← View Generic C0373 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

C0373: C0373: Rear Suspension Height Sensor Circuit Malfunction

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 C0373 Mean on 2021 Honda PASSPORT?

The C0373 code indicates a problem with the rear suspension height sensor circuit, which monitors the vehicle's suspension height and sends signals to the onboard computer.
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Symptoms

  • • Rear end sag
  • • uneven tire wear
  • • difficulty steering
  • • and reduced vehicle stability
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Common Causes

  • • Faulty rear suspension height sensor
  • • wiring issues
  • • or sensor connector problems
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How to Fix C0373 on 2021 Honda PASSPORT

1. Disconnect the battery to prevent any accidental deployments of the airbags. 2. Locate the rear suspension height sensor and inspect it for any signs of damage or corrosion. 3. Check the wiring and connector for any signs of damage or corrosion. 4. Replace the faulty sensor or wiring as needed. 5. Clear the code and test drive the vehicle to ensure the issue is resolved.

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Parts for 2021 Honda PASSPORT

Rear suspension height sensor Shop ↗ Wiring harness Shop ↗ Sensor connector Shop ↗

Essential Tool

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Related Diagnostic Codes

Other codes that may appear with C0373

C0371 Sequential Code

C0371: ABS System Malfunction

Medium
C0372 Sequential Code

C0372: Brake System Pressure Sensor Circuit Malfunction

Medium
C0374 Sequential Code

C0374: Steering Column Position Sensor Circuit Malfunction

High
C0375 Sequential Code

C0375: Electronic Stability Control (ESC) Malfunction

High

💡 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