AutoCodes – Chevrolet – P0545 2015 Chevrolet Silverado

P0545 2015 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 1 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) 1, Exhaust Gas Temperature Sensor 1 harness is open or shorted, Exhaust Gas Temperature Sensor 1 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: P0545 2015 Chevrolet Silverado indicates Exhaust Gas Temperature Sensor 1 Circuit Low Voltage.
Common causes: Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) 1, Exhaust Gas Temperature Sensor 1 harness is open or shorted, Exhaust Gas Temperature Sensor 1 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 646

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0545 2015 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 P0545 2015 Chevrolet Silverado - Exhaust Gas Temperature Sensor 1 Circuit Low Voltage - AutoCodes.com — P0545 2015 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 1 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0545 2015 Chevrolet Silverado?

Faulty Exhaust Gas Temperature Sensor (EGTS) 1
Exhaust Gas Temperature Sensor 1 harness is open or shorted
Exhaust Gas Temperature Sensor 1 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0545 2015 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 P0545 2015 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 P0545 2015 Chevrolet Silverado code?

Need more information on how to fix the P0545 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0545 2015 Chevrolet Silverado 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 P0545 2015 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P0545 in a 2015 Chevrolet Silverado?

The common symptoms of OBDII code P0545 in a 2015 Chevrolet Silverado include poor engine performance, decreased fuel efficiency, and potential illumination of the check engine light.

2. What does the OBDII code P0545 Exhaust Gas Temperature Sensor 1 Circuit Low Voltage indicate in a 2015 Chevrolet Silverado?

The OBDII code P0545 indicates that there is a low voltage condition detected in the exhaust gas temperature sensor 1 circuit in a 2015 Chevrolet Silverado.

3. What are the possible causes of OBDII code P0545 in a 2015 Chevrolet Silverado?

Possible causes of OBDII code P0545 in a 2015 Chevrolet Silverado may include a faulty exhaust gas temperature sensor, damaged wiring or connectors in the sensor circuit, or issues with the engine control module.

4. How can I diagnose OBDII code P0545 in my 2015 Chevrolet Silverado?

Diagnosing OBDII code P0545 in a 2015 Chevrolet Silverado involves using a scan tool to retrieve the code, inspecting the exhaust gas temperature sensor and its wiring for damage, and testing the sensor's resistance and voltage output.

5. Can I continue driving my 2015 Chevrolet Silverado with OBDII code P0545?

It is not recommended to continue driving your 2015 Chevrolet Silverado with OBDII code P0545, as it can lead to further engine damage and potential safety hazards. It's best to address the issue promptly.

6. How can I repair OBDII code P0545 in my 2015 Chevrolet Silverado?

Repairing OBDII code P0545 in a 2015 Chevrolet Silverado involves replacing the faulty exhaust gas temperature sensor, repairing any damaged wiring or connectors, and clearing the trouble code from the engine control module.

7. Are there any tips to prevent OBDII code P0545 from recurring in my 2015 Chevrolet Silverado?

To prevent OBDII code P0545 from recurring in your 2015 Chevrolet Silverado, it's essential to perform regular vehicle maintenance, address any engine performance issues promptly, and use quality replacement parts when needed.

8. How much does it typically cost to repair OBDII code P0545 in a 2015 Chevrolet Silverado?

The cost to repair OBDII code P0545 in a 2015 Chevrolet Silverado can vary depending on the specific issue, but it may range from $100 to $300, including parts and labor.

9. Can a DIY enthusiast fix OBDII code P0545 in a 2015 Chevrolet Silverado?

A DIY enthusiast with the necessary tools and automotive knowledge may be able to fix OBDII code P0545 in a 2015 Chevrolet Silverado, but it's recommended to consult a professional mechanic for proper diagnosis and repair.

10. Is OBDII code P0545 a common issue in 2015 Chevrolet Silverado vehicles?

While not extremely common, OBDII code P0545 can occur in 2015 Chevrolet Silverado vehicles due to various factors such as sensor wear, wiring issues, or electronic component failures. Regular maintenance can help prevent such issues.