← View Generic P0515 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

P0515: P0515: Idle Air Control (IAC) Valve Circuit Malfunction

on 2021 Honda PASSPORT

Fix Cost

$50 - $200

Parts & Labor

Difficulty

3/5

1-2 hours

DIY Possible?

✅ Yes

Save money

Your Vehicle

2021 Honda

PASSPORT

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Important for 2021 Honda PASSPORT Owners

Before starting repairs, verify which engine your 2021 Honda PASSPORT has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does P0515 Mean on 2021 Honda PASSPORT?

The P0515 trouble code indicates a malfunction in the idle air control (IAC) valve circuit, which regulates engine idle speed and air/fuel mixture.

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Symptoms

• Rough idle
• hesitation
• stalling
• or difficulty starting

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Common Causes

• Faulty IAC valve
• vacuum leaks
• clogged air filter
• faulty throttle position sensor

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How to Fix P0515 on 2021 Honda PASSPORT

1. Check and clean the IAC valve and throttle body. 2. Replace the IAC valve if faulty. 3. Inspect and repair vacuum leaks. 4. Replace the air filter if dirty.

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Need Maintenance Info for Your PASSPORT?

Get oil capacity, filter specs, and torque settings for your specific 2021 Honda PASSPORT.

View 2021 Honda PASSPORT Specs

Parts for 2021 Honda PASSPORT

Idle Air Control (IAC) valve Shop ↗ vacuum hose Shop ↗ air filter Shop ↗

Essential Tool

Must Have

OBD2 Scanner

Read & clear codes on your 2021 Honda PASSPORT

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Related Diagnostic Codes

Other codes that may appear with P0515

P0513 Sequential Code

💡 Why These Codes Are Related:

• Similar Issues: Same root cause or component failure
• Related Problems: Often occur together due to system interactions
• Sequential Codes: Progressive failure stages or multiple sensors
• Same System: Components within the same automotive system