← View Generic P0510 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2021 Honda PASSPORT
P0510: Closed Throttle Position Switch Malfunction
on 2021 Honda PASSPORT
Fix Cost
$50 - $300
Parts & Labor
Difficulty
3/5
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 P0510 Mean on 2021 Honda PASSPORT?
The closed throttle position switch is not indicating proper throttle closure when the throttle is closed.
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Symptoms
- • Poor idle quality
- • stalling
- • hesitation
- • transmission shifting problems
- • cruise control issues.
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Common Causes
- • Faulty throttle position sensor
- • misadjusted throttle position sensor
- • damaged wiring
- • throttle body problems.
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How to Fix P0510 on 2021 Honda PASSPORT
Replace throttle position sensor, adjust TPS if possible, repair wiring, clean or replace throttle body.
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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 P0510
P0508
Sequential Code
P0508: Idle Air Control (IAC) Motor Circuit Malfunction
Medium
P0509
Sequential Code
P0509: Idle Air Control (IAC) Motor Circuit Malfunction
Medium
P0511
Sequential Code
P0511: Idle Air Control (IAC) Valve Circuit Malfunction
Medium
P0512
Sequential Code
P0512: Idle Air Control (IAC) Motor 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