Clearing and Reading Diagnostic Trouble Codes

The IPC Clear codes option may be used to Clear stored IPC DTCs. When selected, the IPC Clear Codes option immediately erases all DTCs stored up to that point, and the DIC to displays "IPC Codes Clear." Once a Malfunction has been corrected, Clear DTCs so that any future service work is not needlessly confused.

Many IPC DTCs have complex test and failure conditions. Therefore, simply Clearing DTCs, exiting diagnostics and watching to see if the DTC Sets again, may not indicate whether a Malfunction has been corrected. To verify a repair after it is complete, you must look up the test conditions and duplicate those conditions.