P0099 2015 GMC Sierra Code - Intake Air Temperature Sensor 2 Circuit Intermittent
Quick Answer
The diagnostic trouble code P0099 for a 2015 GMC Sierra indicates a problem with the Intake Air Temperature Sensor 2 Circuit Intermittent. Common causes include Faulty Intake Air Temperature Sensor, Loose or corroded electrical connections, Wiring harness issues. 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
- P0099 2015 GMC Sierra indicates Intake Air Temperature Sensor 2 Circuit Intermittent.
- Common causes
- Common causes include Faulty Intake Air Temperature Sensor, Loose or corroded electrical connections, Wiring harness issues.
- 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 P0099 2015 GMC Sierra Description
The diagnostic trouble code P0099 for a 2015 GMC Sierra indicates a problem with the Intake Air Temperature Sensor 2 Circuit Intermittent. The Intake Air Temperature (IAT) sensor is responsible for monitoring the temperature of the air entering the engine. This information is crucial for the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion and performance.
Common Causes of P0099 2015 GMC Sierra
- Faulty Intake Air Temperature Sensor
- Loose or corroded electrical connections
- Wiring harness issues
- ECM software or hardware problems
- Environmental factors such as extreme temperatures affecting sensor performance
Symptoms of P0099 2015 GMC Sierra
- Decreased fuel efficiency
- Rough idling or stalling
- Engine hesitation or misfires
- Check Engine Light illuminated
How to Fix P0099 2015 GMC Sierra
- Begin by locating the Intake Air Temperature Sensor 2, typically located near the air intake system.
- Inspect the sensor and surrounding wiring for any visible damage, corrosion, or loose connections.
- Test the sensor using a multimeter to check for proper resistance and voltage readings.
- If the sensor is faulty, replace it with a new one following manufacturer's guidelines.
- Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0099 2015 GMC Sierra
The cost of repairing the Intake Air Temperature Sensor 2 Circuit Intermittent code on a 2015 GMC Sierra can vary depending on the cost of the sensor, labor rates, and any additional parts or services required. On average, the cost of a new Intake Air Temperature Sensor can range from $50 to $150, while labor costs can range from $100 to $200. Overall, the total repair cost for this issue could range from $150 to $350. It is advisable to consult with a trusted mechanic or auto repair shop for a more accurate cost estimate based on your specific vehicle and location.
Tech Notes for P0099 2015 GMC Sierra
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Frequently Asked Questions about P0099 2015 GMC Sierra Code
1. What are the common symptoms of OBDII code P0099 in a 2015 GMC Sierra related to the Intake Air Temperature Sensor 2 Circuit Intermittent?
- Common symptoms include engine performance issues, reduced fuel efficiency, and potentially rough idling or stalling.
2. What can cause the OBDII code P0099 in a 2015 GMC Sierra?
- The code P0099 is typically triggered by a faulty intake air temperature sensor, damaged wiring or connectors, or issues with the sensor circuit.
3. How serious is OBDII code P0099 in a 2015 GMC Sierra?
- While the code itself may not cause immediate harm, ignoring it can lead to decreased engine performance and fuel efficiency over time.
4. Can I continue driving my 2015 GMC Sierra with OBDII code P0099?
- It is generally not recommended to continue driving with this code present, as it can impact engine performance and fuel efficiency.
5. How can I diagnose the Intake Air Temperature Sensor 2 Circuit Intermittent issue in my 2015 GMC Sierra?
- Diagnosing the issue involves checking the sensor, wiring, and connectors for any visible damage or signs of malfunction.
6. Is it possible to repair OBDII code P0099 in a 2015 GMC Sierra on my own?
- Depending on your skill level and access to tools, you may be able to replace the intake air temperature sensor or repair any damaged wiring yourself.
7. How much does it cost to repair OBDII code P0099 in a 2015 GMC Sierra at a mechanic?
- The cost of repairing this issue can vary depending on the labor rates and parts costs, but it typically ranges from $100 to $300.
8. Can resetting the OBDII code P0099 in a 2015 GMC Sierra make it go away permanently?
- Resetting the code may temporarily clear it, but if the underlying issue with the intake air temperature sensor or circuit is not fixed, the code will likely reappear.
9. How long does it take to repair the Intake Air Temperature Sensor 2 Circuit Intermittent issue in a 2015 GMC Sierra?
- The repair time can vary depending on the exact cause of the issue, but it typically takes a mechanic around 1-2 hours to diagnose and replace the faulty sensor.
10. Will driving my 2015 GMC Sierra with OBDII code P0099 cause further damage to the vehicle?
- Continued driving with this code can potentially lead to decreased engine performance and fuel efficiency, so it is advisable to address the issue promptly to prevent any further damage.
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