.
ISOlDlS
15765-4
Contents
Foreword
....................................................................................................................................................................
iv
lntroduction
................................................................................................................................................................
iv
1
2
3
4
4
.I
4.2
5
5
.I
5.2
5.2.1
5.2.2
5.3
5.3.1
5.3.2
6
7
7.1
7.2
7.3
7.3.1
7.3.2
7.4
7.4.1
7.4.2
7.4.3
8
8.1
8.2
9
9.1
9.2
9.3
9.3.1
9.3.2
9.4
9.4.1
9.4.2
Scope
..............................................................................................................................................................
i
Normative references
....................................................................................................................................
1
Terms and definitions
...................................................................................................................................
i
Symbols and abbreviated terms
..................................................................................................................
2
Symbols
.......................................................................................................................................................... 2
Abbreviated Terms
........................................................................................................................................
2
External test equipment initialization sequence
........................................................................................
3
General
...........................................................................................................................................................
3
11
bit
CAN identifier verification procedure
...............................................................................................
5
11
bit
CAN identifier request message transmit procedure
.....................................................................
5
11
bit
CAN identifier response handling procedure
..................................................................................
7
29
bit CAN identifier Verification procedure
...............................................................................................
8
29
bit CAN identifier request message transmit procedure
.....................................................................
8
29
bit
CAN identifier response handling procedure
................................................................................
10
Session layer
...............................................................................................................................................
11
Network layer
...............................................................................................................................................
12
General
.........................................................................................................................................................
12
Addressing formats
....................................................................................................................................
12
Data
link
layer interface
..............................................................................................................................
12
CAN identifier requirements
...................................................................................................................... 12
Mapping of diagnostic addresses into legislated OBD CAN identifiers
................................................
12
Network layer Parameters
..........................................................................................................................
15
Network layer
timing
Parameter values
....................................................................................................
15
Definition of external test equipment network layer Parameter values
.................................................
16
Maximum number
of
legislated OBD ECUs
..............................................................................................
16
Data link layer
..............................................................................................................................................
16
General
.........................................................................................................................................................
16
Physical layer
..............................................................................................................................................
17
General
.........................................................................................................................................................
17
External test equipment baudrates
........................................................................................................... 17
External test equipment CAN
bit
timing Parameter values
.....................................................................
17
Nominal baudrate
250
kBitls
......................................................................................................................
18
Nominal baudrate
500
kBit/s
...................................................................................................................... 19
External test equipment electrical Parameters
........................................................................................
20
External test equipment CAN interface
.....................................................................................................
20
External test equipment cable
...................................................................................................................
22
Data length Code (DLC)
...............................................................................................................................
16
0
ISO
2003
.
All
rights
reserved
iii
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