← View Generic C1387 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

C1387: C1387: Brake System Pressure Sensor Circuit Malfunction

on 2021 Honda PASSPORT

Fix Cost

$100 - $300

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 C1387 Mean on 2021 Honda PASSPORT?

The brake system pressure sensor circuit has malfunctioned, indicating a problem with the brake system's ability to regulate 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 fluid lines
• air in brake system

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How to Fix C1387 on 2021 Honda PASSPORT

1. Check brake fluid level and top off as needed. 2. Bleed brake system to remove air. 3. Replace faulty brake pressure sensor.

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Need Maintenance Info for Your PASSPORT?

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Parts for 2021 Honda PASSPORT

Brake pressure sensor Shop ↗ Brake fluid Shop ↗

Essential Tool

Must Have

OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with C1387

C1385 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