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P1509 Diagnostic Trouble Code Discussion for October 2009

Idle Speed High - IAC System Not Responding


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Trouble Ticket Help Requests for DTC P1509
Help Request Posted
1998 Honda Civic EX 1.6L Poor Idle Quality, Surge VIN: 1HGEJ8255W
P1509: Idle Air Control System High RPM. I can't clear this light. When the key is in the on position the light will come back on. The circuit is not open and the idle is smooth when the iac is unpluged. I the replaced with a used with on fix. I have then sent to Honda and was told to replace with th...
October 15, 2009
1998 Honda Civic EX 1.6L Poor Idle Quality, Surge VIN: 1HGEJ8255W
P1509: Idle Air Control System High RPM. I can't clear this light. When the key is in the on position the light will come back on. The circuit is not open and the idle is smooth when the iac is unpluged. I the replaced with a used with on fix. I have then sent to Honda and was told to replace with th...
October 15, 2009