Scan Tool Parameter - History Code

This selection will display only DTCs that are stored to the PCMs history memory. It will not display type B DTCs that have not requested the MIL. It will display all type A DTCs (and type B DTCs which have requested the MIL) that have failed within the last 40 warm-up cycles. In addition it will display all type C DTCs that have failed within the last 40 warm-up cycles. Fuel trim and misfire DTCs are stored for 80 warm-up cycles.