Contents:

- DataLink Connector

- OBDII Pinout numbers

- 2007+ EvoX / RalliArt / Lancer, etc

- 1995-1997 DSM / 3000GT

- Mitsubishi GALANT

- Mitsubishi Trouble Codes Listing


Where to find the DataLink Connector

The 12pin male connector is only for reflashing/reprogramming the ecu, and is optional if you want to do datalogging.
The 16pin female OBDII connector is for datalogging and reflashing the ecu.




OBDII Mitsubishi pinout:

16 pin OBDII diagnostics connector



• Flashing Diagnostic AYC/ACD/EFI/ABS lights, yes it is normal - this is Mitsubishi Factory Diagnostics mode.
Disconnect pin1 to stop the flashing lights permanantly.  (pre 1998 ecus need flashing lights to even start EFI datalogging)
• Yes disconnecting pin9 on the EvoScan Cable with pliers is ecommended for Mitsubishi AYC/ACD usage (pin9 is only used for subaru reflashing)  (the reason for removing pin9 is because Mitsubishi ETACS and AYC/ACD ecus will not datalog until pin9 is removed from the 16pin end of the USB cable.)
• Diagnostic Flashing lights stop flashing when KPH/MPH > 0
• There is also option in the EvoScan Logging menu to "disable flashing lights" when datalogging.

MITSUBISHI OBDII PORT PINOUTS:
1 EFI/ABS/AYC/ACD  (not used for Evo7+ EFI Diagnostics)  join this pin to Ground (pin4 or 5) with a paper clip to get self diagnosis flashing lights on the dash to read the trouble codes by way of Long (+10s) and short (+1s) flashing lights.
<< Pin1 Very important for mitsubishi diagnostics, ensure this is connected to EFI ECU pin 56 (evo4-8).
2 J1850 (+) line   (not used on Mitsubishi)
3 Suspension - ECS
4 Ground (chassis negative)
5 Ground (chassis negative)
6 Transmission - ELC-4/5AT
7 EFI/ABS/AYC/ACD К-Line (ISO 9141)  
<< Pin7 Very important for diagnostics, ensure this is connected to EFI ECU pin 85(evo9) or pin 62(evo4-8).
8 ABS
9 ETACS: Pulse signal only    (pin9 not needed for Mitsubishi OpenPort)
10 J1850 (-) line  (not used on Mitsubishi)
11 Air Conditioner - Full Auto AC
12 Air Bag – SRS
13 Cruise Control – ASC
14 Rear Diff - AYC (or Vehicle speed signal)
15 L-line (ISO 9141)  (not used on Mitsubishi)
16 Power Supply (+12V)

Mitsubishi 2007+ Diagnostics (EvoX / RalliArt / Lancer, etc):
1
2
3
4 Ground (chassis negative)
5 Ground (chassis negative)
6 CAN Bus High << Important for Diagnostics and Reflashing connection (EFI ECU pin 90)
7 EFI << only used for recovery mode reflashing. no diagnostics on this pin since CAN Bus introduced. (EFI ECU pin 80)
8 Reflash EEPROM Init Voltage (EFI ECU pin 103) << connect OpenPort 2.0 (pin12) direct to EFI Eci pin 103 for recovery mode reflash.
9
10
11
12
13
14 CAN Bus Low << Important for Diagnostics and Reflashing connection (EFI ECU pin 91)
15
16 Power Supply (+12V)




2001+ Mitsubishi 12pin Secondary Diagnostics Connector

21 Traction Control – TCL/4WD
22 Steering - 4WS/ECPS
25 ECU
26 ECU reprogramming (EFI Reflashing)  << Very important for Reflashing, ensure this is connected to EFI ECU pin 100.
27 Transmission ECU programming
32 Adapter identification

Mitsubishi Reflash connector.. note the pin in position 26.

12 pin 1989-1993 Mitsubishi Connector

connect pin 10 to gnd (12) for diagnostics mode

PIN 1 EFI
PIN 2 Electronic Power Steering
PIN 3 Active Electronic Control Suspension Output (ECS)
PIN 4 ABS
PIN 5 Auto Cruise Control
PIN 6 AT Transmission (ELC-4 A/T Control Unit)
PIN 7 Full Auto A/C (AirCon control unit)
PIN 8 SRS AirBag
PIN 9 ETACS unit
PIN 10 Data (switching input)
PIN 11 Simulated Speed Input (Speed sensor)
PIN 12 Ground (negative)


Logging with Evoscan for 1995-1997 DSM / 3000GT

3000GT Support FORUM: http://www.3sgto.org/3000gt-stealth-gto-related-topics/7175-so-who-wants-their-ecus-chromed.html

1. The 1995/96 ECU's use a different address to log knock than the 1997+ ECU's, so you need to make sure that you set the address for "Knocksum" to 3E when logging a 1995 EPROM ECU. Otherwise you will just see a value that changes from 0 to 1.
Very simply, just Right-Click on the Knocksum line, click "Edit", then under "RequestID" change it to 3E, if not already. The correct address for 1997+ ECU's is 26.

