CHECK DTC.

QUESTION
Is DTC displayed?
Yes	No
Check the appropriate DTC using the “List of Diagnostic Trouble Code (DTC)”. After the operation is complete, perform the following operations, and go to the next step. • Catalytic converter & DPF replacement • DPF maintenance (DPF change) • Check the DPF pressure difference sensor pipe. • Check the exhaust temperature sensor 1 and exhaust temperature sensor 2 circuit.	Check the malfunction indicator light circuit. After the operation is complete, go to the next step.