Scanner Interface

DTC SELECTION: byte 3E

DTC SELECTION BYTE

Byte 3E

b7

b6

b5

b4

b3

b2

b1

b0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reserved

Reserved

DTC SELECTION

00: Default; Simplified DTC, if IPC-2D or IPC-3D optioned.

01: Dynamic threshold

10:Simplified DTC, if IPC-2D or IPC-3D optioned.

11:Reserved

If reserved value is specified, this scanner returns the following error information as follows:

- Status:

B’00001’ (CHECK CONDITION)

- Sense key: X’5’ (ILLEGAL REQUEST)

Note:

If simplified dynamic threshold is selected. (Byte 3E=X'00' or X'80'), variance rate (byte 2E) is valid.

If dynamic threshold is selected (byte 3E=X'40'), DTC mode (byte 2F and 30) are valid.

Appendix A-68