AutoCodes – GMC – P247B GMC

P247B GMC Code - Exhaust Gas Temperature Out of Range Bank 1 Sensor 4

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 4, Exhaust Gas Temperature Sensor Bank 1 Sensor 4 harness is open or shorted, Exhaust Gas Temperature Sensor Bank 1 Sensor 4 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: P247B GMC indicates Exhaust Gas Temperature Out of Range Bank 1 Sensor 4.
Common causes: Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 1 Sensor 4, Exhaust Gas Temperature Sensor Bank 1 Sensor 4 harness is open or shorted, Exhaust Gas Temperature Sensor Bank 1 Sensor 4 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.

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Code Popularity 1,310

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jan 15, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P247B GMC Description

The Powertrain Control Module (PCM) continuously monitors the Exhaust Gas Temperature Sensor (EGTS) for proper circuit continuity and out of range high values. The EGTS is located in front of the Diesel Oxidation Catalyst (DOC) and/or in front of the Diesel Particulate Filter (DPF). The EGTS detects exhaust gas temperature and converts it into a voltage and feeds back to the PCM with the voltage signal in order to control engine conditions to effectively reduce emissions. The PCM sets the P247B OBDII code when the Exhaust Gas Temperature Sensor is out of factory specifications.

OBDII Code P247B GMC - Exhaust Gas Temperature Out of Range Bank 1 Sensor 4 - AutoCodes.com — P247B GMC Code - Exhaust Gas Temperature Out of Range Bank 1 Sensor 4

What does this mean?

What are the Possible Causes of the DTC P247B GMC?

Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 1 Sensor 4
Exhaust Gas Temperature Sensor Bank 1 Sensor 4 harness is open or shorted
Exhaust Gas Temperature Sensor Bank 1 Sensor 4 circuit poor electrical connection
Exhaust leaks
Excessive particulate matter buildup on sensor

How to Fix the DTC P247B 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 P247B 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 P247B GMC code?

Need more information on how to fix the P247B GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P247B GMC code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P247B GMC Code

1. What are the common symptoms of OBDII code P247B GMC (Exhaust Gas Temperature Out of Range Bank 1 Sensor 4)?

- Common symptoms include reduced engine performance, decreased fuel efficiency, and an illuminated check engine light.

2. What can cause OBDII code P247B GMC to trigger?

- This code is typically triggered by a faulty exhaust gas temperature sensor or issues with the sensor's wiring or connectors.

3. How can I diagnose the cause of OBDII code P247B GMC?

- You can diagnose the cause by visually inspecting the sensor and its connections, testing the sensor for proper functionality, and checking for any exhaust leaks.

4. What are the possible repair options for OBDII code P247B GMC?

- Repair options may include replacing the exhaust gas temperature sensor, repairing or replacing damaged wiring or connectors, and fixing any exhaust leaks.

5. Can driving with OBDII code P247B GMC cause further damage to the vehicle?

- Continuing to drive with this code may lead to increased emissions, reduced engine efficiency, and potential damage to the catalytic converter or other engine components.

6. How urgent is it to address OBDII code P247B GMC?

- It is recommended to address this code promptly to prevent further damage to the vehicle and ensure optimal engine performance.

7. Is it possible to reset OBDII code P247B GMC without fixing the underlying issue?

- While you can clear the code with an OBDII scanner, it will likely reappear if the underlying issue is not resolved.

8. Can a DIY enthusiast fix OBDII code P247B GMC?

- Depending on your automotive repair skills, you may be able to address this code yourself by following repair guides and using the necessary tools.

9. How much does it typically cost to repair OBDII code P247B GMC at a professional auto repair shop?

- The cost of repair can vary depending on the specific cause of the code, but it may range from $100 to $300 or more, including parts and labor.

10. Are there any preventive measures to avoid OBDII code P247B GMC in the future?

- Regularly inspecting and maintaining the exhaust gas temperature sensor, as well as ensuring proper engine performance and emissions, can help prevent this code from appearing.