P0119 2015 Chevrolet Silverado Code - Engine Coolant Temperature Circuit Intermittent
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
- P0119 2015 Chevrolet Silverado indicates Engine Coolant Temperature Circuit Intermittent.
- 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 P0119 2015 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 Intermittent for greater than 3 s.
What are the Possible Causes of the DTC P0119 2015 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 P0119 2015 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 P0119 2015 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 P0119 2015 Chevrolet Silverado Code
1. What does the P0119 code mean on a 2015 Chevrolet Silverado?
P0119 indicates an intermittent issue in the Engine Coolant Temperature (ECT) sensor circuit, meaning the sensor signal is inconsistent or erratic.
2. What are the symptoms of a P0119 code in a 2015 Chevrolet Silverado?
Common symptoms include engine overheating, poor fuel efficiency, hard starting, rough idling, or an illuminated check engine light.
3. What causes the P0119 code to appear on a 2015 Chevrolet Silverado?
Typical causes include a faulty ECT sensor, damaged wiring or connectors, a stuck thermostat, or low coolant levels.
4. How do I fix the P0119 code on my 2015 Chevrolet Silverado?
Start by inspecting the ECT sensor, wiring, and connectors for damage. Replace the sensor if faulty, or repair any damaged wiring or connectors. Check and refill the coolant if needed.
5. Can I drive my 2015 Chevrolet Silverado with a P0119 code?
It’s not recommended to drive for long periods with a P0119 code, as it can lead to inaccurate engine temperature readings, potential overheating, or poor performance.
6. How much does it cost to fix a P0119 code on a 2015 Chevrolet Silverado?
Repair costs vary but typically range from $50 to $200, depending on whether the issue is with the ECT sensor, wiring, or thermostat.
7. How can I diagnose the P0119 code on a 2015 Chevrolet Silverado?
Use an OBDII scanner to confirm the code, then inspect the ECT sensor, thermostat, and wiring. Test the sensor with a multimeter to ensure it’s functioning properly.
8. Can a bad thermostat cause the P0119 code on a 2015 Chevrolet Silverado?
Yes, a malfunctioning thermostat that causes irregular temperature fluctuations can trigger the P0119 code.
9. What role does the ECT sensor play in the 2015 Chevrolet Silverado?
The ECT sensor monitors engine coolant temperature and sends data to the engine control module (ECM) to optimize performance and prevent overheating.
10. Will clearing the P0119 code fix the problem on a 2015 Chevrolet Silverado?
Clearing the code may temporarily turn off the check engine light, but the underlying issue must be resolved to prevent the code from returning.
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