← View Generic P0141 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2021 Honda PASSPORT
P0141: Oxygen Sensor Heater Circuit Malfunction Bank 1 Sensor 2
on 2021 Honda PASSPORT
Fix Cost
$50 - $250
Parts & Labor
Difficulty
2/5
30 mins - 1 hour
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 P0141 Mean on 2021 Honda PASSPORT?
The heater circuit for the downstream oxygen sensor on bank 1 is not working.
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Symptoms
- • Slow oxygen sensor response when cold
- • failed emissions test
- • check engine light.
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Common Causes
- • Blown oxygen sensor heater fuse
- • faulty sensor with bad heater
- • wiring problems.
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How to Fix P0141 on 2021 Honda PASSPORT
Check and replace heater fuse, replace oxygen sensor, repair heater circuit wiring.
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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 P0141
P0139
Sequential Code
Oxygen Sensor Circuit Slow Response Bank 1 Sensor 2
Medium
P0140
Sequential Code
Oxygen Sensor Circuit No Activity Bank 1 Sensor 2
Medium
P0142
Sequential Code
P0142: Fuel Pressure Regulator Circuit Malfunction
Medium
P0143
Sequential Code
P0143: Fuel Pressure Regulator Circuit 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