P2479 GMC Code - Exhaust Gas Temperature Out of Range Bank 1 Sensor 2
Quick Answer
The Powertrain Control Module (PCM) continuously monitors the Exhaust Gas Temperature Sensor (EGTS) for proper circuit continuity and out of range high values. Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 1 Sensor 2, Exhaust Gas Temperature Sensor Bank 1 Sensor 2 harness is open or shorted, Exhaust Gas Temperature Sensor Bank 1 Sensor 2 circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P2479 GMC indicates Exhaust Gas Temperature Out of Range Bank 1 Sensor 2.
- Common causes
- Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 1 Sensor 2, Exhaust Gas Temperature Sensor Bank 1 Sensor 2 harness is open or shorted, Exhaust Gas Temperature Sensor Bank 1 Sensor 2 circuit poor electrical connection.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Code P2479 GMC Description
What are the Possible Causes of the DTC P2479 GMC?
- Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 1 Sensor 2
- Exhaust Gas Temperature Sensor Bank 1 Sensor 2 harness is open or shorted
- Exhaust Gas Temperature Sensor Bank 1 Sensor 2 circuit poor electrical connection
- Exhaust leaks
- Excessive particulate matter buildup on sensor
How to Fix the DTC P2479 GMC?
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 P2479 GMC 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.
Need more information about the P2479 GMC code?
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Frequently Asked Questions about P2479 GMC Code
1. What are the common symptoms of OBDII code P2479 GMC?
The common symptoms of code P2479 include the illumination of the check engine light, reduced engine performance, and potential fuel efficiency issues.
2. What causes the OBDII code P2479 GMC to trigger?
Code P2479 is triggered when the exhaust gas temperature sensor located on Bank 1 Sensor 2 detects an out-of-range temperature reading, which could be caused by a faulty sensor, wiring issues, or exhaust system problems.
3. How can I diagnose the OBDII code P2479 GMC?
Diagnosing code P2479 typically involves using an OBDII scanner to retrieve the code, checking the exhaust gas temperature sensor's readings, inspecting the sensor and its wiring for damage, and testing the exhaust system components for any issues.
4. Can I continue driving with OBDII code P2479 GMC?
It is not recommended to continue driving with code P2479 present, as it can lead to potential engine damage and decreased performance. It is best to address the underlying issue as soon as possible.
5. How can I repair OBDII code P2479 GMC?
Repairing code P2479 may involve replacing the exhaust gas temperature sensor on Bank 1 Sensor 2, repairing or replacing damaged wiring, and addressing any underlying exhaust system problems that may have caused the issue.
6. Are there any DIY tips for fixing OBDII code P2479 GMC?
While some basic troubleshooting steps can be done by DIY enthusiasts, it is recommended to seek professional help for diagnosing and repairing code P2479 to ensure the issue is properly addressed.
7. Can a faulty catalytic converter cause OBDII code P2479 GMC?
Yes, a faulty catalytic converter can potentially cause code P2479 to trigger, as it can affect the exhaust gas temperature sensor's readings and lead to out-of-range temperature issues.
8. How much does it cost to repair OBDII code P2479 GMC?
The cost of repairing code P2479 can vary depending on the root cause of the issue, the cost of parts needed for repair, and labor charges. It is advisable to obtain quotes from automotive professionals for an accurate estimate.
9. Will resetting the OBDII code P2479 GMC make it go away permanently?
Simply resetting the code without addressing the underlying issue will not make it go away permanently. The root cause of the problem needs to be identified and fixed to prevent the code from reoccurring.
10. Can extreme driving conditions contribute to triggering OBDII code P2479 GMC?
Yes, extreme driving conditions such as heavy towing, driving in extreme temperatures, or prolonged idling can potentially contribute to triggering code P2479 by affecting the exhaust gas temperature readings.
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