Mitsubishi OBD / OBD2 Codes

Table of Contents

NOTE: 96 & later are OBD2 systems and require a scanner. For an OBD2 code list, please see our generic Mitsubishi code list.

Mitsubishi: 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)

94-95 Mitsubishi Diamante Retrieval Without Scan Tool

  1. Other 95 models require a diagnostic trouble code check harness (part # MB991529) to ground terminal
  2. Ground Data Link Connector terminal # 1.
  3. Set the ignition switch to “ON”, the Malfunction Indicator (check engine) Lamp will illuminate for a particular duration and a certain number of times.
  4. Clear the trouble codes by disconnecting the vehicle battery negative terminal for 16 seconds or longer


  • 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.

Mitsubishi OBD1 Codes

Without OBD-II
11Oxygen sensor fault.
12Airflow sensor fault.
13Intake air temp sensor fault.
14Throttle position sensor (TPS) fault.
15Idle speed control (ISC) motor position sensor fault.
21Coolant temp sensor fault.
22Crankshaft position (CKP) sesnor fault.
23Camshaft position (CMP) sensor fault.
24Vehicle speed sensor (VSS) fault.
25Barometric (BARO) pressure sensor fault.
31Knock sensor fault.
32MAP sensor faulty.
36Ignition timing adjustment signal fault.
39Oxygen (O2) sensor fault.
41Injector(s) fault
42Fuel pump fault.
43EGR fault.
44Ignition coil (cylinders #1 & #4) fault.
52Ignition coil (cylinders #2 & #5) fault.
53Ignition coil (cylinders #3 & #6) fault.
55Idle air control (IAC) valve position sensor fault.
59Rear Oxygen (O2) sesnor fault.
61Transaxle control module torque reduction signal fault.
62Variable Induction control (VIC) valve position sensor fault.
71Traction control (TC) vacuum valve solenoid fault.
72Traction Control (TC) vent valve solenoid fault.
ECI Voltmeter or Test Light
1Oxygen Sensor.
2Ignition Signal.
3Air Flow Sensor.
4Pressure Sensor.
5Throttle Position Sensor.
6Idle Speed Control Motor Position Switch.
7Engine Coolant Temperature Sensor.
MPFI 86-88 4 Cyl. Voltmeter or Test Light
10000Oxygen Sensor.
01000Crank Angle Sensor.
11000Air Flow Sensor.
00100Atmospheric Pressure Sensor.
10100Throttle Position Sensor.
01100Motor Position Sensor.
11100Engine Coolant Temperature Sensor.
00010No. 1 Cylinder TDC Sensor.
MPFI V6 and 89-95 4 Cyl. (Exc. 95 Eclipse) Voltmeter or Test Light
11Oxygen Sensor.
12Air Flow Sensor.
13Intake Air Temperature Sensor.
14Throttle Position Sensor.
15Motor Position Sensor.
21Engine Coolant Temperature Sensor.
22Crank Angle Sensor.
23TDC/CMP Sensor.
24Vehicle Speed Sensor.
26BARO Sensor.
31Knock Sensor.
32Manifold Absolute Pressure Sensor.
36Ignition Timing Adjustment Signal.
39Oxygen Sensor.
42Fuel Pump.
44Ignition Coil, 4 Cylinder.
44Ignition Coil Power Transistor Unit, V6 Cylinders 1 & 4.
52Ignition Coil Power Transistor Unit, V6 Cylinders 2 & 5.
53Ignition Coil Power Transistor Unit, V6 Cylinders 3 & 6.
55Idle Air Control Valve/Servo Valve Position Sensor.
59Oxygen Sensor (Rear), 4 Cylinder.
59Left hand Bank Heated Oxygen Sensor, V6.
61Cable from Transaxle Control Unit, For Transmission
61Torque Reduction Signal (A/T).
62Induction Control Valve Position Sensor (Non Turbo).
69Right hand Bank Heated Oxygen Sensor.
71Traction Control Vacuum Solenoid.
72Traction Control Ventilation Solenoid.

