← View Generic B3748 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2021 Honda PASSPORT
B3748: B3748: Seat Position Sensor 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
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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 B3748 Mean on 2021 Honda PASSPORT?
The seat position sensor has failed to provide accurate data to the vehicle's computer, causing issues with seat adjustment and potentially affecting airbag deployment.
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Symptoms
- • Seat movement is restricted
- • seat position is not accurate
- • airbag warning light is illuminated
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Common Causes
- • Faulty seat position sensor
- • wiring issue
- • or electrical connector problem
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How to Fix B3748 on 2021 Honda PASSPORT
1. Disconnect battery to reset computer, 2. Check and clean electrical connectors, 3. Replace faulty seat position sensor, 4. Check and repair wiring as needed
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Need Maintenance Info for Your PASSPORT?
Get oil capacity, filter specs, and torque settings for your specific 2021 Honda PASSPORT.
View 2021 Honda PASSPORT SpecsParts for 2021 Honda PASSPORT
Essential Tool
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Related Diagnostic Codes
Other codes that may appear with B3748
B3746
Sequential Code
B3746: Door Locks Actuator Malfunction
Medium
B3747
Sequential Code
B3747: Power Window Regulator Malfunction
Medium
B3749
Sequential Code
B3749: Exterior Lighting Malfunction
Medium
B3750
Sequential Code
B3750: Immobilizer System Malfunction
High
💡 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