AutoCodes – GMC – P2468 GMC

P2468 GMC Code - Exhaust Gas Temperature Sensor Circuit Low 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
P2468 GMC indicates Exhaust Gas Temperature Sensor Circuit Low 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.
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Code Popularity 1,285
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 15, 2019
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Code P2468 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 P2468 OBDII code when the Exhaust Gas Temperature Sensor is out of factory specifications.
OBDII Code P2468 GMC - Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 3 - AutoCodes.com
P2468 GMC Code - Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 3

What are the Possible Causes of the DTC P2468 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 P2468 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 P2468 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 P2468 GMC code?

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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 P2468 GMC Code

1. What are the common symptoms of OBDII code P2468 GMC?

- Common symptoms include reduced engine performance, rough idling, increased fuel consumption, and the illumination of the Check Engine Light.

2. What does the OBDII code P2468 GMC mean?

- The code indicates a low circuit voltage condition in the exhaust gas temperature sensor for Bank 2 Sensor 3 in a GMC vehicle.

3. What are the possible causes of OBDII code P2468 GMC?

- Possible causes include a faulty exhaust gas temperature sensor, damaged wiring or connectors, a blown fuse, or issues with the engine control module.

4. How can I diagnose OBDII code P2468 GMC?

- Diagnosing the code involves using an OBDII scanner to retrieve the fault codes, checking the exhaust gas temperature sensor and its circuit for continuity and proper voltage, and inspecting related components for any visible damage.

5. Can I continue to drive my GMC vehicle with OBDII code P2468?

- It is not recommended to drive the vehicle with this code present, as it can lead to potential engine damage or reduced performance. It is best to address the issue promptly.

6. How can I repair OBDII code P2468 GMC?

- Repairs may involve replacing the exhaust gas temperature sensor, repairing damaged wiring or connectors, replacing blown fuses, or reprogramming the engine control module if necessary.

7. Is it possible to reset OBDII code P2468 GMC without fixing the underlying issue?

- While clearing the code with an OBDII scanner may temporarily turn off the Check Engine Light, the issue will likely reoccur until the root cause is addressed.

8. Are there any DIY tips for troubleshooting OBDII code P2468 GMC?

- DIY enthusiasts can start by checking the exhaust gas temperature sensor connections, inspecting the wiring for damage, and ensuring the sensor is functioning correctly before seeking professional help if needed.

9. Will OBDII code P2468 GMC cause emissions test failure?

- Yes, this code can cause your vehicle to fail emissions testing due to the faulty exhaust gas temperature sensor affecting the vehicle's emissions control system.

10. How much does it typically cost to repair OBDII code P2468 GMC?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from around $100 to $300 for parts and labor if no major components need replacement.

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