examples/tests/signal.json

   1 {   "name": "AGL Virtual Car",
   2         "extra_sources": [],
   3         "initializers": [],
   4         "loopers": [],
   5         "buses": {},
   6         "commands": [],
   7         "messages": {
   8                 "0x620": {
   9                         "bus": "hs",
  10                         "is_fd" : false,
  11                         "is_extended": false,
  12                         "is_j1939" : false,
  13                         "length" : 8,
  14                         "signals": {
  15                                 "doors.driver.open": {
  16                                         "generic_name": "doors.front_left.open",
  17                                         "bit_position": 43,
  18                                         "bit_size": 1,
  19                                         "factor": 1.0,
  20                                         "offset": 0,
  21                                         "writable": true,
  22                                         "decoder": "decoder_t::decode_boolean"},
  23                                 "doors.passenger.open": {
  24                                         "generic_name": "doors.front_right.open",
  25                                         "bit_position": 44,
  26                                         "bit_size": 1,
  27                                         "factor": 1.0,
  28                                         "offset": 0,
  29                                         "writable": true,
  30                                         "decoder": "decoder_t::decode_boolean"},
  31                                 "doors.rearleft.open": {
  32                                         "generic_name": "doors.rear_left.open",
  33                                         "bit_position": 46,
  34                                         "bit_size": 1,
  35                                         "factor": 1.0,
  36                                         "offset": 0,
  37                                         "writable": true,
  38                                         "decoder": "decoder_t::decode_boolean"},
  39                                 "doors.rearright.open": {
  40                                         "generic_name": "doors.rear_right.open",
  41                                         "bit_position": 45,
  42                                         "bit_size": 4,
  43                                         "factor": 1.0,
  44                                         "offset": 0,
  45                                         "writable": true,
  46                                         "decoder": "decoder_t::decode_boolean"},
  47                                 "doors.coffer.open": {
  48                                         "generic_name": "doors.boot.open",
  49                                         "bit_position": 47,
  50                                         "bit_size": 1,
  51                                         "factor": 1.0,
  52                                         "offset": 0,
  53                                         "writable": true,
  54                                         "decoder": "decoder_t::decode_boolean"}
  55                 }
  56         },
  57                 "0x799": {
  58                         "bus": "hs",
  59                         "is_fd" : false,
  60                         "is_extended": false,
  61                         "is_j1939" : false,
  62                         "length" : 8,
  63                         "signals": {
  64                                 "windows.driver.open": {
  65                                         "generic_name": "windows.front_left.open",
  66                                         "bit_position": 43,
  67                                         "bit_size": 1,
  68                                         "factor": 1.0,
  69                                         "offset": 0,
  70                                         "writable": true,
  71                                         "decoder": "decoder_t::decode_boolean"},
  72                                 "windows.passenger.open": {
  73                                         "generic_name": "windows.front_right.open",
  74                                         "bit_position": 44,
  75                                         "bit_size": 1,
  76                                         "factor": 1.0,
  77                                         "offset": 0,
  78                                         "writable": true,
  79                                         "decoder": "decoder_t::decode_boolean"},
  80                                 "windows.rearleft.open": {
  81                                         "generic_name": "windows.rear_left.open",
  82                                         "bit_position": 46,
  83                                         "bit_size": 1,
  84                                         "factor": 1.0,
  85                                         "offset": 0,
  86                                         "writable": true,
  87                                         "decoder": "decoder_t::decode_boolean"},
  88                                 "windows.rearright.open": {
  89                                         "generic_name": "windows.rear_right.open",
  90                                         "bit_position": 45,
