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obd2

0.1.2 • Public • Published

node-obd2

Vehicle communication and data parsing with OBD-II connector.

INSTALLATION

$ npm install obd2 --save

USAGE

See sample files in "example" direction. Need for example project:

$ npm install express
$ npm install socket.io

WARNING

Beta package, does not suggested for stable use! Stable version 1.x soon.

TESTS

  • Integrated "fake serial"
  • Usb connection ( ELM327 v1.4b )
  • Ford focus 2008 ( CAN 11 bit 500kb )
  • Bluetooth connection ( ELM327 v1.? )
  • Included example

DOCUMENTATION

Source documentation find here.

ROADMAP

  • DTC read
  • DTC clear
  • FREEZE mode read

MODE and PID Support

MODE PID Byte Description Min Max Unit Slug name
01 00 4 PIDs supported 00-20 BIT pidsupp0
01 01 4 Monitor status since DTCs cleared BIT dtc_cnt
01 02 2 DTC that caused required freeze frame data storage BIT dtcfrzf
01 03 2 Fuel system 1 and 2 status BIT fuelsys
01 04 1 Calculated LOAD Value 0 100 % load_pct
01 05 1 Engine Coolant Temperature -40 215 °C temp
01 06 1 Short Term Fuel Trim - Bank 1,3 -100 99.22 % shrtft13
01 07 1 Long Term Fuel Trim - Bank 1,3 -100 99.22 % longft13
01 08 1 Short Term Fuel Trim - Bank 2,4 -100 99.22 % shrtft24
01 09 1 Long Term Fuel Trim - Bank 2,4 -100 99.22 % longft24
01 0A 1 Fuel Rail Pressure (gauge) 0 765 kPa frp
01 0B 1 Intake Manifold Absolute Pressure 0 255 kPa map
01 0C 2 Engine RPM 0 16383.75 r/m rpm
01 0D 1 Vehicle Speed Sensor 0 255 km/h vss
01 0E 1 Ignition Timing Advance for #1 Cylinder -64 63.5 ° sparkadv
01 0F 1 Intake Air Temperature -40 215 °C iat
01 10 2 Air Flow Rate from Mass Air Flow Sensor 0 655.35 g/s maf
01 11 1 Absolute Throttle Position 0 100 % throttlepos
01 12 1 Commanded Secondary Air Status BIT air_stat
01 13
01 14
01 15
01 16
01 17
01 18
01 19
01 1A
01 1B
01 1C 1 OBD requirements to which vehicle is designed BIT obdsup
01 1D
01 1E
01 1F 2 Time Since Engine Start 0 65535 sec runtm
01 20 4 PIDs supported 21-40 BIT pidsupp2
01 21 2 Distance Travelled While MIL is Activated 0 65535 km mil_dist
01 22 2 Fuel Rail Pressure relative to manifold vacuum 0 5177.265 kPa frpm
01 23 2 Fuel Rail Pressure (diesel) 0 655350 kPa frpd
01 24
01 25
01 26
01 27
01 28
01 29
01 2A
01 2B
01 2C 1 Commanded EGR 0 100 % edr_pct
01 2D 1 EGR Error -100 99.2 % egr_err
01 2E 1 Commanded Evaporative Purge 0 100 % eavp_pct
01 2F 1 Fuel Level Input 0 100 % fuellevel
01 30 1 Number of warm-ups since diagnostic trouble codes cleared 0 255 pcs warm_ups
01 31 2 Distance since diagnostic trouble codes cleared 0 65535 km clr_dist
01 32 2 Evap System Vapour Pressure -8192 8192 Pa evap_vp
01 33 1 Barometric Pressure 0 255 kPa baro
01 34
01 35
01 36
01 37
01 38
01 39
01 3A
01 3B
01 3C 2 Catalyst Temperature Bank 1 / Sensor 1 -40 6513.5 °C catemp11
01 3D 2 Catalyst Temperature Bank 2 / Sensor 1 -41 6513.6 °C catemp21
01 3E 2 Catalyst Temperature Bank 1 / Sensor 2 -42 6513.7 °C catemp12
01 3F 2 Catalyst Temperature Bank 2 / Sensor 2 -43 6513.8 °C catemp22
01 40 4 PIDs supported 41-60 BIT pidsupp4
01 41 4 Monitor status this driving cycle BIT monitorstatus
01 42 2 Control module voltage 0 65535 V vpwr
01 43 2 Absolute Load Value 0 25700 % load_abs
01 44 2 Fuel/air Commanded Equivalence Ratio 0 2 (ratio) lambda
01 45 1 Relative Throttle Position 0 100 % throttlerel
01 46 1 Ambient air temperature -40 215 °C ambient
01 47 1 Absolute Throttle Position B 0 100 % throttleposb
01 48 1 Absolute Throttle Position C 0 100 % throttleposc
01 49 1 Accelerator Pedal Position D 0 100 % accpedald
01 4A 1 Accelerator Pedal Position E 0 100 % accpedale
01 4B 1 Accelerator Pedal Position F 0 100 % accpedalf
01 4C 1 Commanded Throttle Actuator Control 0 100 % tac_pct
01 4D 2 Time run by the engine while MIL activated 0 65525 min mil_time
01 4E 2 Time since diagnostic trouble codes cleared 0 65525 min clr_time
01 4F
01 50
01 51 1 Fuel Type BIT fuel_type
01 52 1 Ethanol fuel % 0 100 % alch_pct
01 53 2 Absolute Evap system Vapor Pressure 0 327.675 kPa evap_press_abs
01 54 2 Evap system vapor pressure -32767 32768 Pa evap_press
01 55
01 56
01 57
01 58
01 59
01 5A 1 Relative accelerator pedal position 0 100 % accpedal_pos
01 5B 1 Hybrid battery pack remaining life 0 100 % hybridbatt
01 5C 1 Engine oil temperature -40 210 °C oiltemp
01 5D 2 Fuel injection timing -210.00 301.992 ° fuelinjection
01 5E 2 Engine fuel rate 0 3212.75 L/h fuelrate
01 5F
01 60 4 PIDs supported 61-80 BIT pidsupp6
01 61 1 Driver's demand engine percent torque -125 125 % demand_pct
01 62 1 Actual engine percent torque -125 125 % torque_pct
01 63 2 Engine reference torque 0 65535 Nm torque
01 64
01 65
01 66
01 67
01 68
01 69
01 6A
01 6B
01 6C
01 6D
01 6E
01 6F
01 70
01 71
01 72
01 73
01 74
01 75
01 76
01 77
01 78
01 79
01 7A
01 7B
01 7C
01 7D
01 7E
01 7F
01 80 4 PIDs supported 81-A0 BIT pidsupp8
01 81
01 82
01 83
01 84
01 85
01 86
01 87
01 A0 4 PIDs supported A1-C0 BIT pidsuppa
01 C0 4 PIDs supported C1-E0 BIT pidsuppc
01 C3
01 C4
03 6 Requested DTC BIT requestdtc
04 Clear Trouble Codes (Clear engine light) cleardtc

Install

npm i obd2

DownloadsWeekly Downloads

8

Version

0.1.2

License

MIT

Last publish

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