← View Generic C0351 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

C0351: C0351: Brake System Pressure Sensor Circuit Malfunction

on 2021 Honda PASSPORT

Fix Cost

$100 - $500

Parts & Labor

Difficulty

3/5

1-2 hours

DIY Possible?

❌ No

Pro recommended

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 C0351 Mean on 2021 Honda PASSPORT?

The brake system pressure sensor circuit has malfunctioned, indicating a problem with the brake system's hydraulic pressure.

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Symptoms

• Spongy brake pedal
• low brake fluid level
• brake warning light on

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Common Causes

• Faulty brake pressure sensor
• clogged brake lines
• air in brake system
• faulty brake master cylinder

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How to Fix C0351 on 2021 Honda PASSPORT

1. Check brake fluid level and top off if necessary. 2. Bleed brake system to remove air. 3. Replace faulty brake pressure sensor. 4. Inspect and clean or replace clogged brake lines. 5. Replace faulty brake master cylinder.

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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

Brake pressure sensor Shop ↗ Brake fluid Shop ↗ Brake line cleaning kit 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 C0351

C0349 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