       ___  __        __     __                          ___
|\/| |  |  /__` |  | |__) | /__` |__| |    | __  |\/| | |__  \  /
|  | |  |  .__/ \__/ |__) | .__/ |  | |    |     |  | | |___  \/
                __                __        __
               /  `  /\  |\ |    |__) |  | /__`
               \__, /~~\ | \|    |__) \__/ .__/

This project aims to document the OBD-II codes for Mitsubishi I-Miev electric vehicle.

Conventions used in this document:

Message ID is always 3 hex characters
Data bytes are zero-indexed: D0, D1, etc

OBD-II Traffic analysis

Periodically occurring PIDs:

1000ms (1 fps): 01C ¹
200ms (5 fps): 568 ¹
100ms (10 fps): 012,101, 286, 298, 29A, 2F2, 374, 375, 377, 384, 385, 389 ¹, 38A ¹, 3A4, 408, 412, 695, 696, 697, 6FA, 75A, 75B
50ms (20 fps): 38D, 564, 565, 5A1, 6D0, 6D1, 6D2, 6D3, 6D4, 6D5, 6D6, 6DA
40ms (25 fps): 424, 6E1/6E2/6E3/6E4
20ms (50 fps): 119, 149, 156, 200, 208, 210, 212, 215, 231, 300, 308, 325, 346, 418
10ms (100fps): 236, 285, 288, 373

PID descriptions

012

Key status (early iMiEV)

Transmitted every 100ms. Data bits:

D2: 0x04 Key is turned on

101

Key status (later iMiEV)

Transmitted every 100ms. Data bits:

D0: 0x04 Key is turned on

149

Rotation ESC

Transmitted every 20ms. Data bits:

D4-D5: Rotation ESC: (D5 * 256 + D4 - 32934) / 32.934 (OBDZero)

200

Wheel rotation

Transmitted every 20ms. Data bits:

D2-D3: Wheel rotation: (D2 * 256 + D3 - 49152) / 19 (OBDZero)
D3-D4: Wheel rotation: (D4 * 256 + D5 - 49152) / 19 (OBDZero)

208

Brake pedal / Wheel rotation

Break pedal sensor data is transmitted every 20ms. Data bits seem to be following:

D2-D3: Brake pedal position (D2 * 256 + d3 - 24576) / 6.4
D4-D5: Wheel rotation: (D4 * 256 + D5 - 49152) / 19 (OBDZero)
D6-D7: Wheel rotation: (D6 * 256 + D7 - 49152) / 19 (OBDZero)

210

Gas pedal

Gas pedal sensor data is transmitted every 20ms. Data bits seem to be following:

D2: gas pedal position (%) D2 * 0.4

215

Vehicle speed

Transmitted every 20ms. Data bits:

D0-D1: vehicle speed: (D0 * 256 + D1) / 128

231

Brake pedal switch sensor

Transmitted every 20ms. Data bits:

D4: 0x02 if brake is free, 0x00 if brake pedal is pressed

236

Steering wheel sensor

Transmitted every 10ms. Data bits:

D0-D1: Steering wheel position with 0.5 degree accuracy, center point (0.0 degrees) = D0:0x10, D1:0x00. (((D0 * 256) + D1) - 4096) / 2 = steering wheel position in degrees). Negative angle - right, positive angle left.
D2-D3: possibly represents rate of change, defaults to D2:0x10, D3:0x00 when steering wheel is at rest.

285

Transmitted every 10ms. Data bits:

D0-D1: Acceleration (D0 * 256 + D1 - 2000) / 400

286

Transmitted every 100ms. Data bits:

298

Transmitted every 100ms. Data bits:

D0-D3: Motor temp D* - 40
D6-D7: Motor RPM D6 * 256 + D7 - 10000

29A

Vehicle identification number

Transmitted every 100ms. Data bits:

346

Estimated range, handbrake

Transmitted every 20ms. Data bits:

D4 handbrake D4 bit 32 released
D7 Estimated range: D7

373

Battery

Transmitted every 10ms. Data bits:

D0: Battery Cell Maximum Voltage (V): (D0 + 210) / 10 (OBDZero)
D1: Battery Cell Minimum Voltage (V): (D1 + 210) / 10 (OBDZero)
D2-D3: Battery pack amps (A) (D2 * 256 + D3 - 32768)/100
D4-D5: Battery pack voltage (V) (D4 * 256 + D5) / 10

374

Battery SOC

Transmitted every 100ms. Data bits:

D0: State of charge (%): (D0 - 10) / 2 (OBDZero)
D1: State of charge (%): (D1 - 10) / 2
D4: Cell Maximum temperature (oC): D4 - 50 (OBDZero)
D5: Cell Minimum temperature (oC): D5 - 50 (OBDZero)
D6: Battery 100% capacity (Ah): D6 / 2 (OBDZero)

377

OBC (data from https://openinverter.org/wiki/Mitsubishi_Outlander_DCDC_OBC)

Transmitted every 100ms. Data bits:

