P0117 2014 GMC Sierra Code - Engine Coolant Temperature Circuit Low Input
Quick Answer
The P0117 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates that there is a low input signal from the engine coolant temperature (ECT) sensor circuit. Common causes include Faulty ECT sensor, Damaged wiring or connectors in the ECT circuit, Malfunctioning ECM. 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 GMC Sierra indicates Engine Coolant Temperature Circuit Low Input.
- Common causes
- Common causes include Faulty ECT sensor, Damaged wiring or connectors in the ECT circuit, Malfunctioning ECM.
- 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 2014 GMC Sierra Description
The P0117 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates that there is a low input signal from the engine coolant temperature (ECT) sensor circuit. The ECT sensor is responsible for monitoring the temperature of the engine coolant and providing this information to the engine control module (ECM) to help regulate fuel delivery and ignition timing. When the ECM receives a low input signal from the ECT sensor, it may not be able to accurately adjust these parameters, leading to potential performance issues.
Common Causes of P0117 2014 GMC Sierra
- Faulty ECT sensor
- Damaged wiring or connectors in the ECT circuit
- Malfunctioning ECM
- Low coolant level
- Corrosion or contamination in the ECT sensor connector
Symptoms of P0117 2014 GMC Sierra
- Poor fuel efficiency
- Rough idling
- Hesitation during acceleration
- Engine misfires
- Difficulty starting, especially in cold weather
How to Fix P0117 2014 GMC Sierra
- Begin by checking the coolant level and ensuring it is at the proper level.
- Inspect the wiring and connectors in the ECT circuit for any damage or corrosion.
- Test the ECT sensor using a multimeter to determine if it is functioning correctly.
- If the ECT sensor is faulty, replace it with a new one following the manufacturer's guidelines.
- Clear the DTC using a scan tool and monitor the ECT sensor readings to ensure they are within the expected range.
Cost to Fix P0117 2014 GMC Sierra
The typical repair costs for addressing a P0117 code on a 2014 GMC Sierra can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check local rates for a more accurate estimate. Additionally, factors such as location, vehicle make and model, and engine type can also impact the overall repair costs.
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Frequently Asked Questions about P0117 2014 GMC Sierra Code
1. What does the OBDII code P0117 mean on a 2014 GMC Sierra?
P0117 indicates that the Engine Control Module (ECM) has detected a low voltage signal from the Engine Coolant Temperature (ECT) sensor, suggesting a circuit issue.
2. What are the common symptoms of code P0117 in a 2014 GMC Sierra?
Symptoms may include poor fuel economy, engine overheating, difficulty starting, an illuminated check engine light, and the radiator fan running constantly.
3. What causes the P0117 code to appear in a 2014 GMC Sierra?
Possible causes include a faulty ECT sensor, damaged or corroded wiring, a short to ground in the circuit, a poor electrical connection, or a malfunctioning ECM.
4. Can I drive my 2014 GMC Sierra with a P0117 code?
It’s not recommended to drive for long periods with this code, as it can affect engine performance and potentially lead to overheating or other issues.
5. How do I diagnose the P0117 code in a 2014 GMC Sierra?
Start by inspecting the ECT sensor and its wiring for damage or corrosion. Use a multimeter to check the sensor’s resistance and verify proper voltage in the circuit.
6. How do I fix the P0117 code on a 2014 GMC Sierra?
Repairs may involve replacing the ECT sensor, repairing damaged wiring, cleaning corroded connectors, or reprogramming/replacing the ECM if necessary.
7. Where is the ECT sensor located on a 2014 GMC Sierra?
The ECT sensor is typically located near the thermostat housing on the engine block or cylinder head.
8. How much does it cost to repair a P0117 code on a 2014 GMC Sierra?
Repair costs depend on the issue, ranging from $50 to $200 for an ECT sensor replacement to $500 or more for extensive wiring repairs or ECM replacement.
9. Can a bad thermostat cause a P0117 code on a 2014 GMC Sierra?
While a bad thermostat can cause temperature-related issues, it usually won’t trigger a P0117 code unless it affects the ECT sensor’s readings.
10. Will clearing the P0117 code fix the problem on my 2014 GMC Sierra?
Clearing the code will reset the check engine light, but the underlying issue must be addressed to prevent the code from returning.
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