DSM/On-Board Diagnostics: Difference between revisions

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* https://www.dsmtuners.com/threads/on-board-diagnostic-between-mitsubishi-ecu-using-arduino.464711/
* https://www.dsmtuners.com/threads/on-board-diagnostic-between-mitsubishi-ecu-using-arduino.464711/
* http://mitsuduino.blogspot.com/?m=1
* http://mitsuduino.blogspot.com/?m=1
* https://gist.github.com/anonymous/5696499/forks
* https://gist.github.com/rizal-azalli/b5b7af16187f2f4d731f#file-obdcodetablevalue


=MUT-III=
{| class="wikitable"
!|Sensor
!|Address
!|Data Min
!|Data Max
!|Function
!|Unit
|-
|Accel Enrichment
|0x1D
|0x01 == 0%
|0xFF == 100%
|y = 100(x/255)
|%
|-
|Coolant Temp
|0x07
|0x01 == 307deg F
|0xFF == -62deg F
|y = -1.45x + 308
|deg F
|-
|Engine Speed
|0x21
|0x01 == 31
|0xFF == 7969
|y = 31.25x
|rpm
|-
|Fuel Trim High
|0x0E
|0x01 == 1%
|0xFF == 199%
|y = .78x
|%
|-
|Fuel Trim Low
|0x0C
|0x01 == 1%
|0xFF == 199%
|y = .78x
|%
|-
|Fuel Trim Middle
|0x0D
|0x01 == 1%
|0xFF == 199%
|y = .78x
|%
|-
|Injector Pulse Width
|0x29
|0x01 == .256ms
|0xFF == 65.3ms
|y = .256x
|ms
|-
|Oxygen Feedback Trim
|0x0F
|0x01 == 1%
|0xFF == 199%
|y = .78x
|%
|-
|Oxygen Sensor
|0x13
|0x01 == .02v
|0xFF == 4.98v
|y = .0195x
|v
|-
|Throttle Position
|0x17
|0x01 == 0%
|0xFF == 100%
|y = 100(x/255)
|%
|-
|Air Flow Hz
|0x1A
|0x01 == 6Hz
|0xFF == 1606Hz
|y = 6.29x
|Hz
|-
|Air Temperature
|0x3A
|0x01 == 356deg F
|0xFF == -74deg F
|y = -1.69x + 358
|deg F
|-
|Air Volume
|0x2C
|0x01 == 1
|0xFF == 255
|y = x
|-
|Barometer
|0x15
|0x01 == 0bar
|0xFF == 1.24bar
|y = .00486x
|bar
|-
|ISC Steps
|0x16
|0x01 == 1
|0xFF == 255
|y = x
|-
|Knock Sum
|0x26
|0x01 == 1
|0xFF == 255
|y = x
|-
|Timing Advance
|0x06
|0x01 == -9 deg
|0xFF == 245 deg
|y = x - 10
|deg
|-
|Battery
|0x14
|0x01 == 0.1v
|0xFF == 18.7v
|y = .0733x
|v
|-
|EGR Temperature
|0x12
|0x01 == 595deg F
|0xFF == -94deg F
|y = -2.7x + 597.7
|deg F
|-
|TDC
|0x02
|0x04 (inverted)
|-
|Power Steering
|0x02
|0x08 (inverted)
|-
|AC Switch
|0x02
|0x10 (inverted)
|-
|Park/Neutral
|0x02
|0x20 (inverted)
|-
|Idle Switch
|0x02
|0x80 (inverted)
|-
|AC Clutch
|0x00
|0x20 (inverted)
|}


==Downloads==
{| class="wikitable"
!|Byte from
!|Byte to
!|Description
|-
|$00
|$3d
|Regular queries, return the value of the
variables showed in obdTable located below,
see each variable definition... First value in table
correspond to obd query code $00, increases by 1
for each table value
|-
|$3e
|$3f
|Converted to $3d, see that obd code
|-
|$40
|$c9
|Returns what is stored in that ram address
|-
|$ca
|$ca
|Erase all fault codes and returns $00 if
engine not rotating. If engine is rotating, all
actuators/injector commands are reset and $ff
is returned.
|-
|$cb
|$f0
|Returns what is stored in that ram address
|-
|$f1
|$fc
|Injector/actuators commands, returns $ff if successfull
|-
!colspan="2"|Byte
!|Description
|-
|colspan="2"|$f1
|Activate boost control solenoid
|-
|colspan="2"|$f2
|Unused in code
|-
|colspan="2"|$f3
|Activate egr solenoid
|-
|colspan="2"|$f4
|Activate fuel pressure solenoid
|-
|colspan="2"|$f5
|Activate purge solenoid
|-
|colspan="2"|$f6
|Turn on fuel pump
|-
|colspan="2"|$f7
|Disable injector #6 (inoperative in code)
|-
|colspan="2"|$f8
|Disable injector #5 (inoperative in code)
|-
|colspan="2"|$f9
|Disable injector #4
|-
|colspan="2"|$fa
|Disable injector #3
|-
|colspan="2"|$fb
|Disable injector #2
|-
|colspan="2"|$fc
|Disable injector #1
|-
!|Byte from
!|Byte to
!|Description
|-
|$f1
|$ff
|Special queries
|-
!colspan="2"|Byte
!|Description
|-
|colspan="2"|$fd
|Serial link test, returns $b5 (E931) or $b7 (E932)
|-
|colspan="2"|$fe
|resistor strapping low word from t_strap3
|-
|colspan="2"|$ff
|resistor strapping high word from t_strap3
|}
 
