← Back to Search Severity: High

B0664

B0664: Airbag System Deployment Sensor Circuit Malfunction

Fix Cost
$200 - $500
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
❌ No
Pro recommended
Category
Body
System

📖 What Does B0664 Mean?

The airbag system deployment sensor circuit has malfunctioned, preventing the airbag from deploying in the event of a crash.
⚠️

Symptoms

  • • Airbag warning light illuminated
  • • airbag system disabled
  • • crash sensor malfunction
🔍

Common Causes

  • • Faulty airbag deployment sensor
  • • wiring issue
  • • sensor connector corrosion
  • • ECU software glitch
Fix Guide
🛠️

Possible Solutions

1. Disconnect battery, clear code, and retest. 2. Inspect and clean sensor connector. 3. Replace faulty sensor. 4. Check wiring for damage or corrosion. 5. Update ECU software if necessary.

🚗

Fixing this on your car?

Get a vehicle-specific repair guide with exact parts, oil specs, and torque settings for your make and model.

Find My Car's Guide

🚙 Get Vehicle-Specific Fix Guide

Select your vehicle to see a customized repair guide with exact parts and specifications:

2021 Honda Passport 2014 Nissan Sentra 2017 Toyota Camry 2019 Ford F-150 2020 Chevrolet Silverado 2018 BMW X5
Don't see your vehicle? Browse all makes & models →

❓ Common Questions About B0664

Q

Can I drive with code B0664?

A

No, it is not recommended. Seeing code B0664 indicates a serious issue that could damage your engine or transmission if ignored. You should stop driving and have it inspected immediately.

Q

How much does it cost to fix B0664?

A

The estimated repair cost for code B0664 is between $200 and $500. This includes parts and labor for most makes and models.

Q

Is this code easy to fix myself?

A

This repair is considered moderate. It may require specialized tools or significant disassembly. Professional help is recommended if you aren't an experienced DIYer.

Required Parts

Airbag deployment sensor Shop ↗ Sensor connector Shop ↗ Wiring harness Shop ↗

Recommended Tools

Multimeter Search ↗ Wire tester Search ↗ Torx screwdriver Search ↗
👨‍🔧

Need a Pro?

Complex codes like B0664 can be tricky. Don't risk it if you're unsure.

📋

Recommended Tool

Essential for DIY

Professional OBD2 Scanner

Read & clear codes, view live data, and reset service lights yourself.

View Best Sellers ↗
🔗

Related Diagnostic Codes

Other codes that may appear with B0664

B0662 Sequential Code

B0662: Immobilizer System Malfunction

Medium
B0663 Sequential Code

B0663: Audio System Fault

Medium
B0665 Sequential Code

B0665: Climate Control Fan Motor Malfunction

Medium
B0666 Sequential Code

B0666: Door Locks Actuator Circuit 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