DTC P0506: Idle Control System Rpm Lower Than Expected (2004 3.5RL): Notes
WARNING: This page is about a different car, the 2004 Acura 3.5RL, 2003 Acura 3.5RL, 2002 Acura 3.5RL, and 2001 Acura 3.5RL. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
If DTC P0511 is set at same time as DTC P0506, troubleshoot DTC P0511 first, then troubleshoot DTC 0506.