← View Generic C0443 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2021 Honda PASSPORT
C0443: C0443: Rear Suspension Damper Solenoid Circuit Malfunction
on 2021 Honda PASSPORT
Fix Cost
$200 - $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 C0443 Mean on 2021 Honda PASSPORT?
The C0443 code indicates a malfunction in the rear suspension damper solenoid circuit, which can cause uneven tire wear, vibration, and reduced ride quality.
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Symptoms
- • Uneven tire wear
- • vibration
- • reduced ride quality
- • noise from rear suspension
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Common Causes
- • Faulty rear suspension damper solenoid
- • wiring issues
- • faulty electronic control unit
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How to Fix C0443 on 2021 Honda PASSPORT
1. Disconnect battery to reset system, 2. Check and clean wiring connections, 3. Replace faulty solenoid, 4. Update electronic control unit software 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.
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Essential Tool
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Related Diagnostic Codes
Other codes that may appear with C0443
C0441
Sequential Code
C0441: ABS System Malfunction
Medium
C0442
Sequential Code
C0442: Brake System Pressure Sensor Circuit Malfunction
Medium
C0444
Sequential Code
C0444: Steering Column Position Sensor Circuit Malfunction
Medium
C0445
Sequential Code
C0445: Electronic Stability Control (ESC) 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