P246A GMC Code - Exhaust Gas Temperature Sensor Circuit Intermittent/Erratic Bank 2 Sensor 3
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 2 Sensor 3, Exhaust Gas Temperature Sensor Bank 2 Sensor 3 harness is open or shorted, Exhaust Gas Temperature Sensor Bank 2 Sensor 3 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
- P246A GMC indicates Exhaust Gas Temperature Sensor Circuit Intermittent/Erratic Bank 2 Sensor 3.
- Common causes
- Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 2 Sensor 3, Exhaust Gas Temperature Sensor Bank 2 Sensor 3 harness is open or shorted, Exhaust Gas Temperature Sensor Bank 2 Sensor 3 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 P246A GMC Description
What are the Possible Causes of the DTC P246A GMC?
- Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 2 Sensor 3
- Exhaust Gas Temperature Sensor Bank 2 Sensor 3 harness is open or shorted
- Exhaust Gas Temperature Sensor Bank 2 Sensor 3 circuit poor electrical connection
- Exhaust leaks
- Excessive particulate matter buildup on sensor
How to Fix the DTC P246A 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 P246A 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.
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Frequently Asked Questions about P246A GMC Code
1. What are common symptoms of OBDII code P246A GMC?
- Common symptoms include decreased engine performance, reduced fuel efficiency, and the illumination of the check engine light.
2. What can cause the OBDII code P246A GMC to trigger?
- The code P246A is typically triggered by issues with the exhaust gas temperature sensor circuit on Bank 2 Sensor 3, such as sensor malfunctions, wiring problems, or sensor placement issues.
3. How can I diagnose the cause of the exhaust gas temperature sensor circuit issue?
- Diagnosing the issue may involve inspecting the sensor and its wiring for damage, checking for loose connections, and using a multimeter to test the sensor's functionality.
4. Can a faulty exhaust gas temperature sensor cause other problems in the vehicle?
- Yes, a faulty exhaust gas temperature sensor can affect the vehicle's emissions control system, engine performance, and overall fuel efficiency.
5. What are some repair tips for addressing the OBDII code P246A GMC?
- Repair tips may include replacing the faulty exhaust gas temperature sensor, repairing damaged wiring, clearing the error codes, and conducting a test drive to ensure the issue is resolved.
6. Is it safe to continue driving with the OBDII code P246A GMC active?
- It is generally not recommended to drive with the code active, as it can lead to further damage to the vehicle's emissions system and potentially affect engine performance.
7. How much does it typically cost to repair the exhaust gas temperature sensor circuit issue?
- The cost of repair can vary depending on the extent of the issue and whether professional assistance is required. It may involve parts replacement and labor costs.
8. Can I reset the OBDII code P246A GMC myself?
- You can attempt to reset the code using an OBDII scanner, but it is important to diagnose and address the underlying issue to prevent the code from reappearing.
9. How long does it usually take to repair the exhaust gas temperature sensor circuit issue?
- The repair time can vary depending on the complexity of the issue and the availability of parts. It may range from a few hours to a full day.
10. Will the OBDII code P246A GMC go away on its own?
- The code may not disappear on its own, especially if the underlying issue with the exhaust gas temperature sensor circuit is not addressed. It is recommended to diagnose and repair the problem promptly.
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