Idle Control System Malfunction
| Code | P0505 |
| Description | Idle Control System Malfunction |
| Possible Causes | The idle air control system is not functioning properly. |
| System | Speed/Idle Control |
Idle Control System Malfunction. This diagnostic trouble code (DTC) is stored when the vehicle's onboard computer detects an issue with the speed/idle control.
P = Powertrain code
0 = Generic (SAE standard)