DTC P0506: Idle Speed Control System: Notes
WARNING: This page is about a different car, the 2003 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
If DTC P0122, P0123, P0222, P0223, P1122, P1124, P1126 or P2135 is also set, perform diagnosis for those DTCs first.
NOTE:
Before performing diagnostic procedure, follow testing procedure. See TESTING PROCEDURE
under SELF-DIAGNOSTIC SYSTEM.