← View Generic P0116 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2021 Honda PASSPORT
P0116: Engine Coolant Temperature Sensor Range/Performance Problem
on 2021 Honda PASSPORT
Fix Cost
$20 - $150
Parts & Labor
Difficulty
2/5
1-2 hours
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 P0116 Mean on 2021 Honda PASSPORT?
The engine coolant temperature sensor is not reading within expected parameters for the operating conditions.
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Symptoms
- • Inaccurate temperature gauge
- • poor fuel economy
- • rough idle
- • overheating
- • cooling fan issues.
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Common Causes
- • Faulty coolant temperature sensor
- • thermostat problems
- • low coolant level
- • air in cooling system.
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How to Fix P0116 on 2021 Honda PASSPORT
Replace coolant temperature sensor, check thermostat operation, top off coolant, bleed air from system.
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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 P0116
P0114
Sequential Code
P0114: Fuel Temperature Sensor Circuit Malfunction
Medium
P0115
Sequential Code
P0115: Fuel Temperature Sensor Circuit Malfunction
Medium
P0117
Sequential Code
Engine Coolant Temperature Sensor Circuit Low Input
High
P0118
Sequential Code
Engine Coolant Temperature Sensor Circuit High Input
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