2. Jeff at Keydiver doesn't like the formula EvoScan is using for the 4 fueltrim values. Its the same old formula everyone used for 1G fueltrims, which yielded the strange 81-140 values, which don't really tell you anything. Instead, change the old formula 0.78125*x to the new formula: (x/4)-32 for all 4 fueltrims, even though 2G's don't use the HIGH TRIM. This will make the values read true percentages of fuel being added or removed by the fueltrims.

3. For DSM, one of the items maybe incorrectly labeled the MDP Sensor as "EGR Temperature", way down the list. The 2G's don't use an EGRT temperature probe to check the EGR operation, they use the MDP Sensor, which reads in psia. So, Right-Click on the EGR Temperature line, change the formula to x*0.07353-0.0725, change the label to MDP Sensor, the LOGReference to MDPpsia, and the units to psia. This should make the value read correctly up to ~18.7 psia, which is about 4 psi.

4. Be sure you have selected "Hybrid DSM/3000GT/Eclipse" as the protocol.

5. If you are logging a 1995 or 1996 ECU, set the BAUD RATE to 10400. If you try anything faster, the ECU will randomly disconnect and attempt to reconnect
.
6. The 1995/96 protocol rides on top of the OBDII stuff, so it is VERY slow, only 7-9 samples per second. So, when logging you should only select 1-2 items at a time.

1992- 1995 Mitsubishi Galant / Lancer
All following info has been verified on my Mitsubishi Galant E33A (4G63 SOHC), but it should apply on other pre-OBDII ECUs as well. These apply to 12 pin datalogger EvoSCan USB Cables and also Evoscan 16pin USB Cables 1.3D/1.3R/1.3U
Use the Evoscan DataItem editor to modify requestID numbers as needed for your vehicle:

Mitsubishi Trouble Code Info

96 & later are OBD2 systems and require a scanner.

Accessing Diagnostic Trouble Codes

• Turn ignition switch to OFF position
• Locate Data Link Connector (DLC), next to fuse box.
• Connect voltmeter positive lead to DLC terminal #1 and Negative lead to terminal #12 (ground).
• Turn Ignition switch to ON position.
• codes are read out by 12 volt pulses of voltmeter.
• A constant repetition of short pulses is normal.
• Signals will appear on voltmeter a long and short 12 volt pulses.
• long pulses represent tens
• short pulses represent ones (4 long pulses and 3 short pulses indicates code 43)

1994+ Mitsubishi Diagnostic Trouble Code Retrieval Without Scan Tool
Connect pin 1 (terminal 1) to ground (ground is pin 4 and/or pin 5) you can use a paper clip. and then count the flashes on the check engine light on the dashboard.

1. Ground Data Link Connector terminal # 1.  pin4 and pin5 are ground. (so you can connect pin 1 and pin 4 with a paperclip or short wire)
   
   
2. Set the ignition switch to "ON", the Malfunction Indicator (check engine) Lamp will illuminate for a particular duration and a certain number of times.
3. Clear the trouble codes by disconnecting the vehicle battery negative terminal for 16 seconds or longer.

EXAMPLES

No Codes--normal

• The Lamp will illuminate for 0.5 seconds, then stay Off for 0.5 seconds, this pattern will repeat until the ignition is turned OFF.

Code 13

• The Lamp will illuminate one time for approximately 0.5 second. This will represent one unit of ten. There will be approximately a one second delay and then the Lamp will illuminate three times for approximately 0.2 seconds with 0.2 second delay between deflections. This will represent three units of one.

Code 23

• The Lamp will illuminate two times for approximately 0.5 second with approximately 0.3 second delay between deflections. This will represent two units of ten. There will be approximately a one second delay and then the Lamp will illuminate three times for approximately 0.2 seconds with 0.2 second delay between deflections. This will represent three units of one..

Clearing Trouble Codes

Diagnostic trouble codes may be cleared by disconnecting the battery ground cable for at least 20 seconds. Reconnect negative battery cable and recheck codes to confirm the repair.

Diagnostic Codes

Mitsubishi