AutoCodes – Chevrolet – P2473 Chevrolet

P2473 Chevrolet Code - Exhaust Gas Temperature Sensor Circuit Bank 2 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 2 Sensor 4, Exhaust Gas Temperature Sensor Bank 2 Sensor 4 harness is open or shorted, Exhaust Gas Temperature Sensor Bank 2 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: P2473 Chevrolet indicates Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 4.
Common causes: Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 2 Sensor 4, Exhaust Gas Temperature Sensor Bank 2 Sensor 4 harness is open or shorted, Exhaust Gas Temperature Sensor Bank 2 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 1,677

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 P2473 Chevrolet 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 P2473 OBDII code when the Exhaust Gas Temperature Sensor is out of factory specifications.

OBDII Code P2473 Chevrolet - Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 4 - AutoCodes.com — P2473 Chevrolet Code - Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 4

What does this mean?

What are the Possible Causes of the DTC P2473 Chevrolet?

Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 2 Sensor 4
Exhaust Gas Temperature Sensor Bank 2 Sensor 4 harness is open or shorted
Exhaust Gas Temperature Sensor Bank 2 Sensor 4 circuit poor electrical connection
Exhaust leaks
Excessive particulate matter buildup on sensor

How to Fix the DTC P2473 Chevrolet?

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 P2473 Chevrolet 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 P2473 Chevrolet code?

Need more information on how to fix the P2473 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2473 Chevrolet 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 P2473 Chevrolet Code

1. What are the common symptoms of OBDII code P2473 in a Chevrolet?

- Common symptoms include poor engine performance, reduced fuel efficiency, and illuminated Check Engine Light.

2. What does the OBDII code P2473 Chevrolet indicate?

- The code P2473 indicates a problem with the Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 4.

3. What are the possible causes of OBDII code P2473 in a Chevrolet?

- Possible causes include a faulty exhaust gas temperature sensor, wiring issues, or a malfunctioning sensor circuit.

4. How can I diagnose the OBDII code P2473 in my Chevrolet?

- Diagnosis typically involves using an OBDII scanner to read the code, checking the sensor and its wiring for damage, and testing the sensor's resistance.

5. Can I still drive my Chevrolet with OBDII code P2473?

- It is not recommended to drive your vehicle with this code as it can lead to further damage and poor performance.

6. How can I repair OBDII code P2473 in my Chevrolet?

- Repair involves replacing the faulty Exhaust Gas Temperature Sensor Bank 2 Sensor 4 and addressing any wiring issues or circuit malfunctions.

7. Are there any DIY tips for fixing OBDII code P2473 in a Chevrolet?

- DIY tips include ensuring proper sensor installation, checking for loose connections, and following the manufacturer's repair guidelines.

8. How much does it cost to fix OBDII code P2473 in a Chevrolet?

- The cost of repair can vary depending on the extent of the issue, but it typically involves the cost of a new sensor and labor for installation.

9. Can OBDII code P2473 cause damage to my Chevrolet if not addressed promptly?

- Ignoring this code can lead to increased emissions, reduced engine efficiency, and potential damage to other components over time.

10. How long does it take to repair OBDII code P2473 in a Chevrolet?

- Repair time can vary based on the mechanic's workload and availability of parts, but it generally takes a few hours to replace the sensor and address any related issues.