What does code P0506 mean?
The engine idle speed is lower than expected under current operating conditions.
OBD-II Code
P0506 — Idle Control System RPM Lower Than Expected
The engine idle speed is lower than expected under current operating conditions.
Common symptoms
- Engine vibration
- stalling when braking or stopping
Possible causes
- Vacuum leaks
- dirty IAC valve
- carbon buildup in throttle body
Initial recommendation
Clean throttle body and inspect vacuum lines for leaks.
Safety notice
This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine code P0506 with your vehicle's actual symptoms for more complete diagnostic guidance.
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