All UDS services

Link Control

0x87

The Link Control service allows the client to verify and switch the communication link baudrate between the client and the server.

✕Negative response codes
0x120x130x220x240x31

Request

SID 0x87 · 2 bytes
Len (bits)
Parameter description
Value (hex)
8
Link Control SID
0x87
1
suppressPosRspMsgIndicationBitBit 7 of the sub-function byte. When set to 1, the server will not send a positive response.
7
Verifies the server can transition to a standard baudrate from a predefined list.
0x01
8
linkControlModeIdentifier

Positive response

SID 0xC7
Len (bits)
Parameter description
Value (hex)
8
Link Control SID
0xC7
1
Echo of suppressPosRspMsgIndicationBit
7
Verifies the server can transition to a standard baudrate from a predefined list.
0x01
PREVIOUSControl DTC Setting0x85