95-98 Eclipse (Non-Turbo) Retrieval Without Scan Tool

  1. Cycle the ignition key On-Off-On-Off-On within 5 seconds.
  2. Count the number of times the malfunction indicator lamp (check engine lamp) on the instrument panel flashes on and off.
  3. The number of flashes represents the trouble code.
  4. There is a slight pause between the flashes representing the first and second digits of the code.
  5. Longer pauses (approx. 4 seconds) separate individual trouble codes.
  6. Repair the malfunction while referring to the inspection chart below for diagnostic trouble codes.
  7. After disconnecting the battery cable from the battery (-) terminal for 10 seconds or more, reconnect the cable.
  8. Start the engine and run it at idle for about 15 minutes after the engine has warmed up.
MPFI 95-98 Eclipse (Non-Turbo) Check Engine/Light Scan Tool
11Intermittent Loss Of Crankshaft Position Sensor.
11Misfire Adaptive Numerator at Limit.
11No Crankshaft Reference Signal at PCM.
11Timing Belt Skipped 1 Tooth or More.
13No Change In Manifold Absolute Pressure (MAP) From Start To Run.
145-Volt Supply Output Too Low.
14Manifold Absolute Pressure (MAP) Sensor Voltage Too High.
14Manifold Absolute Pressure (MAP) Sensor Voltage Too Low.
14No 5 Volts To Manifold Absolute Pressure (MAP) Sensor.
15No Vehicle Speed Sensor Signal.
16Knock Sensor No. 1 Circuit.
17Closed Loop Temperature Not Reached.
17Engine Is Cold Too Long.
21Downstream Heated Oxygen Sensor Heater Failure.
21Downstream Heated Oxygen Sensor Shorted To Voltage.
21Downstream Heated Oxygen Sensor Stays at Center.
21Downstream Heated Oxygen Sensor Stays at Center.
21Downstream Heated Oxygen Sensor Voltage Grounded.
21Slow Upstream Heated Oxygen Sensor Circuit during Catalyst Monitor.
21Upstream Heated Oxygen Sensor Heater Failure.
21Upstream Heated Oxygen Sensor Response.
21Upstream Heated Oxygen Sensor Shorted To B+.
21Upstream Heated Oxygen Sensor Stays at Center.
21Upstream Heated Oxygen Sensor Voltage Grounded.
22Engine Coolant Temperature Sensor Voltage High.
22Engine Coolant Temperature Sensor Voltage Low.
23Intake Air Temperature Sensor Voltage High.
23Intake Air Temperature Sensor Voltage Low.
24No 5 Volts To Throttle Position Sensor.
24Throttle Position Sensor Voltage Disagrees With Manifold Absolute Pressure.
24Throttle Position Sensor Voltage High.
24Throttle Position Sensor Voltage Low.
25Idle Air Control Motor Circuits.
25Target Idle Not Reached (plus or minus 200 RPM).
27Injector No. 1 Control Circuit.
27Injector No. 2 Control Circuit.
27Injector No. 3 Control Circuit.
27Injector No. 4 Control Circuit.
31EVAP Leak Monitor Pinched Hose found.
31EVAP Purge Flow Monitor Failure.
31EVAP Solenoid Circuit.
31EVAP Solenoid Switch or Mechanical Fault.
31EVAP System Large Leak.
31EVAP System Small Leak.
31EVAP Vent Solenoid Circuit.
31Engine Coolant Temp sensor voltage too high.
32EGR Solenoid Circuit.
32EGR System Failure.
33A/C Clutch Relay Circuit.
35High Speed Fan Control Relay Circuit.
35High Speed Radiator Fan Relay Circuit.
35Low Speed Fan Control Relay Circuit.
36PAIR Solenoid Circuit – M/T.
36Too Little or Too Much Secondary Air.
37Park/Neutral Position Switch Failure.
41Alternator Field Not Switching Properly.
42Fuel Level Sensing Unit Voltage Too High.
42Fuel Level Sensing Unit Voltage Too Low.
42Fuel Level Unit No Change Over Miles.
42Fuel Pump Relay Control Circuit.
42MFI (ASID) Relay Control Circuit.
42No MFI (ASD) Relay Output Voltage at PCM.
43Cylinder No. 1 Misfire.
43Cylinder No. 2 Misfire.
43Cylinder No. 3 Misfire.
43Cylinder No. 4 Misfire.
43Ignition Coil No. 1 Primary Circuit.
43Ignition Coil No. 2 Primary Circuit.
43Multiple Cylinder Misfire.
44Battery Temperature Sensor Voltage Too High.
44Battery Temperature Sensor Voltage Too Low.
44Battery Temperature Voltage out of limit.
45EATX Controller Trouble Code Present.
46Charging System Voltage Too High.
47Charging System Voltage Too Low.
51Fuel System Lean.
52Fuel System Rich.
53Internal Controller Failure.
53PCM Failure – Serial Peripheral Interface Communications.
54No Cam Signal at PCM.
61BARO Pressure Out Of Range.
62PCM Failure – Service Reminder Indicator Mile Not Stored.
63PCM Failure – EEPROM Write Denied.
64Catalytic Converter Efficiency Failure.
65Power Steering Pressure Switch Failure.
66No CCD Messages From TCM – A/T.

