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DTC Troubleshooting: Notes

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2005 Honda S2000, 2004 Honda S2000, 2003 Honda S2000, 2002 Honda S2000, and 2001 Honda S2000. However, it is still accessible from the selected car via links, so may be relevant.
DTC INDEX

DTC Description
DTC P0505  Idle Control System Malfunction (2000-2003 models)
DTC P0506  Idle Control System RPM Lower Than Expected (2004-2005 models)
DTC P0507  Idle Control System RPM Higher Than Expected (2004-2005 models)
DTC P0511  IAC Valve Circuit Malfunction (2004-2005 models); DTC P1519: IAC Valve Circuit Malfunction (2000-2003 models)