  91                                         "bit_size": 4,
  92                                         "factor": 1.0,
  93                                         "offset": 0,
  94                                         "writable": true,
  95                                         "decoder": "decoder_t::decode_boolean"}
  96                 }
  97         },
  98         "0x3D9": {
  99         "bus": "hs",
 100         "is_fd" : true,
 101         "is_extended": false,
 102         "is_j1939" : false,
 103         "length" : 8,
 104         "signals": {
 105                 "PT_FuelLevelPct": {
 106                         "generic_name": "fuel.level",
 107                         "bit_position": 8,
 108                         "bit_size": 8,
 109                         "factor": 0.392157,
 110                         "offset": 0,
 111                         "writable": true
 112                 },
 113                 "PT_EngineSpeed": {
 114                         "generic_name": "engine.speed",
 115                         "bit_position": 16,
 116                         "bit_size": 16,
 117                         "factor": 0.25,
 118                         "offset": 0,
 119                         "writable": true
 120                 },
 121                 "PT_FuelLevelLow": {
 122                         "generic_name": "fuel.level.low",
 123                         "bit_position": 55,
 124                         "bit_size": 1,
 125                         "factor": 1,
 126                         "offset": 0,
 127                         "writable": true,
 128                         "decoder": "decoder_t::decode_boolean"
 129                 }
 130         }
 131         },
 132         "0x4D1": {
 133         "bus": "hs",
 134         "is_fd" : false,
 135         "is_extended": false,
 136         "is_j1939" : false,
 137         "length" : 8,
 138         "signals": {
 139                 "PT_EngineOilTempHigh": {
 140                         "generic_name": "engine.oil.temp.high",
 141                         "bit_position": 7,
 142                         "bit_size": 1,
 143                         "factor": 1,
 144                         "offset": 0,
 145                         "writable": true,
 146                         "decoder": "decoder_t::decode_boolean"
 147                 },
 148                 "PT_EngineOilTemp": {
 149                         "generic_name": "engine.oil.temp",
 150                         "bit_position": 16,
 151                         "bit_size": 8,
 152                         "factor": 1,
 153                         "offset": 0,
 154                         "writable": true
 155                 }
 156         }
 157         },
 158         "0x3E9": {
 159         "bus": "hs",
 160         "is_fd" : false,
 161         "is_extended": false,
 162         "is_j1939" : false,
 163         "length" : 8,
 164         "signals": {
 165                 "PT_VehicleAvgSpeed": {
 166                         "generic_name": "vehicle.average.speed",
 167                         "bit_position": 0,
 168                         "bit_size": 15,
 169                         "factor": 0.015625,
 170                         "offset": 0,
 171                         "writable": false
 172                 }
 173         }
 174         },
 175         "0x30": {
 176         "bus": "ls",
 177         "is_fd" : false,
 178         "is_extended": true,
 179         "is_j1939" : false,
 180         "length" : 8,
 181         "signals": {
 182                 "LeftTemperature": {
 183                         "generic_name": "hvac.temperature.left",
 184                         "bit_position": 0,
 185                         "bit_size": 8,
 186                         "factor": 1,
 187                         "offset": 0,
 188                         "writable": true
 189                 },
 190                 "RightTemperature": {
 191                         "generic_name": "hvac.temperature.right",
 192                         "bit_position": 8,
 193                         "bit_size": 8,
 194                         "factor": 1,
 195                         "offset": 0,
 196                         "writable": true
 197                 },
 198                 "Temperature": {
 199                         "generic_name": "hvac.temperature.average",
 200                         "bit_position": 16,
 201                         "bit_size": 8,
 202                         "factor": 1,
 203                         "offset": 0,
 204                         "writable": true
 205                 },
 206                 "FanSpeed": {
 207                         "generic_name": "hvac.fan.speed",
 208                         "bit_position": 32,
 209                         "bit_size": 8,
 210                         "factor": 23.529411765,
 211                         "offset": 0,
 212                         "writable": true
 213                 }
 214         }
 215     },
 216     "61442": {
 217         "comment": "Electronic Transmission Controller 1",
 218         "length": 8,
 219         "name": "ETC1",
 220         "bus" : "j1939",
 221         "is_fd" : false,
 222         "is_extended": false,
 223         "is_j1939" : true,
 224         "signals" : {
 225             "Trns.Trque.Converter.Lockup.Engaged" : {
 226                 "generic_name": "Trns.Trque.Converter.Lockup.Engaged",
 227                 "bit_position": 2,
