Reading and Clearing Diagnostic Trouble Codes

Diagnostic Trouble Code (DTC) List/Type:

DTCs can be displayed by using one of the following methods:
^ A scan tool
^ The on-board diagnostics

Most of the diagnostic tables will refer to the scan tool for diagnostic support. For details on using the on-board diagnostics in order to display and/or clear DTCs, refer to Diagnostic Trouble Code (DTC) Displaying in HVAC System-Automatic.

Clearing DTCs
DTCs can 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 will refer to the scan tool for diagnostic support. For details on using the on-board diagnostics in order to display and/or clear DTCs, refer to Diagnostic Trouble Code (DTC) Clearing in HVAC System-Automatic.

Intermittents And Poor Connections
Refer to Testing for Intermittent and Poor Connections in Wiring Systems.