With Diagnostic Scan Tool

The DTCs in the heater and A/C programmer can be erased by the Scan tool Clear DTCs selection method.

Be sure to verify proper system operation and absence of DTCs when the clearing procedure is completed.

Scan tool Method

Select diagnostic trouble codes. After DTCs have been viewed completely, scan tool will ask, CLEAR DTCs?; answer YES. scan tool will then read, HISTORY DATA WILL BE LOST. CLEAR DTCs? Answer YES. and the DTCs will be cleared.