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Vehicle-Specific Guide
This guide is customized for your 2021 Honda PASSPORT
C3641: C3641: Brake System Pressure Sensor Circuit 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 C3641 Mean on 2021 Honda PASSPORT?
The brake system pressure sensor circuit has malfunctioned, causing the brake system to malfunction.
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Symptoms
- • Brake pedal feels spongy
- • brake light on dashboard
- • reduced braking performance
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Common Causes
- • Faulty brake pressure sensor
- • wiring issue
- • sensor connector corrosion
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How to Fix C3641 on 2021 Honda PASSPORT
Replace brake pressure sensor, inspect and clean sensor connector, check wiring for damage
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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 C3641
C3639
Sequential Code
C3639: Wheel Speed Sensor Malfunction
Medium
C3640
Sequential Code
C3640: ABS System Malfunction
Medium
C3642
Sequential Code
C3642: Rear Suspension Strut Friction Bushing Fault
Medium
C3643
Sequential Code
C3643: Electric Power Steering (EPS) System Fault
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