 228                 "bit_size": 2,
 229                 "factor": 1,
 230                 "offset": 0,
 231                 "comment": "State signal which indicates whether the torque converter lockup is engaged.",
 232                 "is_big_endian": false,
 233                 "is_signed": false,
 234                 "writable" : true,
 235                 "states": {
 236                     "TorqueConverterLockupDisengaged": [0],
 237                     "TorqueConverterLockupEngaged": [1],
 238                     "Error": [2],
 239                     "NotAvailable": [3]
 240                 }
 241             },
 242             "Trns.Trq.Cnvrtr.Lckp.Trnstn.In.Prcess" : {
 243                 "generic_name": "Trns.Trq.Cnvrtr.Lckp.Trnstn.In.Prcess",
 244                 "bit_position": 6,
 245                 "bit_size": 2,
 246                 "factor": 1,
 247                 "offset": 0,
 248                 "comment": "State signal indicating whether or not the transmission torque converter lock up clutch is transitioning between being",
 249                 "is_big_endian": false,
 250                 "is_signed": false,
 251                 "writable" : true,
 252                 "states": {
 253                     "TransitionIsNotInProcess": [0],
 254                     "TransitionIsInProcess": [1],
 255                     "Error": [2],
 256                     "NotAvailable": [3]
 257                 }
 258             },
 259             "Src.Addrss.Of.Ctrllng.Dvc.Fr.Trns.Cntrl" : {
 260                 "generic_name": "Src.Addrss.Of.Ctrllng.Dvc.Fr.Trns.Cntrl",
 261                 "bit_position": 56,
 262                 "bit_size": 8,
 263                 "factor": 1,
 264                 "offset": 0,
 265                 "comment": "The source address of the SAE J1939 device currently controlling the transmission.",
 266                 "is_big_endian": false,
 267                 "is_signed": false,
 268                 "writable" : true
 269             },
 270             "Momentary.Eng.Max.Power.Enable" : {
 271                 "generic_name": "Momentary.Eng.Max.Power.Enable",
 272                 "bit_position": 36,
 273                 "bit_size": 2,
 274                 "factor": 1,
 275                 "offset": 0,
 276                 "comment": "Momentarily Requesting highest torque map from the engine control",
 277                 "is_big_endian": false,
 278                 "is_signed": false,
 279                 "writable" : true,
 280                 "states": {
 281                     "notRqingMaxPowerAvailable": [0],
 282                     "mmntarilyRqingMaxPowerAvailable": [1],
 283                     "fault": [2],
 284                     "notAvailable": [3]
 285                 }
 286             },
 287             "Trans.Input.Shaft.Speed" : {
 288                 "generic_name": "Trans.Input.Shaft.Speed",
 289                 "bit_position": 40,
 290                 "bit_size": 16,
 291                 "factor": 0.125,
 292                 "offset": 0,
 293                 "comment": "Rotational velocity of the primary shaft transferring power into the transmission.",
 294                 "unit": "rpm",
 295                 "is_big_endian": false,
 296                 "is_signed": false,
 297                 "writable" : true
 298             },
 299             "Progressive.Shift.Disable" : {
 300                 "generic_name": "Progressive.Shift.Disable",
 301                 "bit_position": 34,
 302                 "bit_size": 2,
 303                 "factor": 1,
 304                 "offset": 0,
 305                 "comment": "Command signal used to indicate that progressive shifting by the engine should be disallowed.",
 306                 "is_big_endian": false,
 307                 "is_signed": false,
 308                 "writable" : true,
 309                 "states": {
 310                     "ProgressiveShiftIsNotDisabled": [0],
 311                     "ProgressiveShiftIsDisabled": [1],
 312                     "Reserved": [2],
 313                     "TakeNoAction": [3]
 314                 }
 315             },
 316             "Eng.Momentary.Overspeed.Enable" : {
 317                 "generic_name": "Eng.Momentary.Overspeed.Enable",
 318                 "bit_position": 32,
 319                 "bit_size": 2,
 320                 "factor": 1,
 321                 "offset": 0,
 322                 "comment": "Command signal used to indicate that the engine speed may be boosted up to the maximum engine overspeed value to",
 323                 "is_big_endian": false,
 324                 "is_signed": false,
 325                 "writable" : true,
 326                 "states": {
 327                     "MomentaryEngOverspeedIsDisabled": [0],
 328                     "MomentaryEngOverspeedIsEnabled": [1],
 329                     "Reserved": [2],
 330                     "TakeNoAction": [3]
 331                 }
 332             },
 333             "Percent.Clutch.Slip" : {
 334                 "generic_name": "Percent.Clutch.Slip",
 335                 "bit_position": 24,
 336                 "bit_size": 8,
 337                 "factor": 0.4,
 338                 "offset": 0,
 339                 "comment": "Parameter which represents the ratio of input shaft speed to current engine speed (in percent).",
 340                 "unit": "%",
 341                 "is_big_endian": false,
