P00EC 2016 GMC Sierra Code - Intake Air Temperature Sensor 3 Circuit Erratic
Quick Answer
The Intake Air Temperature (IAT) Sensor 3 is a variable resistor that changes an Engine Control Module (ECM) supplied 5 V signal. Common causes include Faulty Intake Air Temperature (IAT) Sensor 3 (Integrated with the Intake Manifold Pressure and Air Temperature Sensor), Intake Air Temperature Sensor 3 harness is open or shorted, Intake Air Temperature Sensor 3 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
- P00EC 2016 GMC Sierra indicates Intake Air Temperature Sensor 3 Circuit Erratic.
- Common causes
- Common causes include Faulty Intake Air Temperature (IAT) Sensor 3 (Integrated with the Intake Manifold Pressure and Air Temperature Sensor), Intake Air Temperature Sensor 3 harness is open or shorted, Intake Air Temperature Sensor 3 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 P00EC 2016 GMC Sierra Description
What are the Possible Causes of the DTC P00EC 2016 GMC Sierra?
- Faulty Intake Air Temperature (IAT) Sensor 3 (Integrated with the Intake Manifold Pressure and Air Temperature Sensor)
- Intake Air Temperature Sensor 3 harness is open or shorted
- Intake Air Temperature Sensor 3 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P00EC 2016 GMC Sierra?
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 P00EC 2016 GMC Sierra 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 P00EC 2016 GMC Sierra Code
1. What does the OBDII code P00EC mean on a 2016 GMC Sierra?
The P00EC code indicates an "Intake Air Temperature Sensor 3 Circuit Erratic" issue, meaning the sensor's readings are inconsistent or outside of expected parameters.
2. What are the symptoms of code P00EC on a 2016 GMC Sierra?
Symptoms may include poor engine performance, reduced fuel efficiency, rough idling, and potentially an illuminated Check Engine Light.
3. What causes the P00EC code to appear on a 2016 GMC Sierra?
Common causes include a faulty intake air temperature (IAT) sensor, damaged or corroded wiring, a loose connection, or a malfunctioning ECM.
4. Can a dirty air filter trigger the P00EC code?
While unlikely, a severely clogged air filter could potentially affect air intake readings, indirectly contributing to the issue.
5. How do I diagnose the P00EC code?
Start by inspecting the IAT sensor and its wiring for damage or corrosion. Use a multimeter to check sensor resistance and verify proper voltage at the connector.
6. Can I drive my 2016 GMC Sierra with the P00EC code active?
Driving with the P00EC code is not recommended, as it can lead to reduced performance and potential engine damage.
7. How do I fix the P00EC code on my 2016 GMC Sierra?
Repairs may include replacing the IAT sensor, repairing damaged wiring, cleaning connections, or reprogramming the ECM if needed.
8. Where is the Intake Air Temperature Sensor 3 located on a 2016 GMC Sierra?
The IAT Sensor 3 is typically located near the intake manifold or integrated into the mass airflow (MAF) sensor.
9. How much does it cost to repair the P00EC code on a 2016 GMC Sierra?
Repair costs can vary but typically range from $50 to $300, depending on whether the sensor, wiring, or ECM requires attention.
10. Can a software update fix the P00EC code?
In some cases, a reflash or update of the engine control module (ECM) may resolve erratic sensor readings if the issue is software-related.
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