← View Generic B1388 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2021 Honda PASSPORT
B1388: B1388: Seat Switch Circuit Malfunction
on 2021 Honda PASSPORT
Fix Cost
$50 - $200
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
✅ Yes
Save money
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 B1388 Mean on 2021 Honda PASSPORT?
The seat switch circuit has malfunctioned, preventing the seat from functioning properly. This code is typically set when the seat switch circuit is open or shorted.
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Symptoms
- • Seat will not move
- • or moves erratically
- • or is stuck in a position
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Common Causes
- • Faulty seat switch
- • wiring issue
- • or electrical connector problem
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How to Fix B1388 on 2021 Honda PASSPORT
1. Disconnect the battery to reset the system. 2. Check and clean the seat switch and electrical connector. 3. Replace the seat switch if faulty. 4. Inspect and repair any wiring issues.
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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 B1388
B1386
Sequential Code
B1386: Door Locks Actuator Circuit Malfunction
Medium
B1387
Sequential Code
B1387: Power Window Regulator Malfunction
Medium
B1389
Sequential Code
B1389: Body System Code - Lighting Malfunction
Medium
B1390
Sequential Code
B1390: Body Control Module (BCM) Security System 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