ELM327
AT Command Summary (continued)
OBD Commands
AL
AR
AT0, 1, 2
BD
BI
DP
DPN
H0, H1
MA
MR hh
MT hh
NL
PC
R0, R1
RA hh
S0, S1
SH xyz
SH xxyyzz
SP h
SP Ah
SR hh
SS
ST hh
TA hh
TP h
TP Ah
Allow Long (>7 byte) messages
Automatically Receive
Adaptive Timing off, auto1*, auto2
perform a Buffer Dump
Bypass the Initialization sequence
Describe the current Protocol
Describe the Protocol by Number
Headers off*, or on
Monitor All
Monitor for Receiver = hh
Monitor for Transmitter = hh
Normal Length messages*
Protocol Close
Responses off, or on*
set the Receive Address to hh
printing of Spaces off, or on*
Set Header to xyz
Set Header to xxyyzz
Set Protocol to h and save it
Set Protocol to Auto, h and save it
Set the Receive address to hh
use Standard Search order (J1978)
Set Timeout to hh x 4 msec
set Tester Address to hh
Try Protocol h
Try Protocol h with Auto search
J1850 Specific Commands
(protocols 1 and 2)
IFR0, 1, 2
IFR H, S
IFRs off, auto*, or on
IFR value from Header* or Source
CAN Specific Commands
(protocols 6 to C)
CEA
CEA hh
CAF0, CAF1
CF hhh
CFC0, CFC1
CM hhh
CP hh
CRA
turn off CAN Extended Addressing
use CAN Extended Address hh
Automatic Formatting off, or on*
set the ID Filter to hhh
Flow Controls off, or on*
set the ID Mask to hhh
set CAN Priority to hh (29 bit)
reset the Receive Address filters
CF hhhhhhhh
set the ID Filter to hhhhhhhh
CM hhhhhhhh
set the ID Mask to hhhhhhhh
CRA hhh
set CAN Receive Address to hhh
CRA hhhhhhhh
set the Rx Address to hhhhhhhh
CS
show the CAN Status counts
CSM0, CSM1
Silent Monitoring off, or on*
D0, D1
display of the DLC off*, or on
FC SM h
Flow Control, Set the Mode to h
FC SH hhh
FC, Set the Header to hhh
FC SH hhhhhhhh
Set the Header to hhhhhhhh
FC SD [1 - 5 bytes]
FC, Set Data to [...]
PB xx yy
Protocol B options and baud rate
RTR
send an RTR message
V0, V1
use of Variable DLC off*, or on
J1939 CAN Specific Commands
(protocols A to C)
DM1
JE
JHF0, JHF1
JS
JTM1
JTM5
MP hhhh
MP hhhh n
MP hhhhhh
MP hhhhhh n
monitor for DM1 messages
use J1939 Elm data format*
Header Formatting off, or on*
use J1939 SAE data format
set Timer Multiplier to 1*
set Timer Multiplier to 5
Monitor for PGN 0hhhh
“ “ and get n messages
Monitor for PGN hhhhhh
“ “ and get n messages
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ISO Specific Commands
(protocols 3 to 5)
FI
perform a Fast Initiation
IB 10
set the ISO Baud rate to 10400*
IB 48
set the ISO Baud rate to 4800
IB 96
set the ISO Baud rate to 9600
IIA hh
set ISO (slow) Init Address to hh
KW
display the Key Words
KW0, KW1
Key Word checking off, or on*
SI
perform a Slow (5 baud) Initiation
SW hh
Set Wakeup interval to hh x 20 msec
WM [1 - 6 bytes]
set the Wakeup Message
ELM327DSH
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