 342                 "is_signed": false,
 343                 "writable" : true
 344             },
 345             "Trans.Output.Shaft.Speed" : {
 346                 "generic_name": "Trans.Output.Shaft.Speed",
 347                 "bit_position": 8,
 348                 "bit_size": 16,
 349                 "factor": 0.125,
 350                 "offset": 0,
 351                 "comment": "Calculated speed of the transmission output shaft.",
 352                 "unit": "rpm",
 353                 "is_big_endian": false,
 354                 "is_signed": false,
 355                 "writable" : true
 356             },
 357             "Trans.Shift.In.Process" : {
 358                 "generic_name": "Trans.Shift.In.Process",
 359                 "bit_position": 4,
 360                 "bit_size": 2,
 361                 "factor": 1,
 362                 "offset": 0,
 363                 "comment": "Indicates that the transmission is in process of shifting from the current gear to the selected gear.",
 364                 "is_big_endian": false,
 365                 "is_signed": false,
 366                 "writable" : true,
 367                 "states": {
 368                     "ShiftIsNotInProcess": [0],
 369                     "ShiftInProcess": [1],
 370                     "Error": [2],
 371                     "NotAvailable": [3]
 372                 }
 373             },
 374             "Trans.Driveline.Engaged" : {
 375                 "generic_name": "Trans.Driveline.Engaged",
 376                 "bit_position": 0,
 377                 "bit_size": 2,
 378                 "factor": 1,
 379                 "offset": 0,
 380                 "comment": "Driveline engaged indicates the transmission controlled portion of the driveline is engaged sufficiently to allow a transfer",
 381                 "is_big_endian": false,
 382                 "is_signed": false,
 383                 "writable" : true,
 384                 "states": {
 385                     "DrivelineDisengaged": [0],
 386                     "DrivelineEngaged": [1],
 387                     "Error": [2],
 388                     "NotAvailable": [3]
 389                 }
 390             }
 391         }
 392     },
 393     "61444": {
 394         "comment": "Electronic Engine Controller 1",
 395         "length": 8,
 396         "name": "EEC1",
 397         "bus" : "j1939",
 398         "is_fd" : false,
 399         "is_extended": false,
 400         "is_j1939" : true,
 401         "signals" : {
 402             "Src.AddrssOf.Ctrllng.Dvc.Fr.Eng.Cntrl" : {
 403                 "generic_name": "Src.AddrssOf.Ctrllng.Dvc.Fr.Eng.Cntrl",
 404                 "bit_position": 40,
 405                 "bit_size": 8,
 406                 "factor": 1,
 407                 "offset": 0,
 408                 "comment": "The source address of the SAE J1939 device currently controlling the engine.",
 409                 "is_big_endian": false,
 410                 "is_signed": false
 411             },
 412             "Actl.Eng.Prcnt.Trque.High.Resolution" : {
 413                 "generic_name": "Actl.Eng.Prcnt.Trque.High.Resolution",
 414                 "bit_position": 4,
 415                 "bit_size": 4,
 416                 "factor": 0.125,
 417                 "offset": 0,
 418                 "comment": "This parameter displays an additional torque in percent of the reference engine torque.",
 419                 "unit": "%",
 420                 "is_big_endian": false,
 421                 "is_signed": false,
 422                 "states": {
 423                     "0000": [0],
 424                     "0125": [1],
 425                     "0875": [7],
 426                     "1111NotAvailable": [8]
 427                 }
 428             },
 429             "Eng.Demand.Percent.Torque" : {
 430                 "generic_name": "Eng.Demand.Percent.Torque",
 431                 "bit_position": 56,
 432                 "bit_size": 8,
 433                 "factor": 1,
 434                 "offset": -125,
 435                 "comment": "The requested torque output of the engine by all dynamic internal inputs, including smoke control, noise control and low",
 436                 "unit": "%",
 437                 "is_big_endian": false,
 438                 "is_signed": false
 439             },
 440             "Eng.Starter.Mode" : {
 441                 "generic_name": "Eng.Starter.Mode",
 442                 "bit_position": 48,
 443                 "bit_size": 4,
 444                 "factor": 1,
 445                 "offset": 0,
 446                 "comment": "There are several phases in a starting action and different reasons why a start cannot take place.",
 447                 "is_big_endian": false,
 448                 "is_signed": false,
 449                 "states": {
 450                     "startNotRqed": [0],
 451                     "starterActiveGearNotEngaged": [1],
 452                     "starterActiveGearEngaged": [2],
 453                     "strtFnshdStrtrNtActvAftrHvngBnA": [3],
 454                     "strtrInhbtdDToEngAlreadyRunning": [4],
 455                     "strtrInhbtdDTEngNtReadyForStart": [5],
 456                     "strtrInhbtdDTDrvlnEnggdOthrTrns": [6],
 457                     "strtrInhbtdDToActiveImmobilizer": [7],
 458                     "strtrInhbtdDueToStarterOvertemp": [8],
 459                     "1011Reserved": [9],
