P0505 Moderate Powertrain

Idle Control System Malfunction

Common Causes

Failed idle air control valve (older vehicles)
Dirty throttle body on drive-by-wire
Vacuum leak affecting idle
Failed electronic throttle body

Common Symptoms

Rough Idle

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Quick Info

Code P0505
System Powertrain
Severity Moderate

Disclaimer

This information is for diagnostic guidance only. Always verify repairs with a qualified technician before performing safety-critical work.

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