DTC P0506 Or DTC P0507: Condition
WARNING: This page is about a different car, the 2002 Suzuki XL-7. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0506 is set when engine idle speed is 100 RPM or more lower than target idle speed for 20 seconds or more, continuously. MIL is illuminated when ECM detects malfunction during 2 consecutive drive cycles.
DTC P0507 is set when engine idle speed is 200 RPM or more higher than target idle speed for 20 seconds or more, continuously. MIL is illuminated when ECM detects malfunction during 2 consecutive drive cycles.