With Manufacturer's Scan Tool
CHECK DTCa. Connect the hand-held tester (with CAN VIN) to the Controller Area Network Vehicle Interface Module (CAN VIM). Then connect the CAN VIN to the DLC3.
b. Turn the power switch ON (IG).
c. Read DTCs by following the prompts on the tester screen.
HINT: Refer to the hand-held tester operator's manual for further details.