AutoCodesHonda – P0453 Honda

P0453 Honda Code - Fuel Tank Pressure Sensor High Voltage

Quick Answer

The Fuel Tank Pressure (FTP) pressure sensor detects pressure in the purge line. Common causes include Faulty Fuel Tank Pressure 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 Honda indicates Fuel Tank Pressure Sensor High Voltage.
Common causes
Common causes include Faulty Fuel Tank Pressure 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 35,629
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 27, 2022
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Code P0453 Honda Description

The Fuel Tank Pressure (FTP) pressure sensor detects pressure in the purge line. The sensor output voltage to the Engine Control Module (ECM) increases as pressure increases. The Diagnostic Trouble Code (DTC) will be set when a high voltage signal from the fuel tank pressure sensor is sent to Engine Control Module.
OBDII Code P0453 Honda - Fuel Tank Pressure Sensor High Voltage - AutoCodes.com
P0453 Honda Code - Fuel Tank Pressure Sensor High Voltage

What are the Possible Causes of the DTC P0453 Honda?

  • Faulty Fuel Tank Pressure 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 Honda?

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 Honda 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.

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Information for Specific Honda Models

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.

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