Fujitsu M3097DG Oem Manual page 138

Scanner Interface
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DTC SELECTION: byte 3E
Byte 3E b7
If reserved value is specified, this scanner returns the following error information as follows:
-
-
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
DTC SELECTION BYTE
b6 b5 b4
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
Status: B'00001' (CHECK CONDITION)
Sense key: X'5' (ILLEGAL REQUEST)
b3 b2 b1 b0
Reserved