← View Generic B0738 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

B0738: B0738: Door Locks Malfunction

on 2021 Honda PASSPORT

Fix Cost

$100 - $300

Parts & Labor

Difficulty

3/5

1-2 hours

DIY Possible?

✅ Yes

Save money

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 B0738 Mean on 2021 Honda PASSPORT?

This code indicates a malfunction in the door lock system, which may cause doors to lock or unlock unexpectedly, or fail to function properly.

⚠️

Symptoms

• Doors locking or unlocking unexpectedly
• inability to lock or unlock doors
• door lock actuator noise or vibration

🔍

Common Causes

• Faulty door lock actuator
• wiring issue
• door lock module failure
• faulty door lock switch

🛠️

How to Fix B0738 on 2021 Honda PASSPORT

1. Check door lock actuator for proper function and replace if faulty. 2. Inspect wiring for damage or corrosion and repair as needed. 3. Replace door lock module if faulty. 4. Check door lock switch for proper function and replace if faulty.

🔧

Need Maintenance Info for Your PASSPORT?

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

View 2021 Honda PASSPORT Specs

Parts for 2021 Honda PASSPORT

Door lock actuator Shop ↗ Door lock module Shop ↗ Door lock switch Shop ↗

Essential Tool

Must Have

OBD2 Scanner

Read & clear codes on your 2021 Honda PASSPORT

Shop Scanners ↗

🔗

Related Diagnostic Codes

Other codes that may appear with B0738

B0736 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