For 1990-2009 cars only
Clearing DTCs for Cadillac Seville 1999
Clearing History Codes
Disconnecting the battery or module connectors will not clear a history DTC. A history DTC can only be cleared by using one of the following methods:
| • | A scan tool. |
| • | The on-board diagnostics. |
| • | A module may clear a history DTC after 50 ignition cycles. |
Most of the diagnostic tables refer to the scan tool for diagnostic support. For details on using the on-board diagnostics to clear DTCs refer to Diagnostic Trouble Code (DTC) Clearing in HVAC Systems with A/C Automatic.