 460                     "starterInhibitedReasonUnknown": [12],
 461                     "error": [14],
 462                     "notAvailable": [15]
 463                 }
 464             },
 465             "Eng.Speed" : {
 466                 "generic_name": "Eng.Speed",
 467                 "bit_position": 24,
 468                 "bit_size": 16,
 469                 "factor": 0.125,
 470                 "offset": 0,
 471                 "comment": "Actual engine speed which is calculated over a minimum crankshaft angle of 720 degrees divided by the number of cylinders.",
 472                 "unit": "rpm",
 473                 "is_big_endian": false,
 474                 "is_signed": false
 475             },
 476             "Actual.Eng.Percent.Torque" : {
 477                 "generic_name": "Actual.Eng.Percent.Torque",
 478                 "bit_position": 16,
 479                 "bit_size": 8,
 480                 "factor": 1,
 481                 "offset": -125,
 482                 "comment": "The calculated output torque of the engine.",
 483                 "unit": "%",
 484                 "is_big_endian": false,
 485                 "is_signed": false
 486             },
 487             "Drivers.Demand.Eng.Percent.Torque" : {
 488                 "generic_name": "Drivers.Demand.Eng.Percent.Torque",
 489                 "bit_position": 8,
 490                 "bit_size": 8,
 491                 "factor": 1,
 492                 "offset": -125,
 493                 "comment": "The requested torque output of the engine by the driver.",
 494                 "unit": "%",
 495                 "is_big_endian": false,
 496                 "is_signed": false
 497             },
 498             "Eng.Torque.Mode" : {
 499                 "generic_name": "Eng.Torque.Mode",
 500                 "bit_position": 0,
 501                 "bit_size": 4,
 502                 "factor": 1,
 503                 "offset": 0,
 504                 "comment": "State signal which indicates which engine torque mode is currently generating, limiting, or controlling the torque.",
 505                 "is_big_endian": false,
 506                 "is_signed": false,
 507                 "states": {
 508                     "Low idle governor/no request (de": [0],
 509                     "Accelerator pedal/operator selec": [1],
 510                     "Cruise control": [2],
 511                     "PTO governor": [3],
 512                     "Road speed governor": [4],
 513                     "ASR control": [5],
 514                     "Transmission control": [6],
 515                     "ABS control": [7],
 516                     "Torque limiting": [8],
 517                     "High speed governor": [9],
 518                     "Braking system": [10],
 519                     "Remote accelerator": [11],
 520                     "Not available": [15]
 521                 }
 522             }
 523         }
 524     },
 525     "65253": {
 526         "comment": "Engine Hours, Revolutions",
 527         "length": 8,
 528         "name": "HOURS",
 529         "bus" : "j1939",
 530         "is_fd" : false,
 531         "is_extended": false,
 532         "is_j1939" : true,
 533         "signals" : {
 534             "Eng.Total.Revolutions" : {
 535                 "generic_name": "Eng.Total.Revolutions",
 536                 "bit_position": 32,
 537                 "bit_size": 32,
 538                 "factor": 1000,
 539                 "offset": 0,
 540                 "comment": "Accumulated number of revolutions of engine crankshaft during its operation.",
 541                 "unit": "r",
 542                 "is_big_endian": false,
 543                 "is_signed": false
 544             },
 545             "Eng.Total.Hours.Of.Operation" : {
 546                 "generic_name": "Eng.Total.Hours.Of.Operation",
 547                 "bit_position": 0,
 548                 "bit_size": 32,
 549                 "factor": 0.05,
 550                 "offset": 0,
 551                 "comment": "Accumulated time of operation of engine.",
 552                 "unit": "hr",
 553                 "is_big_endian": false,
 554                 "is_signed": false
 555             }
 556         }
 557     },
 558     "61449": {
 559         "comment": "Vehicle Dynamic Stability Control 2",
 560         "length": 8,
 561         "name": "VDC2",
 562         "bus" : "j1939",
 563         "is_fd" : false,
 564         "is_extended": false,
 565         "is_j1939" : true,
 566         "signals" : {
 567             "Steer.Wheel.Angle" : {
 568                 "generic_name": "Steer.Wheel.Angle",
 569                 "bit_position": 0,
 570                 "bit_size": 16,
 571                 "factor": 0.0009765625,
 572                 "offset": -31.374,
 573                 "comment": "The main operator`s steering wheel angle (on the steering column, not the actual wheel angle).",
 574                 "unit": "rad",
 575                 "is_big_endian": false,
 576                 "is_signed": false
 577             },
 578             "Longitudinal.Acceleration" : {
 579                 "generic_name": "Longitudinal.Acceleration",
 580                 "bit_position": 56,
 581                 "bit_size": 8,
 582                 "factor": 0.1,
 583                 "offset": -12.5,
 584                 "comment": "Indicates the longitudinal acceleration of the vehicle.",
