← View Generic B1099 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

B1099: B1099: Window Regulator Malfunction

on 2021 Honda PASSPORT

Fix Cost
$150 - $300
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 B1099 Mean on 2021 Honda PASSPORT?

The Body Control Module (BCM) has detected a problem with the window regulator, which may be causing the window to malfunction or not function properly.
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Symptoms

  • • Window stuck or slow to move
  • • unusual noise when rolling up or down
  • • window not moving at all
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Common Causes

  • • Faulty window regulator motor
  • • faulty window regulator gears
  • • damaged or worn-out window regulator tracks
🛠️

How to Fix B1099 on 2021 Honda PASSPORT

1. Disconnect the battery to prevent any accidental window movement. 2. Remove the door panel to access the window regulator. 3. Identify the faulty component and replace it with a new one. 4. Reassemble the door panel and test the window to ensure proper function.

🔧

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

Window regulator motor Shop ↗ Window regulator gears Shop ↗ Window regulator tracks Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B1099

B1097 Sequential Code

B1097: Climate Control Actuator Malfunction

Medium
B1098 Sequential Code

B1098: Door Locks Actuator Malfunction

Medium
B1100 Sequential Code

B1100: Seat Switch Circuit Malfunction

Medium
B1101 Sequential Code

B1101: Body System Code - Lighting 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