Clearing Trouble Codes - HVAC System - Automatic

DISPLAYING CODES

A DTC is read in only one of following two ways:
^ The IPC Reading DTC feature.
^ Using a scan tool.

Most information in the diagnostic tables will refer to the scan tool for diagnostic support. For details on using the on-board diagnostic feature to access/clear DTCs, refer to On-Board Diagnostics.

CLEARING CODES

Disconnecting the battery and/or the HVAC connectors will not clear a DTC. A DTC can only be cleared in one of the following three ways:
^ Using the IPC clearing feature.
^ Using a scan tool.
^ The HVAC Control Assembly will automatically clear a DTC if the malfunction has not occurred within 50 ignition cycles.

Most information in diagnostic tables will refer to the scan tool for diagnostic support. For details on using the on-board diagnostic feature to access/clear DTCs, refer to On-Board Diagnostics.

Clear any history DTC after a system malfunction is corrected in order to prevent future misdiagnosis.