AutoCodes – Chevrolet – P2470 2018 Chevrolet Silverado

P2470 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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 227

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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado - Exhaust Gas Temperature Sensor 4 Circuit Low Voltage - AutoCodes.com — P2470 2018 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 4 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2470 2018 Chevrolet Silverado?

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 2018 Chevrolet Silverado?

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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado code?

Need more information on how to fix the P2470 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 2018 Chevrolet Silverado Code

What does the OBDII code P2470 mean on a 2018 Chevrolet Silverado?

1. P2470 indicates that the Exhaust Gas Temperature (EGT) Sensor 4 is reporting a circuit low voltage issue, which may affect the vehicleâ€™s emissions system monitoring. 2.

What are the common symptoms of the P2470 code in a Chevy Silverado?

Common symptoms include the check engine light turning on, reduced fuel efficiency, potential engine performance issues, and, in some cases, the truck may enter limp mode. 3.

What causes the P2470 code on a 2018 Chevy Silverado?

The most common causes are a faulty EGT sensor 4, damaged wiring or connectors in the EGT sensor circuit, or corrosion at the sensor connections. 4.

Can I drive my 2018 Chevy Silverado with the P2470 code?

While the vehicle may still be drivable, itâ€™s not recommended to ignore the issue, as it can lead to increased emissions or damage to the exhaust system over time. 5.

How do I diagnose the P2470 code on my Silverado?

Start by inspecting the EGT sensor 4 and its wiring for any visible damage or corrosion. Use a multimeter to check for proper voltage and continuity in the circuit. 6.

How do I fix the P2470 code on a 2018 Chevrolet Silverado?

Repairs may involve replacing the faulty EGT sensor, repairing or replacing damaged wiring, or cleaning corroded connectors. 7.

Where is Exhaust Gas Temperature Sensor 4 located on a Chevy Silverado?

The EGT Sensor 4 is typically located in the exhaust system, downstream of the diesel particulate filter (DPF). Refer to your vehicleâ€™s service manual for the exact location. 8.

How much does it cost to fix the P2470 code on a Silverado?

Repair costs can range from $150 to $400, depending on whether you need to replace the sensor, repair wiring, or address other related issues. 9.

Can a bad EGT sensor cause damage to my Silverado?

Yes, if left unresolved, a faulty EGT sensor can lead to improper exhaust system function, potentially damaging the DPF or other components. 10.

Will clearing the P2470 code fix the problem?

Clearing the code without addressing the underlying issue will only temporarily remove the check engine light. The code will reappear if the problem persists.