← View Generic C0121 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2021 Honda PASSPORT
C0121: C0121: Left Front Suspension Strut Friction Bushing Fault
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 C0121 Mean on 2021 Honda PASSPORT?
The C0121 code indicates a fault in the left front suspension strut friction bushing, which can cause uneven tire wear, vibration, and noise when driving.
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Symptoms
- • Uneven tire wear
- • vibration
- • noise when driving
- • loose or rattling suspension components
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Common Causes
- • Worn or damaged left front suspension strut friction bushing
- • loose or worn suspension mounts
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How to Fix C0121 on 2021 Honda PASSPORT
Replace the left front suspension strut friction bushing, inspect and replace any worn or damaged suspension mounts
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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 C0121
C0119
Sequential Code
C0119: ABS System Malfunction
Medium
C0120
Sequential Code
C0120: Brake System Pressure Sensor Circuit Malfunction
Medium
C0122
Sequential Code
C0122: Steering Column Position Sensor Circuit Malfunction
Medium
C0123
Sequential Code
C0123: Electronic Stability Control (ESC) 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