=Scantool=
* http://lcdbc.xp3.biz/Scantool.pdf
 
=MUT=
* https://evoecu.logic.net/wiki/MUT_Protocol
 
==MUT-III==
 
===Downloads===
* http://blog.obdii365.com/2019/10/04/mitsubishi-mut-iii-software-download-install-review/
* http://blog.obdii365.com/2019/10/04/mitsubishi-mut-iii-software-download-install-review/

Latest revision as of 21:55, 20 September 2021

OBD/OBDI/OBD1/ALDL

ALDL Adapter

Mitsuduino

Sensor Address Data Min Data Max Function Unit
Accel Enrichment 0x1D 0x01 == 0% 0xFF == 100% y = 100(x/255) %
Coolant Temp 0x07 0x01 == 307deg F 0xFF == -62deg F y = -1.45x + 308 deg F
Engine Speed 0x21 0x01 == 31 0xFF == 7969 y = 31.25x rpm
Fuel Trim High 0x0E 0x01 == 1% 0xFF == 199% y = .78x %
Fuel Trim Low 0x0C 0x01 == 1% 0xFF == 199% y = .78x %
Fuel Trim Middle 0x0D 0x01 == 1% 0xFF == 199% y = .78x %
Injector Pulse Width 0x29 0x01 == .256ms 0xFF == 65.3ms y = .256x ms
Oxygen Feedback Trim 0x0F 0x01 == 1% 0xFF == 199% y = .78x %
Oxygen Sensor 0x13 0x01 == .02v 0xFF == 4.98v y = .0195x v
Throttle Position 0x17 0x01 == 0% 0xFF == 100% y = 100(x/255) %
Air Flow Hz 0x1A 0x01 == 6Hz 0xFF == 1606Hz y = 6.29x Hz
Air Temperature 0x3A 0x01 == 356deg F 0xFF == -74deg F y = -1.69x + 358 deg F
Air Volume 0x2C 0x01 == 1 0xFF == 255 y = x
Barometer 0x15 0x01 == 0bar 0xFF == 1.24bar y = .00486x bar
ISC Steps 0x16 0x01 == 1 0xFF == 255 y = x
Knock Sum 0x26 0x01 == 1 0xFF == 255 y = x
Timing Advance 0x06 0x01 == -9 deg 0xFF == 245 deg y = x - 10 deg
Battery 0x14 0x01 == 0.1v 0xFF == 18.7v y = .0733x v
EGR Temperature 0x12 0x01 == 595deg F 0xFF == -94deg F y = -2.7x + 597.7 deg F
TDC 0x02 0x04 (inverted)
Power Steering 0x02 0x08 (inverted)
AC Switch 0x02 0x10 (inverted)
Park/Neutral 0x02 0x20 (inverted)
Idle Switch 0x02 0x80 (inverted)
AC Clutch 0x00 0x20 (inverted)
Byte from Byte to Description
$00 $3d Regular queries, return the value of the

variables showed in obdTable located below, see each variable definition... First value in table correspond to obd query code $00, increases by 1 for each table value

$3e $3f Converted to $3d, see that obd code
$40 $c9 Returns what is stored in that ram address
$ca $ca Erase all fault codes and returns $00 if

engine not rotating. If engine is rotating, all actuators/injector commands are reset and $ff is returned.

$cb $f0 Returns what is stored in that ram address
$f1 $fc Injector/actuators commands, returns $ff if successfull
Byte Description
$f1 Activate boost control solenoid
$f2 Unused in code
$f3 Activate egr solenoid
$f4 Activate fuel pressure solenoid
$f5 Activate purge solenoid
$f6 Turn on fuel pump
$f7 Disable injector #6 (inoperative in code)
$f8 Disable injector #5 (inoperative in code)
$f9 Disable injector #4
$fa Disable injector #3
$fb Disable injector #2
$fc Disable injector #1
Byte from Byte to Description
$f1 $ff Special queries
Byte Description
$fd Serial link test, returns $b5 (E931) or $b7 (E932)
$fe resistor strapping low word from t_strap3
$ff resistor strapping high word from t_strap3

Scantool

MUT

MUT-III

Downloads

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