With Scan Tool

There are 23 HVAC Diagnostic Trouble Codes (DTCs) to assist with diagnosis. Refer to HVAC Diagnostic Trouble Code (DTC) Description for a listing.

The letter "H" after any of these DTCs indicates a history code. Example: DTC B1310H = History.

Displaying Diagnostic Trouble Codes (DTCs)

The diagnostic trouble codes (DTC) set by the HVAC programmer can be displayed by the Scan tool "Display DTC" selection.