After selecting the system item, press [ ], the screen will appear as below:
Figure 4-7
4.2.1 Read DTC
Select [Read DTC] and press [ ] in Figure  4-7, it will  jump to the following 
screen:
Figure 4-8
Press [
] [ ] button to highlight one desired item and press [ ],  a  screen 
similar to Figure 4-9 will appear: