AutoCodesChevrolet – P0453 2017 Chevrolet Silverado

P0453 2017 Chevrolet Silverado Code - Fuel Tank Pressure Sensor Circuit High Voltage

Quick Answer

The fuel tank pressure sensor measures vapor pressure or vacuum in the Evaporative Emission (EVAP) system. Common causes include Faulty Fuel Tank Pressure (FTP) Sensor, Fuel Tank Pressure Sensor harness is open or shorted, Fuel Tank Pressure Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0453 2017 Chevrolet Silverado indicates Fuel Tank Pressure Sensor Circuit High Voltage .
Common causes
Common causes include Faulty Fuel Tank Pressure (FTP) Sensor, Fuel Tank Pressure Sensor harness is open or shorted, Fuel Tank Pressure Sensor circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code Popularity 608
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 12, 2024
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Code P0453 2017 Chevrolet Silverado Description

The fuel tank pressure sensor measures vapor pressure or vacuum in the Evaporative Emission (EVAP) system. The Engine Control Module (ECM) supplies a 5 V reference and a low reference circuit to the fuel tank pressure sensor. The fuel tank pressure sensor signal voltage varies depending on EVAP system pressure or vacuum. The control module also uses this fuel tank pressure signal to determine atmospheric pressure for use in the engine-off small leak test, DTC P0442. Before using this signal as an atmospheric reference, it must first be re-zeroed. The Diagnostic Trouble Code (DTC) will be set if the fuel tank pressure sensor voltage is more than 4.85 V for greater than 10 s.
OBDII Code P0453 2017 Chevrolet Silverado - Fuel Tank Pressure Sensor Circuit High Voltage  - AutoCodes.com
P0453 2017 Chevrolet Silverado Code - Fuel Tank Pressure Sensor Circuit High Voltage

What are the Possible Causes of the DTC P0453 2017 Chevrolet Silverado?

  • Faulty Fuel Tank Pressure (FTP) Sensor
  • Fuel Tank Pressure Sensor harness is open or shorted
  • Fuel Tank Pressure Sensor circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P0453 2017 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0453 2017 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 P0453 2017 Chevrolet Silverado code?

Need more information on how to fix the P0453 2017 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 P0453 2017 Chevrolet Silverado Code

1. What does OBDII code P0453 mean on a 2017 Chevrolet Silverado?

P0453 indicates that the fuel tank pressure sensor is reporting a voltage signal higher than the expected range, suggesting an issue in the EVAP (Evaporative Emission Control) system.

2. What are the common symptoms of code P0453 in a 2017 Chevrolet Silverado?

Symptoms may include an illuminated check engine light, difficulty refueling due to pressure buildup, increased fuel odor, and potentially reduced fuel efficiency.

3. What causes the P0453 code on a 2017 Chevrolet Silverado?

Common causes include a faulty fuel tank pressure sensor, damaged wiring or connectors in the sensor circuit, or a malfunctioning EVAP system component.

4. Can a loose gas cap trigger the P0453 code?

A loose or damaged gas cap is unlikely to trigger P0453 directly but could contribute to EVAP system issues. It’s still good practice to check the gas cap when diagnosing EVAP-related codes.

5. How do I diagnose the P0453 code on my 2017 Chevrolet Silverado?

Start by inspecting the fuel tank pressure sensor and its wiring for damage. Use a multimeter to test the sensor's voltage output and compare it to manufacturer specifications.

6. How do I fix the P0453 code on a 2017 Chevrolet Silverado?

Repairs may involve replacing a faulty fuel tank pressure sensor, repairing damaged wiring or connectors, or addressing leaks or blockages in the EVAP system.

7. Is it safe to drive my 2017 Chevrolet Silverado with the P0453 code?

While the truck may still be drivable, ignoring this code can lead to worsening EVAP system issues, higher emissions, or difficulty passing emissions tests.

8. How much does it cost to fix the P0453 code on a 2017 Chevrolet Silverado?

Repair costs can vary but typically range from $150 to $400, depending on whether the issue is a faulty sensor, wiring repair, or another EVAP-related problem.

9. Can a bad fuel tank pressure sensor cause other problems?

Yes, a bad sensor can lead to inaccurate fuel vapor pressure readings, potentially affecting the EVAP system's operation and triggering additional diagnostic trouble codes.

10. Will clearing the code P0453 fix the problem on my 2017 Chevrolet Silverado?

Clearing the code will turn off the check engine light temporarily but won’t resolve the underlying issue. The code will likely return until the root cause is addressed.

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