AutoCodes – Acura – P1451 Acura

P1451 Acura Code - Two Way Valve Bypass Valve Control Circuit High Voltage

Quick Answer

P1451 Acura indicates Two Way Valve Bypass Valve Control Circuit High Voltage. Common causes include Faulty Two Way Valve Bypass Valve, Two Way Valve Bypass Valve harness is open or shorted, Two Way Valve Bypass Valve 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: P1451 Acura indicates Two Way Valve Bypass Valve Control Circuit High Voltage.
Common causes: Common causes include Faulty Two Way Valve Bypass Valve, Two Way Valve Bypass Valve harness is open or shorted, Two Way Valve Bypass Valve 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 5,087

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 23, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1451 Acura Description

OBDII Code P1451 Acura - Two Way Valve Bypass Valve Control Circuit High Voltage - AutoCodes.com — P1451 Acura Code - Two Way Valve Bypass Valve Control Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1451 Acura?

Faulty Two Way Valve Bypass Valve
Two Way Valve Bypass Valve harness is open or shorted
Two Way Valve Bypass Valve circuit poor electrical connection

How to Fix the DTC P1451 Acura?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1451 Acura 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 P1451 Acura 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.