AutoCodes – Chevrolet – P0545 2014 Chevrolet Silverado

P0545 2014 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 2014 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.

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Code Popularity 658

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 P0545 2014 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 2014 Chevrolet Silverado - Exhaust Gas Temperature Sensor 1 Circuit Low Voltage - AutoCodes.com — P0545 2014 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 1 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0545 2014 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 2014 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 2014 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 2014 Chevrolet Silverado code?

Need more information on how to fix the P0545 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0545 2014 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 2014 Chevrolet Silverado Code

What does the OBDII code P0545 mean for a 2014 Chevrolet Silverado?

The OBDII code P0545 indicates that there is a low voltage signal from the Exhaust Gas Temperature (EGT) Sensor 1 circuit, which is responsible for monitoring the temperature of the exhaust gases.

What are the common symptoms associated with OBDII code P0545?

Common symptoms include the Check Engine Light being illuminated, reduced engine performance, increased emissions, and potentially poor fuel economy.

What can cause the P0545 code to appear in a Chevrolet Silverado?

Possible causes for the P0545 code include a faulty EGT sensor, damaged wiring or connectors in the sensor circuit, a short circuit to ground, or issues with the Engine Control Module (ECM).

How can I diagnose the P0545 code?

To diagnose the P0545 code, you can start by visually inspecting the EGT sensor and its wiring for damage. Use a multimeter to check the sensor's resistance and voltage, and ensure the connections are secure and free of corrosion.

What are some common repair tips for fixing the P0545 code?

Common repair tips include replacing the faulty EGT sensor, repairing any damaged wiring or connectors, ensuring proper connections, and clearing the code to see if it reappears after repairs.

Can I drive my Silverado with the P0545 code?

While you can technically drive with the P0545 code, it is not advisable as it may lead to reduced performance and increased emissions. Itâ€™s best to address the code promptly to avoid further issues.

Will clearing the P0545 code fix the problem?

Clearing the P0545 code will not fix the underlying issue. If the cause is not resolved, the code will likely return after a short time.

How much does it typically cost to repair the P0545 code?

The cost to repair the P0545 code can vary widely depending on the cause, ranging from $100 to $300 for sensor replacement, but it could be higher if there are additional wiring issues.

Is the P0545 code serious?

Yes, the P0545 code is considered serious because it can affect engine performance and emissions. Itâ€™s important to address the issue to maintain the vehicle's efficiency and compliance with emission standards.