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1994+ Mitsubishi Diagnostic Trouble Code Retrieval Without Scan Tool
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 (or use another ground point if preferred).
Set the ignition switch to "ON", the Malfunction Indicator (check engine) Lamp will illuminate for a particular duration and a certain number of times.
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 - Gasoline Engines
Without OBD-II
11 Oxygen sensor fault.
12 Airflow sensor fault.
13 Intake air temp sensor fault.
14 Throttle position sensor (TPS) fault.
15 Idle speed control (ISC) motor position sensor fault.
21 Coolant temp sensor fault.
22 Crankshaft position (CKP) sensor fault.
23 Camshaft position (CMP) sensor fault.
24 Vehicle speed sensor (VSS) fault.
25 Barometric (BARO) pressure sensor fault.
31 Knock sensor fault.
32 MAP sensor faulty.
36 Ignition timing adjustment signal fault.
39 Oxygen (O2) sensor fault.
41 Injector(s) fault
42 Fuel pump fault.
43 EGR fault.
44 Ignition coil (cylinders #1 & #4) fault.
52 Ignition coil (cylinders #2 & #5) fault.
53 Ignition coil (cylinders #3 & #6) fault.
55 Idle air control (IAC) valve position sensor fault.
59 Rear Oxygen (O2) sensor fault.
61 Transaxle control module torque reduction signal fault.
62 Variable Induction control (VIC) valve position sensor fault.
71 Traction control (TC) vacuum valve solenoid fault.
72 Traction Control (TC) vent valve solenoid fault.
Source: http://www.evoscan.com/technical-vehicle-manuals/12-mitsubishi-diagnostics
Diagnostic Codes
Mitsubishi L400 4M40T from 01.06.1997 (electrically controlled injection pump)
Engine Data Trouble Codes.
11. Accelerator Position Sensor.
12. Boost pressure sensor.
13. Atmospheric pressure sensor (Inbuilt within ECU).
14. Fuel temperature sensor.
15. Coolant temperature sensor.
16. Boost air temperature sensor (Inlet manifold air temperature sensor).
17. Vehicle speed sensor.
18. Engine rotation sensor (Pump rotation sensor).
21. Engine rotation sensor (Crank angle sensor).
23. Idle switch No 1 (Mounted on the body at the firewall).
24. Idle switch No 2 (Inbuilt within the Accelerator Position Sensor).
25. Timer piston position sensor. (Within the fuel pump)
26. Control sleeve position sensor. (Within the fuel pump)
41. Throttle solenoid valve. (In the Inlet air path).
43. Timing Control Fuel Pump system.
46. Injection quantity correction resistance. Correction signal open or short circuit.
48. GE Actuator control sleeve position sensor (middle breakdown system).
49. Over Boost. Boost pressure over 155 kPa / 1158 mmHg
--. Engine ECU. Engine ECU defective.
Sources:
http://www.delicaclub.com/viewtopic.php?p=307653#p307653
http://www.delicaclub.com/viewtopic.php?p=203792#p203792
http://www.delicaclub.com/viewtopic.php?p=371896#p371896
1994+ Mitsubishi Diagnostic Trouble Code Retrieval Without Scan Tool
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 (or use another ground point if preferred).
Set the ignition switch to "ON", the Malfunction Indicator (check engine) Lamp will illuminate for a particular duration and a certain number of times.
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 - Gasoline Engines
Without OBD-II
11 Oxygen sensor fault.
12 Airflow sensor fault.
13 Intake air temp sensor fault.
14 Throttle position sensor (TPS) fault.
15 Idle speed control (ISC) motor position sensor fault.
21 Coolant temp sensor fault.
22 Crankshaft position (CKP) sensor fault.
23 Camshaft position (CMP) sensor fault.
24 Vehicle speed sensor (VSS) fault.
25 Barometric (BARO) pressure sensor fault.
31 Knock sensor fault.
32 MAP sensor faulty.
36 Ignition timing adjustment signal fault.
39 Oxygen (O2) sensor fault.
41 Injector(s) fault
42 Fuel pump fault.
43 EGR fault.
44 Ignition coil (cylinders #1 & #4) fault.
52 Ignition coil (cylinders #2 & #5) fault.
53 Ignition coil (cylinders #3 & #6) fault.
55 Idle air control (IAC) valve position sensor fault.
59 Rear Oxygen (O2) sensor fault.
61 Transaxle control module torque reduction signal fault.
62 Variable Induction control (VIC) valve position sensor fault.
71 Traction control (TC) vacuum valve solenoid fault.
72 Traction Control (TC) vent valve solenoid fault.
Source: http://www.evoscan.com/technical-vehicle-manuals/12-mitsubishi-diagnostics
Diagnostic Codes
Mitsubishi L400 4M40T from 01.06.1997 (electrically controlled injection pump)
Engine Data Trouble Codes.
11. Accelerator Position Sensor.
12. Boost pressure sensor.
13. Atmospheric pressure sensor (Inbuilt within ECU).
14. Fuel temperature sensor.
15. Coolant temperature sensor.
16. Boost air temperature sensor (Inlet manifold air temperature sensor).
17. Vehicle speed sensor.
18. Engine rotation sensor (Pump rotation sensor).
21. Engine rotation sensor (Crank angle sensor).
23. Idle switch No 1 (Mounted on the body at the firewall).
24. Idle switch No 2 (Inbuilt within the Accelerator Position Sensor).
25. Timer piston position sensor. (Within the fuel pump)
26. Control sleeve position sensor. (Within the fuel pump)
41. Throttle solenoid valve. (In the Inlet air path).
43. Timing Control Fuel Pump system.
46. Injection quantity correction resistance. Correction signal open or short circuit.
48. GE Actuator control sleeve position sensor (middle breakdown system).
49. Over Boost. Boost pressure over 155 kPa / 1158 mmHg
--. Engine ECU. Engine ECU defective.
Sources:
http://www.delicaclub.com/viewtopic.php?p=307653#p307653
http://www.delicaclub.com/viewtopic.php?p=203792#p203792
http://www.delicaclub.com/viewtopic.php?p=371896#p371896