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.