AutoCodesGMC – P0453 2016 GMC Sierra

P0453 2016 GMC Sierra 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 2016 GMC Sierra 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 267
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 2016 GMC Sierra 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 2016 GMC Sierra - Fuel Tank Pressure Sensor Circuit High Voltage  - AutoCodes.com
P0453 2016 GMC Sierra Code - Fuel Tank Pressure Sensor Circuit High Voltage

What are the Possible Causes of the DTC P0453 2016 GMC Sierra?

  • 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 2016 GMC Sierra?

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 2016 GMC Sierra 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 2016 GMC Sierra code?

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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 2016 GMC Sierra Code

1. What does the OBDII code P0453 mean on a 2016 GMC Sierra?

Code P0453 indicates that the fuel tank pressure sensor circuit is reporting a voltage that is higher than the expected range.

2. What are the common symptoms of code P0453 in a 2016 GMC Sierra?

Symptoms may include an illuminated check engine light, difficulty filling the fuel tank, fuel odor near the vehicle, or failed emissions testing.

3. What causes the P0453 code on a 2016 GMC Sierra?

Common causes include a faulty fuel tank pressure sensor, damaged wiring or connectors in the sensor circuit, a clogged EVAP vent valve, or issues with the vehicle's ECM.

4. Can I drive my 2016 GMC Sierra with a P0453 code?

While the vehicle may still be drivable, it's best to address the issue promptly to ensure proper EVAP system function and prevent potential fuel system damage or emissions problems.

5. How do I diagnose the P0453 code on a 2016 GMC Sierra?

Start by checking the fuel tank pressure sensor and its wiring for damage or loose connections, then use a scan tool to monitor sensor voltage and compare it to manufacturer specifications.

6. How is the P0453 code fixed on a 2016 GMC Sierra?

Repairs may include replacing the fuel tank pressure sensor, repairing damaged wiring or connectors, cleaning or replacing the EVAP vent valve, or updating the ECM software if needed.

7. How much does it cost to repair the P0453 code on a 2016 GMC Sierra?

Repair costs can vary but typically range from $150 to $400, depending on whether parts like the fuel tank pressure sensor or EVAP components need replacement.

8. Will a faulty gas cap cause the P0453 code on a 2016 GMC Sierra?

While a loose or faulty gas cap can cause other EVAP-related codes, it is unlikely to cause a P0453 specifically, as this code relates to sensor voltage.

9. What tools are needed to fix the P0453 code on a 2016 GMC Sierra?

Necessary tools may include a scan tool or code reader, a multimeter for circuit testing, and basic hand tools for sensor replacement.

10. Can the P0453 code clear itself on a 2016 GMC Sierra?

The code is unlikely to clear itself without addressing the underlying issue. Once the problem is fixed, the code can be cleared using a scan tool.

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