Severity: Low
Safe to drive. Schedule a diagnosis soon.
What P0506 means
Idle speed is lower than the target.
Symptoms
- Low or rough idle
- Stalling at stops
Common causes
Most likely first
- 1Dirty throttle body
- 2Restricted air intake
- 3Heavy engine load from accessories
How we diagnose it
- Clean throttle body and run relearn
Every vehicle sets codes under its own conditions. We check the factory diagnostic steps and service bulletins for your VIN, so the repair targets the actual cause.