← View Generic C1437 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

C1437: C1437: Rear Suspension Control Module (RSCM) Fault

on 2021 Honda PASSPORT

Fix Cost
$200 - $500
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 C1437 Mean on 2021 Honda PASSPORT?

The C1437 code indicates a fault in the Rear Suspension Control Module (RSCM), which controls the rear suspension's height and damping. This fault can cause uneven tire wear, reduced ride quality, and decreased handling.
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Symptoms

  • • Uneven tire wear
  • • reduced ride quality
  • • decreased handling
  • • rattling or clunking noises from the rear suspension
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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 C1437 on 2021 Honda PASSPORT

1. Disconnect the battery to clear the code. 2. Inspect and clean the RSCM connectors. 3. Check and replace any damaged or worn-out suspension components. 4. Reconnect the battery and clear the code.

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Parts for 2021 Honda PASSPORT

Rear Suspension Control Module Shop ↗ Suspension components (e.g., bushings, links) Shop ↗

Essential Tool

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OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with C1437

C1435 Sequential Code

C1435: ABS System Malfunction

Medium
C1436 Sequential Code

C1436: Brake System Pressure Sensor Circuit Malfunction

Medium
C1438 Sequential Code

C1438: Steering Column Position Sensor Circuit Malfunction

Medium
C1439 Sequential Code

C1439: 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