 585                 "unit": "m/s/s",
 586                 "is_big_endian": false,
 587                 "is_signed": false
 588             },
 589             "Lateral.Acceleration" : {
 590                 "generic_name": "Lateral.Acceleration",
 591                 "bit_position": 40,
 592                 "bit_size": 16,
 593                 "factor": 0.00048828125,
 594                 "offset": -15.687,
 595                 "comment": "Indicates a lateral acceleration of the vehicle.",
 596                 "unit": "m/s/s",
 597                 "is_big_endian": false,
 598                 "is_signed": false
 599             },
 600             "Yaw.Rate" : {
 601                 "generic_name": "Yaw.Rate",
 602                 "bit_position": 24,
 603                 "bit_size": 16,
 604                 "factor": 0.0001220703125,
 605                 "offset": -3.92,
 606                 "comment": "Indicates the rotation about the vertical axis.",
 607                 "unit": "rad/s",
 608                 "is_big_endian": false,
 609                 "is_signed": false
 610             },
 611             "Steer.Wheel.Angle.Sensor.Type" : {
 612                 "generic_name": "Steer.Wheel.Angle.Sensor.Type",
 613                 "bit_position": 22,
 614                 "bit_size": 2,
 615                 "factor": 1,
 616                 "offset": 0,
 617                 "comment": "Indicates whether the steering wheel angle sensor is capable of absolute measuring of the number of steering wheel",
 618                 "is_big_endian": false,
 619                 "is_signed": false,
 620                 "states": {
 621                     "RelativeMeasuringPrinciple": [0],
 622                     "AbsMeasuringPrinciple": [1],
 623                     "Reserved": [2],
 624                     "NotAvailable": [3]
 625                 }
 626             },
 627             "Steer.Wheel.Turn.Counter" : {
 628                 "generic_name": "Steer.Wheel.Turn.Counter",
 629                 "bit_position": 16,
 630                 "bit_size": 6,
 631                 "factor": 1,
 632                 "offset": -32,
 633                 "comment": "Indicates number of steering wheel turns, absolute position or relative position at ignition on.",
 634                 "unit": "turns",
 635                 "is_big_endian": false,
 636                 "is_signed": false
 637             }
 638         }
 639     },
 640     "65215": {
 641         "comment": "Wheel Speed Information",
 642         "length": 8,
 643         "name": "EBC2",
 644         "bus" : "j1939",
 645         "is_fd" : false,
 646         "is_extended": false,
 647         "is_j1939" : true,
 648         "signals" : {
 649             "Rlative.Speed.Rear.Axle2.Right.Wheel" : {
 650                 "generic_name": "Rlative.Speed.Rear.Axle2.Right.Wheel",
 651                 "bit_position": 56,
 652                 "bit_size": 8,
 653                 "factor": 0.0625,
 654                 "offset": -7.8125,
 655                 "comment": "The speed of the rear axle #2, right wheel relative to the front axle speed, SPN 904.",
 656                 "unit": "km/h",
 657                 "is_big_endian": false,
 658                 "is_signed": false
 659             },
 660             "Relative.Speed.Rear.Axle2.Left.Wheel" : {
 661                 "generic_name": "Relative.Speed.Rear.Axle2.Left.Wheel",
 662                 "bit_position": 48,
 663                 "bit_size": 8,
 664                 "factor": 0.0625,
 665                 "offset": -7.8125,
 666                 "comment": "The speed of the rear axle #2, left wheel relative to the front axle speed, SPN 904.",
 667                 "unit": "km/h",
 668                 "is_big_endian": false,
 669                 "is_signed": false
 670             },
 671             "Rlative.Speed.Rear.Axle1.Right.Wheel" : {
 672                 "generic_name": "Rlative.Speed.Rear.Axle1.Right.Wheel",
 673                 "bit_position": 40,
 674                 "bit_size": 8,
 675                 "factor": 0.0625,
 676                 "offset": -7.8125,
 677                 "comment": "The speed of the rear axle #1, right wheel relative to the front axle speed, SPN 904.",
 678                 "unit": "km/h",
 679                 "is_big_endian": false,
 680                 "is_signed": false
 681             },
 682             "Relative.Speed.Rear.Axle1.Left.Wheel" : {
 683                 "generic_name": "Relative.Speed.Rear.Axle1.Left.Wheel",
 684                 "bit_position": 32,
 685                 "bit_size": 8,
 686                 "factor": 0.0625,
 687                 "offset": -7.8125,
 688                 "comment": "The speed of the rear axle #1, left wheel relative to the front axle speed, SPN 904.",
 689                 "unit": "km/h",
 690                 "is_big_endian": false,
 691                 "is_signed": false
 692             },
 693             "Rlative.Speed.Front.Axle.Right.Wheel" : {
 694                 "generic_name": "Rlative.Speed.Front.Axle.Right.Wheel",
 695                 "bit_position": 24,
 696                 "bit_size": 8,
 697                 "factor": 0.0625,
 698                 "offset": -7.8125,
 699                 "comment": "The speed of the front axle, right wheel relative to the front axle speed, SPN 904.",
 700                 "unit": "km/h",
 701                 "is_big_endian": false,