D0-D1: 12V battery voltage in mV: D0 + D1
D2 + D3 12V battery charging current in A: (D2 + D3) / 10
D4-D6 = temperatures of OBC: D* - 40
D7 = status bytes

Bits	D0
0:	Error
1:	In Operation
2:
3:
4:
5:	Ready
6:
7:

384

Heating / Cooling

Transmitted every 100ms. Data bits:

D0: AC (A): (D0 * 256 + D1) / 1000
D3: Charging 12V Battery (A): D3 / 100 (OBDZero)
D4: Heating (A): D4 / 10
D5: Heating water temp return: (D5 - 32) / 1.8) - 3 OR D5 * 0.6 - 40
D6: Heating water temp flow: (D6 - 32) / 1.8) - 3 OR D6 * 0.6 - 40

389

Charger

Transmitted every 100ms. Data bits:

D0: Charge DC Voltage (V): 2 * D0 +1 (OBDZero)
D1: Charger Input voltage (V): D1
D2: Charge DC Input Current(A): D2 / 10 (OBDZero)
D3: Charger temp: D3 - 40 (D3 - 50 (OBDZero))
D4: Charger temp: D4 - 50 (OBDZero)
D6: Charging Input current (A): D6 / 10

3A4

Climate console

Transmitted every 100ms. Data bits:

D0: Heating level:
- D0 bit 15 = 7 Middle
- D0 bit 15 < 7 Cooling
- D0 bit 15 > 7 Heating
D0: Recirculation: D0 bit 64
D0: AC On: D0 bit 128
D0: Fan spee MAX: D0 bit 32
D1: Fan speed (%): ((D1 bit 15) * 12.5) + 0.5
D1: Ventillation direction:
- D1 >> 4 ³
  - 1/2: Face
  - 3/4: Legs + Face
  - 5/6: Legs
  - 7/8: Legs + Windshield
  - 9: Windshield

412

Speed + Odometer value

Transmitted every 100ms. Data bits:

D0: Key On D0 = 254
D1: Speed
D2-D4: Odometer ((((D2 >> 16) + D3) >> 8) + D4) ³

418

Gearshift

Transmitted every 20ms. Data bits:

D1:
- 80 : P
- 82 : R
- 78 : N
- 68 : D
- 131: B
- 50 : C

424

Light

Transmitted every 40ms. Data bits:

Bits	D0	D1	D2	D6
0:		hazard lights	Unlock doors
1:		Right Blinker	Unlock driver door
2:	Automatic light	Upper Beam
3:	Fog lights	Wiper rear		Rear window heating
4:	Rear fog light	Night headlights
5:		Sidelights
6:
7:

696

Motor

Transmitted every 100ms. Data bits:

D2-D3: Motor current (A): (D2 * 256 + D3 - 500) / 20 (OBDZero)
D6-D7: Regeneration amps (A): (D6 * 256 + D7 -10000) /5 (OBDZero)

697

CHAdeMO

Transmitted every 100ms. Data bits:

D0: Connected
D1: Percent (%) (OBDZero)
D2: Charger current (A)

6E1 6E2 6E3 6E4

Battery pack cells

Transmitted every 40ms. Data bits:

MessageID: 6E1 / 6E2 / 6E3 / 6E4

PID_ID: MessageID - 1761

D0: CMU index (CMU_ID): D0 bit 15
D1: Temperature 1 (T1): D[1] - 50
D2: Temperature 2 (T2): D[2] - 50
D3: Temperature 3 (T3): D[3] - 50
D4-D5: Cell voltage 1 (V1): ((D4 * 256 + D5) / 200) + 2.1
D6-D7: Cell voltage 2 (V2): ((D6 * 256 + D7) / 200) + 2.1

Voltage index (VOLT_ID): (CMU_ID - 1) * 8 + (2 * PID_ID) Temperature index (TEMP_ID): (CMU_ID - 1) * 6 + (2 * PID_ID)

Voltage and temperature index modify based on CMU_id (because cmu 6 has only 4 cell) If CMU_ID >= 7

voltage index: VOLT_ID - 4
temperature index: TEMP_ID - 3
VOLT_ID = V1
VOLT_ID + 1 = V2

Temperature index fix based on PID_ID

If PID_ID == 0 {

TEMP_ID = T2
TEMP_ID + 1 = T3 } else {
TEMP_ID = T1 if CMU_ID != 6 && CMU_ID != 12 (this 2 CMU contain T2) - TEMP_ID + 1 = T2 }

Comment

1: Possibly only sent in debug mode.
2: Available when car in sleep and wake up with CAN message
3: bitshift: 1 >> 1 == 1 * 2, 1 >> 2 == 1 * 4 , 1 >> 8 == 1 * 256, 1 >> 16 == 1 * 65536 ,
x >> 34 == x * 2^34

KommyKT/i-miev-obd2

OBD-II Traffic analysis

PID descriptions

012

101

149

200

208

210

215

231

236

285

286

298

29A

346

373

374

377

384

389

3A4

412

418

424

696

697

6E1 6E2 6E3 6E4

Comment