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SUPPORTED_COMMANDS.md

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Supported Commands

Full list of supported commands.

AT Commands (ELM327)

Command Name Description
Z RESET_ADAPTER Reset OBD Adapter
WS WARM_START OBD Warm Start
SI SLOW_INITIATION OBD Slow Initiation
LP LOW_POWER_MODE OBD Low Power Mode
BD BUFFER_DUMP OBD Buffer Dump
BI BYPASS_INITIALIZATION OBD Bypass Initialization Sequence
PC PROTOCOL_CLOSE OBD Protocol Close
DP DESCRIBE_PROTOCOL Describe Protocol
DPN DESCRIBE_PROTOCOL_NUMBER Describe Protocol Number
IGN IGNITION_MONITOR Ignition Monitor
RN ADAPTER_VOLTAGE OBD Adapter Voltage
SP {X} SELECT_PROTOCOL_{X} Select Protocol where {X} is an ObdProtocols constant
AT {X} SET_ADAPTIVE_TIMING_{X} Set Adaptive Timing Control where {X} is an AdaptiveTimingMode constant
E{X} SET_ECHO_{X} Set Echo where {X} is a Switcher constant
H{X} SET_HEADERS_{X} Set Headers where {X} is a Switcher constant
L{X} SET_LINE_FEED_{X} Set Line Feed where {X} is a Switcher constant
S{X} SET_SPACES_{X} Set Spaces where {X} is a Switcher constant
ST {X} SET_TIMEOUT Set Timeout where {X} is an Int value

Mode 01

Command Name Description
00, 20, 40, 60, 80 AVAILABLE_COMMANDS_{RANGE} Available PIDs for each range, where {RANGE} is an AvailablePIDsRanges constant
01 DTC_NUMBER Diagnostic Trouble Codes Number
01 MIL_ON MIL ON/OFF
01 MONITOR_STATUS_SINCE_CODES_CLEARED Monitor Status Since Codes Cleared
04 ENGINE_LOAD Engine Load
05 ENGINE_COOLANT_TEMPERATURE Engine Coolant Temperature
06 SHORT_TERM_BANK_1 Short Term Fuel Trim Bank 1
07 SHORT_TERM_BANK_2 Short Term Fuel Trim Bank 2
08 LONG_TERM_BANK_1 Long Term Fuel Trim Bank 1
09 LONG_TERM_BANK_2 Long Term Fuel Trim Bank 2
0A FUEL_PRESSURE Fuel Pressure
0B INTAKE_MANIFOLD_PRESSURE Intake Manifold Pressure
0C ENGINE_RPM Engine RPM
0D SPEED Vehicle Speed
0E TIMING_ADVANCE Timing Advance
0F AIR_INTAKE_TEMPERATURE Air Intake Temperature
10 MAF Mass Air Flow
11 THROTTLE_POSITION Throttle Position
1F ENGINE_RUNTIME Engine Runtime
21 DISTANCE_TRAVELED_MIL_ON Distance traveled with MIL on
23 FUEL_RAIL_PRESSURE Fuel Rail Pressure
2F FUEL_LEVEL Fuel Level
31 DISTANCE_TRAVELED_AFTER_CODES_CLEARED Distance traveled since codes cleared
33 BAROMETRIC_PRESSURE Barometric Pressure
34 OXYGEN_SENSOR_1 Oxygen Sensor 1
35 OXYGEN_SENSOR_2 Oxygen Sensor 2
36 OXYGEN_SENSOR_3 Oxygen Sensor 3
37 OXYGEN_SENSOR_4 Oxygen Sensor 4
38 OXYGEN_SENSOR_5 Oxygen Sensor 5
39 OXYGEN_SENSOR_6 Oxygen Sensor 6
3A OXYGEN_SENSOR_7 Oxygen Sensor 7
3B OXYGEN_SENSOR_8 Oxygen Sensor 8
41 MONITOR_STATUS_CURRENT_DRIVE_CYCLE Monitor Status Current Drive Cycle
42 CONTROL_MODULE_VOLTAGE Control Module Power Supply
43 ENGINE_ABSOLUTE_LOAD Engine Absolute Load
44 COMMANDED_EQUIVALENCE_RATIO Fuel-Air Commanded Equivalence Ratio
45 RELATIVE_THROTTLE_POSITION Relative Throttle Position
46 AMBIENT_AIR_TEMPERATURE Ambient Air Temperature
4D TIME_TRAVELED_MIL_ON Time run with MIL on
4E TIME_SINCE_CODES_CLEARED Time since codes cleared
51 FUEL_TYPE Fuel Type
52 ETHANOL_LEVEL Ethanol Level
5C ENGINE_OIL_TEMPERATURE Engine Oil Temperature
5E FUEL_CONSUMPTION_RATE Fuel Consumption Rate

Mode 03

Name Description
TROUBLE_CODES Trouble Codes

Mode 04

Name Description
RESET_TROUBLE_CODES Reset Trouble Codes

Mode 07

Name Description
PENDING_TROUBLE_CODES Pending Trouble Codes

Mode 09

Command Name Description
02 VIN Vehicle Identification Number (VIN)

Mode 0A

Name Description
PERMANENT_TROUBLE_CODES Permanent Trouble Codes