← View Generic C1239 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

C1239: C1239: ABS System Malfunction

on 2021 Honda PASSPORT

Fix Cost

$200 - $800

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 C1239 Mean on 2021 Honda PASSPORT?

The ABS system has malfunctioned, likely due to a faulty wheel speed sensor or a problem with the ABS module.

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Symptoms

• ABS warning light on
• vehicle may vibrate or pull to one side
• reduced braking performance

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Common Causes

• Faulty wheel speed sensor
• ABS module failure
• wiring issue
• or low battery voltage

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How to Fix C1239 on 2021 Honda PASSPORT

1. Check and clear any trouble codes. 2. Inspect and clean wheel speed sensors. 3. Replace faulty wheel speed sensor(s). 4. Check and repair any wiring issues. 5. Update ABS module software if necessary.

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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

Wheel speed sensor Shop ↗ ABS module Shop ↗ Wiring harness 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 C1239

C1237 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