P0117 2017 Chevrolet Silverado Code - Engine Coolant Temperature Circuit Low Input
Quick Answer
The P0117 diagnostic trouble code (DTC) on a 2017 Chevrolet Silverado indicates that there is a low input signal in the engine coolant temperature (ECT) circuit. Common causes include Faulty ECT Sensor: The most common cause of the P0117 code is a malfunctioning ECT sensor that is sending a low voltage signal to the ECM, Wiring Issues: Damaged or corroded wiring in the ECT circuit can result in a low input signal, Coolant Level: Low coolant levels or air bubbles in the cooling system can affect the ECT sensor readings. 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 2017 Chevrolet Silverado indicates Engine Coolant Temperature Circuit Low Input.
- Common causes
- Common causes include Faulty ECT Sensor: The most common cause of the P0117 code is a malfunctioning ECT sensor that is sending a low voltage signal to the ECM, Wiring Issues: Damaged or corroded wiring in the ECT circuit can result in a low input signal, Coolant Level: Low coolant levels or air bubbles in the cooling system can affect the ECT sensor readings.
- 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.
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Code P0117 2017 Chevrolet Silverado Description
The P0117 diagnostic trouble code (DTC) on a 2017 Chevrolet Silverado indicates that there is a low input signal in the engine coolant temperature (ECT) circuit. This means that the Engine Control Module (ECM) has detected a voltage signal from the ECT sensor that is lower than expected. The ECT sensor is a crucial component that monitors the temperature of the engine coolant and provides this information to the ECM for proper engine operation. When the ECT sensor sends a low voltage signal, it can lead to various performance issues in the vehicle.
Common Causes of P0117 2017 Chevrolet Silverado
- Faulty ECT Sensor: The most common cause of the P0117 code is a malfunctioning ECT sensor that is sending a low voltage signal to the ECM.
- Wiring Issues: Damaged or corroded wiring in the ECT circuit can result in a low input signal.
- Coolant Level: Low coolant levels or air bubbles in the cooling system can affect the ECT sensor readings.
- Thermostat Malfunction: A faulty thermostat can also impact the engine coolant temperature readings.
- ECM Issues: In rare cases, a malfunctioning ECM can cause the P0117 code to be triggered.
Symptoms of P0117 2017 Chevrolet Silverado
- Check Engine Light: The most common symptom associated with the P0117 code is the illumination of the check engine light on the dashboard.
- Poor Fuel Efficiency: A faulty ECT sensor can lead to incorrect fuel mixture calculations, resulting in decreased fuel efficiency.
- Rough Idling: The engine may experience rough idling or stalling due to inaccurate temperature readings.
- Engine Misfires: Incorrect temperature readings can cause the engine to misfire, leading to performance issues.
- Overheating: In severe cases, the engine may overheat due to inaccurate coolant temperature readings.
How to Fix P0117 2017 Chevrolet Silverado
- Diagnose the Issue: Use a scan tool to read the code and determine the specific cause of the low input signal in the ECT circuit.
- Inspect ECT Sensor: Check the ECT sensor for any signs of damage or corrosion. Replace the sensor if necessary.
- Check Wiring: Inspect the wiring in the ECT circuit for any damage or loose connections. Repair or replace as needed.
- Verify Coolant Levels: Ensure that the coolant levels are adequate and there are no air bubbles in the cooling system.
- Clear Codes: After making the necessary repairs, clear the code with a scan tool and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0117 2017 Chevrolet Silverado
The cost of repairing the P0117 code on a 2017 Chevrolet Silverado can vary depending on the specific cause of the issue. Typically, the cost of replacing the ECT sensor can range from $50 to $150, while the cost of diagnosing and repairing wiring issues or other components can add to the total cost. Labor rates at auto repair shops can range from $80 to $150 per hour, so it's advisable to check local rates for a more accurate estimate. In total, the repair costs for addressing the P0117 code can range from $100 to $500 or more, depending on the extent of the issue and the parts needed.
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