← View Generic C1381 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

C1381: C1381: Rear Suspension Control Module (RSCM) Fault

on 2021 Honda PASSPORT

Fix Cost
$500 - $1500
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 C1381 Mean on 2021 Honda PASSPORT?

The C1381 code indicates a fault in the rear suspension control module (RSCM), which regulates the rear suspension's height and damping.
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Symptoms

  • • Sagging rear suspension
  • • uneven tire wear
  • • difficulty steering
  • • and a bumpy ride.
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Common Causes

  • • Faulty RSCM
  • • damaged or worn-out suspension components
  • • loose or corroded connections.
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How to Fix C1381 on 2021 Honda PASSPORT

1. Disconnect the battery to prevent any accidental deployments of the suspension. 2. Locate the RSCM and inspect it for any signs of damage or corrosion. 3. Check and clean all electrical connections to the RSCM. 4. Replace the RSCM if it's faulty. 5. Inspect and replace any damaged or worn-out suspension components.

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Need Maintenance Info for Your PASSPORT?

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Parts for 2021 Honda PASSPORT

Rear Suspension Control Module (RSCM) Shop ↗ Suspension components (e.g., shock absorbers, springs) 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 C1381

C1379 Sequential Code

C1379: ABS System Malfunction

Medium
C1380 Sequential Code

C1380: Brake System Malfunction

Medium
C1382 Sequential Code

C1382: Steering Column Position Sensor Circuit Malfunction

Medium
C1383 Sequential Code

C1383: 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