AutoCodes – GMC – P2470 2016 GMC Sierra

P2470 2016 GMC Sierra Code - Exhaust Gas Temperature Sensor 4 Circuit Low Voltage

Quick Answer

The Exhaust Gas Temperature sensors (EGTS) are variable resistors that measure the temperature of the exhaust gas. Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) 4, Exhaust Gas Temperature Sensor 4 harness is open or shorted, Exhaust Gas Temperature 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: P2470 2016 GMC Sierra indicates Exhaust Gas Temperature Sensor 4 Circuit Low Voltage.
Common causes: Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) 4, Exhaust Gas Temperature Sensor 4 harness is open or shorted, Exhaust Gas Temperature 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 201

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 Jul 03, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P2470 2016 GMC Sierra Description

The Exhaust Gas Temperature sensors (EGTS) are variable resistors that measure the temperature of the exhaust gas. Exhaust temperature sensor 1 is the first exhaust temperature sensor in the exhaust system, the following exhaust temperature sensors are counted upward from the engine outlet to the exhaust system end. The Engine Control Module (ECM) supplies 5 V to the exhaust gas temperature signal circuit and supplies a ground to the low reference circuit. The exhaust gas temperature sensor temperature information is used by the ECM during the exhaust gas particulate filter cleaning process. The Diagnostic Trouble Code (DTC) will ve set when the ECM detects that the exhaust gas temperature sensor is less than 158 Ω for greater than 2 s.

OBDII Code P2470 2016 GMC Sierra - Exhaust Gas Temperature Sensor 4 Circuit Low Voltage - AutoCodes.com — P2470 2016 GMC Sierra Code - Exhaust Gas Temperature Sensor 4 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2470 2016 GMC Sierra?

Faulty Exhaust Gas Temperature Sensor (EGTS) 4
Exhaust Gas Temperature Sensor 4 harness is open or shorted
Exhaust Gas Temperature Sensor 4 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P2470 2016 GMC Sierra?

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 does this mean?

Code Tech Notes

After starting the engine, the exhaust gas temperature sensor temperature should rise steadily, then stabilize after the engine reaches operating temperature. Exhaust gas temperature sensors may fail intermittently while operating under extreme temperatures. Review the Freeze Frame/Failure Records to verify the failure criteria.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2470 2016 GMC Sierra 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 P2470 2016 GMC Sierra code?

Need more information on how to fix the P2470 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the 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 P2470 2016 GMC Sierra Code

1. What are the common symptoms of OBDII code P2470 in a 2016 GMC Sierra?

The common symptoms of OBDII code P2470 include poor engine performance, reduced fuel efficiency, and the illumination of the check engine light.

2. What does the Exhaust Gas Temperature Sensor 4 Circuit Low Voltage mean in a GMC Sierra?

The code P2470 indicates that the Exhaust Gas Temperature Sensor 4 circuit is reporting a low voltage condition, which can affect the proper functioning of the emissions control system.

3. What are the possible causes of OBDII code P2470 in a 2016 GMC Sierra?

Possible causes of code P2470 include a faulty Exhaust Gas Temperature Sensor 4, damaged wiring or connectors in the sensor circuit, or issues with the engine control module.

4. How can I diagnose the cause of OBDII code P2470 in my GMC Sierra?

Diagnosing code P2470 typically involves inspecting the Exhaust Gas Temperature Sensor 4 and its wiring for any visible damage, testing the sensor's voltage output, and checking for any related trouble codes.

5. Can I continue driving my GMC Sierra with OBDII code P2470?

It is not recommended to continue driving your GMC Sierra with code P2470, as it can lead to further damage to the emissions system and potentially affect the vehicle's performance.

6. How can I repair OBDII code P2470 in my 2016 GMC Sierra?

Repairing code P2470 may involve replacing the Exhaust Gas Temperature Sensor 4, repairing any damaged wiring or connectors, or reprogramming the engine control module to address the low voltage issue.

7. Is it possible to reset OBDII code P2470 in a GMC Sierra without fixing the underlying issue?

While you can clear the code temporarily, it is important to address the underlying issue causing code P2470 to prevent further problems and ensure the proper functioning of your vehicle's emissions system.

8. How much does it cost to repair OBDII code P2470 in a 2016 GMC Sierra?

The cost of repairing code P2470 can vary depending on the specific cause of the issue, but it may involve parts and labor expenses ranging from $100 to $300 or more.

9. Can a DIY enthusiast fix OBDII code P2470 in a GMC Sierra?

Depending on your mechanical skills and access to tools, a DIY enthusiast may be able to address code P2470 by replacing the Exhaust Gas Temperature Sensor 4 or repairing damaged wiring, but professional diagnosis and repair are recommended for accurate resolution.

10. Will OBDII code P2470 cause my GMC Sierra to fail an emissions test?

Yes, code P2470 can cause your GMC Sierra to fail an emissions test due to the malfunction in the Exhaust Gas Temperature Sensor 4 circuit, which is crucial for emissions control and compliance.