← View Generic B2998 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2021 Honda PASSPORT
B2998: B2998: Immobilizer System Malfunction
on 2021 Honda PASSPORT
Fix Cost
$100 - $500
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 B2998 Mean on 2021 Honda PASSPORT?
The immobilizer system has detected a malfunction, preventing the vehicle from starting. This code is often caused by a faulty immobilizer module, key fob, or wiring issue.
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Symptoms
- • Vehicle will not start
- • may display a 'security system malfunction' message on the dashboard
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Common Causes
- • Faulty immobilizer module
- • key fob
- • wiring issue
- • low battery voltage
- • or incorrect key fob programming
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How to Fix B2998 on 2021 Honda PASSPORT
1. Check key fob battery voltage and replace if necessary. 2. Check wiring connections and repair any damage. 3. Replace immobilizer module if faulty. 4. Re-program key fob if necessary.
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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 B2998
B2996
Sequential Code
B2996: Seat Position Sensor Circuit Malfunction
Medium
B2997
Sequential Code
B2997: Exterior Lighting Malfunction
Medium
B2999
Sequential Code
B2999: Audio System Malfunction
Medium
B3000
Sequential Code
B3000: Airbag 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