 702                 "is_signed": false
 703             },
 704             "Relative.Speed.Front.Axle.Left.Wheel" : {
 705                 "generic_name": "Relative.Speed.Front.Axle.Left.Wheel",
 706                 "bit_position": 16,
 707                 "bit_size": 8,
 708                 "factor": 0.0625,
 709                 "offset": -7.8125,
 710                 "comment": "The speed of the front axle, left wheel relative to the front axle speed, SPN 904.",
 711                 "unit": "km/h",
 712                 "is_big_endian": false,
 713                 "is_signed": false
 714             },
 715             "Front.Axle.Speed" : {
 716                 "generic_name": "Front.Axle.Speed",
 717                 "bit_position": 0,
 718                 "bit_size": 16,
 719                 "factor": 0.00390625,
 720                 "offset": 0,
 721                 "comment": "The average speed of the two front wheels.",
 722                 "unit": "km/h",
 723                 "is_big_endian": false,
 724                 "is_signed": false
 725             }
 726         }
 727     },
 728     "65262": {
 729         "comment": "Engine Temperature 1",
 730         "length": 8,
 731         "name": "ET1",
 732         "bus" : "j1939",
 733         "is_fd" : false,
 734         "is_extended": false,
 735         "is_j1939" : true,
 736         "signals" : {
 737             "Eng.Fuel.Temp1" : {
 738                 "generic_name": "Eng.Fuel.Temp1",
 739                 "bit_position": 8,
 740                 "bit_size": 8,
 741                 "factor": 1,
 742                 "offset": -40,
 743                 "comment": "Temperature of fuel (or gas) passing through the first fuel control system.",
 744                 "unit": "deg C",
 745                 "is_big_endian": false,
 746                 "is_signed": false
 747             },
 748             "Eng.Intercooler.Thermostat.Opening" : {
 749                 "generic_name": "Eng.Intercooler.Thermostat.Opening",
 750                 "bit_position": 56,
 751                 "bit_size": 8,
 752                 "factor": 0.4,
 753                 "offset": 0,
 754                 "comment": "The current position of the thermostat used to regulate the temperature of the engine intercooler.",
 755                 "unit": "%",
 756                 "is_big_endian": false,
 757                 "is_signed": false
 758             },
 759             "Eng.Intercooler.Temp" : {
 760                 "generic_name": "Eng.Intercooler.Temp",
 761                 "bit_position": 48,
 762                 "bit_size": 8,
 763                 "factor": 1,
 764                 "offset": -40,
 765                 "comment": "Temperature of liquid found in the intercooler located after the turbocharger.",
 766                 "unit": "deg C",
 767                 "is_big_endian": false,
 768                 "is_signed": false
 769             },
 770             "Eng.Turbo.Oil.Temp" : {
 771                 "generic_name": "Eng.Turbo.Oil.Temp",
 772                 "bit_position": 32,
 773                 "bit_size": 16,
 774                 "factor": 0.03125,
 775                 "offset": -273,
 776                 "comment": "Temperature of the turbocharger lubricant.",
 777                 "unit": "deg C",
 778                 "is_big_endian": false,
 779                 "is_signed": false
 780             },
 781             "Eng.Oil.Temp1" : {
 782                 "generic_name": "Eng.Oil.Temp1",
 783                 "bit_position": 16,
 784                 "bit_size": 16,
 785                 "factor": 0.03125,
 786                 "offset": -273,
 787                 "comment": "Temperature of the engine lubricant.",
 788                 "unit": "deg C",
 789                 "is_big_endian": false,
 790                 "is_signed": false
 791             },
 792             "Eng.Coolant.Temp" : {
 793                 "generic_name": "Eng.Coolant.Temp",
 794                 "bit_position": 0,
 795                 "bit_size": 8,
 796                 "factor": 0.03125,
 797                 "offset": -273,
 798                 "comment": "Temperature of liquid found in engine cooling system.",
 799                 "unit": "deg C",
 800                 "is_big_endian": false,
 801                 "is_signed": false
 802             }
 803         }
 804     }
 805 },
 806 "diagnostic_messages": [
 807                 {
 808                         "bus": "hs",
 809                         "pid": 4,
 810                         "name": "engine.load",
 811                         "frequency": 5,
 812                         "decoder": "decoder_t::decode_obd2_response"
 813                 },
 814                 {
 815                         "bus": "hs",
 816                         "pid": 5,
 817                         "name": "engine.coolant.temperature",
 818                         "frequency": 1,
 819                         "decoder": "decoder_t::decode_obd2_response"
 820                 },
 821                 {
 822                         "bus": "hs",
 823                         "pid": 10,
 824                         "name": "fuel.pressure",
 825                         "frequency": 1,
 826                         "decoder": "decoder_t::decode_obd2_response"
 827                 },
 828                 {
 829                         "bus": "hs",
 830                         "pid": 11,
