P0506
Idle Control System RPM - Lower Than Expected
P0506 is an OBD-II diagnostic trouble code meaning: Idle Control System RPM - Lower Than Expected. Common causes: throttle valve contamination, throttle position sensor malfunction. Estimated repair cost: $56–167.
Symptoms
- Low idle speed
- Engine stalls at idle
- Unstable engine operation
Causes
- Throttle valve contamination
- Throttle Position Sensor Malfunction
- Vacuum leak
- Clogged idle channel
- Idle air control malfunction
How to Fix
- Cleaning the throttle body
- Checking the throttle position sensor
- Finding and Repairing Vacuum Leaks
- Checking the idle channel
- Diagnostics of the idle air regulator
Related codes
Error P0506 by Vehicle Brand
FAQ
What does the P0506 code mean?
P0506 is an OBD-II diagnostic trouble code that indicates: Idle Control System RPM - Lower Than Expected
What causes a P0506 error code?
The most common causes of P0506 include: Throttle valve contamination; Throttle Position Sensor Malfunction; Vacuum leak; Clogged idle channel.
How do I fix a P0506 diagnostic trouble code?
To fix P0506: Cleaning the throttle body. Checking the throttle position sensor. Finding and Repairing Vacuum Leaks. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0506?
Limited driving only, diagnose soon
How much does it cost to fix P0506?
The estimated repair cost for P0506 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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