for greater than 5 s.
What are the Possible Causes of the DTC P0117 2014 Chevrolet Silverado?
- Low engine coolant level
- Leaking or stuck open thermostat
- Faulty Engine Coolant Temperature (ECT) sensor
- Engine Coolant Temperature sensor harness is open or shorted
- Engine Coolant Temperature sensor electrical circuit poor connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0117 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 P0117 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 P0117 2014 Chevrolet Silverado Code
What does the OBDII code P0117 mean for a 2014 Chevrolet Silverado?
P0117 indicates that the Engine Control Module (ECM) has detected a low voltage input from the Engine Coolant Temperature (ECT) sensor, suggesting an issue with the sensor or its circuit.
What are the common symptoms of P0117 in a 2014 Chevrolet Silverado?
Symptoms may include engine overheating, poor fuel economy, difficulty starting the engine, erratic temperature gauge readings, or the check engine light being illuminated.
What causes the P0117 code to appear on a 2014 Chevrolet Silverado?
Common causes include a faulty ECT sensor, damaged wiring or connectors in the ECT circuit, a short or open circuit, or an issue with the ECM itself.
Can driving with the P0117 code damage my 2014 Chevrolet Silverado?
Yes, driving with this code can lead to engine overheating, which may cause severe damage to the engine components if not addressed promptly.
How can I diagnose the P0117 code on my 2014 Chevrolet Silverado?
Start by inspecting the ECT sensor, its wiring, and connectors for damage. Check for corrosion, loose connections, or breaks in the wiring. Use a multimeter to test the sensor's resistance and voltage readings.
How do I fix the P0117 code on a 2014 Chevrolet Silverado?
Repairs may include replacing the ECT sensor, repairing or replacing damaged wiring, cleaning corroded connectors, or reprogramming the ECM if necessary.
How much does it cost to repair the P0117 code on a 2014 Chevrolet Silverado?
Repair costs can vary. Replacing the ECT sensor typically costs $50-$150 for parts and labor, while wiring repairs may cost $100-$500 depending on the complexity of the issue.
Is it safe to drive with the P0117 code on my 2014 Chevrolet Silverado?
It's not recommended to drive for long with this code, as it may cause engine overheating or erratic performance, leading to further damage.
How does the ECT sensor affect engine performance in a 2014 Chevrolet Silverado?
The ECT sensor helps the ECM manage fuel delivery, ignition timing, and cooling system operations. A faulty sensor can disrupt these functions, leading to poor performance and potential engine damage.
Can a low coolant level trigger the P0117 code on a 2014 Chevrolet Silverado?
Low coolant levels are unlikely to directly cause this code, but they can lead to overheating, which may affect the ECT sensor readings. Always check and maintain proper coolant levels.
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