 831                         "name": "intake.manifold.pressure",
 832                         "frequency": 1,
 833                         "decoder": "decoder_t::decode_obd2_response"
 834                 },
 835                 {
 836                         "bus": "hs",
 837                         "pid": 12,
 838                         "name": "engine.speed",
 839                         "frequency": 5,
 840                         "decoder": "decoder_t::decode_obd2_response"
 841                 },
 842                 {
 843                         "bus": "hs",
 844                         "pid": 13,
 845                         "name": "vehicle.speed",
 846                         "frequency": 5,
 847                         "decoder": "decoder_t::decode_obd2_response"
 848                 },
 849                 {
 850                         "bus": "hs",
 851                         "pid": 15,
 852                         "name": "intake.air.temperature",
 853                         "frequency": 1,
 854                         "decoder": "decoder_t::decode_obd2_response"
 855                 },
 856                 {
 857                         "bus": "hs",
 858                         "pid": 16,
 859                         "name": "mass.airflow",
 860                         "frequency": 5,
 861                         "decoder": "decoder_t::decode_obd2_response"
 862                 },
 863                 {
 864                         "bus": "hs",
 865                         "pid": 17,
 866                         "name": "throttle.position",
 867                         "frequency": 5,
 868                         "decoder": "decoder_t::decode_obd2_response"
 869                 },
 870                 {
 871                         "bus": "hs",
 872                         "pid": 31,
 873                         "name": "running.time",
 874                         "frequency": 1,
 875                         "decoder": "decoder_t::decode_obd2_response"
 876                 },
 877                 {
 878                         "bus": "hs",
 879                         "pid": 45,
 880                         "name": "EGR.error",
 881                         "frequency": 0,
 882                         "decoder": "decoder_t::decode_obd2_response"
 883                 },
 884                 {
 885                         "bus": "hs",
 886                         "pid": 47,
 887                         "name": "fuel.level",
 888                         "frequency": 1,
 889                         "decoder": "decoder_t::decode_obd2_response"
 890                 },
 891                 {
 892                         "bus": "hs",
 893                         "pid": 51,
 894                         "name": "barometric.pressure",
 895                         "frequency": 1,
 896                         "decoder": "decoder_t::decode_obd2_response"
 897                 },
 898                 {
 899                         "bus": "hs",
 900                         "pid": 70,
 901                         "name": "ambient.air.temperature",
 902                         "frequency": 1,
 903                         "decoder": "decoder_t::decode_obd2_response"
 904                 },
 905                 {
 906                         "bus": "hs",
 907                         "pid": 76,
 908                         "name": "commanded.throttle.position",
 909                         "frequency": 1,
 910                         "decoder": "decoder_t::decode_obd2_response"
 911                 },
 912                 {
 913                         "bus": "hs",
 914                         "pid": 82,
 915                         "name": "ethanol.fuel.percentage",
 916                         "frequency": 1,
 917                         "decoder": "decoder_t::decode_obd2_response"
 918                 },
 919                 {
 920                         "bus": "hs",
 921                         "pid": 90,
 922                         "name": "accelerator.pedal.position",
 923                         "frequency": 5,
 924                         "decoder": "decoder_t::decode_obd2_response"
 925                 },
 926                 {
 927                         "bus": "hs",
 928                         "pid": 91,
 929                         "name": "hybrid.battery-pack.remaining.life",
 930                         "frequency": 5,
 931                         "decoder": "decoder_t::decode_obd2_response"
 932                 },
 933                 {
 934                         "bus": "hs",
 935                         "pid": 92,
 936                         "name": "engine.oil.temperature",
 937                         "frequency": 1,
 938                         "decoder": "decoder_t::decode_obd2_response"
 939                 },
 940                 {
 941                         "bus": "hs",
 942                         "pid": 94,
 943                         "name": "engine.fuel.rate",
 944                         "frequency": 1,
 945                         "decoder": "decoder_t::decode_obd2_response"
 946                 },
 947                 {
 948                         "bus": "hs",
 949                         "pid": 99,
 950                         "name": "engine.torque",
 951                         "frequency": 1,
 952                         "decoder": "decoder_t::decode_obd2_response"
 953                 }
 954         ]
 955 }