← View Generic C3873 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

C3873: C3873: Rear Suspension Strut Friction Bushing Fault

on 2021 Honda PASSPORT

Fix Cost
$150 - $300
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
❌ No
Pro recommended
Your Vehicle
2021 Honda
PASSPORT
⚠️

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 C3873 Mean on 2021 Honda PASSPORT?

This code indicates a faulty rear suspension strut friction bushing, which can cause uneven tire wear, vibrations, and reduced handling.
⚠️

Symptoms

  • • Uneven tire wear
  • • vibrations
  • • reduced handling
  • • clunking or rattling noises from the rear suspension
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Common Causes

  • • Faulty rear suspension strut friction bushing
  • • worn or damaged bushing
  • • loose or worn-out suspension components
🛠️

How to Fix C3873 on 2021 Honda PASSPORT

Replace the rear suspension strut friction bushing, inspect and replace any worn or damaged suspension components, adjust or replace the rear suspension struts if necessary

🔧

Need Maintenance Info for Your PASSPORT?

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

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Parts for 2021 Honda PASSPORT

Rear suspension strut friction bushing Shop ↗ Suspension strut mounting hardware Shop ↗

Essential Tool

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Related Diagnostic Codes

Other codes that may appear with C3873

C3871 Sequential Code

C3871: ABS System Malfunction

High
C3872 Sequential Code

C3872: Brake System Pressure Sensor Circuit Malfunction

Medium
C3874 Sequential Code

C3874: Steering Column Position Sensor Circuit Malfunction

Medium
C3875 Sequential Code

C3875: Electronic Stability Control (ESC) Malfunction

Medium

💡 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