Common Mitsubishi OBD2 Codes (Full list here)

95 Eclipse (Turbo) 96-98 Vehicles OBD2
P0100Volume Air Flow circuit.
P0105BARO Pressure circuit.
P0110Intake Air Temperature circuit.
P0115Engine Coolant Temperature circuit.
P0120Throttle Position circuit.
P0125Excessive Time to Enter Closed Loop Fuel Control.
P0130Heated Oxygen Sensor circuit Bank 1 Sensor 1.
P0135Heated Oxygen Sensor Heater circuit Bank 1 Sensor 1.
P0136Heated Oxygen Sensor circuit Bank 1 Sensor.
P0141Heated Oxygen Sensor Heater circuit Bank 1 Sensor 2.
P0150Heated Oxygen Sensor circuit Bank 2 Sensor 1.
P0155Heated Oxygen Sensor Heater circuit Bank 2 Sensor 1.
P0156Heated Oxygen Sensor circuit Bank 2 Sensor 2.
P0161Heated Oxygen Sensor Heater circuit Bank 2 Sensor 2.
P0170Fuel Trim Bank 1.
P0173Fuel Trim Bank 2.
P0201Injector circuit – Cylinder 1.
P0202Injector circuit – Cylinder 2.
P0203Injector circuit – Cylinder 3.
P0204Injector circuit – Cylinder 4.
P0205Injector circuit – Cylinder 5.
P0206Injector circuit – Cylinder 6.
P0300Random Misfire Detected.
P0301Misfire Detected – Cylinder 1.
P0302Misfire Detected – Cylinder 2.
P0303Misfire Detected – Cylinder 3.
P0304Misfire Detected – Cylinder 4.
P0305Misfire Detected – Cylinder 5.
P0306Misfire Detected – Cylinder 6.
P0325Knock Sensor 1 circuit.
P0335Crankshaft Position Sensor circuit.
P0340Crankshaft Position Sensor circuit.
P0400EGR Flow.
P0403EGR Solenoid.
P0420Catalytic Efficiency below threshold (Bank 1).
P0421Warm-Up Catalyst Efficiency below threshold (Bank 1).
P0431Warm-Up Catalyst Efficiency below threshold (Bank 2).
P0440EVAP System.
P0442EVAP System Leak Detected.
P0443EVAP System Purge Control Valve circuit.
P0446EVAP System Vent Control.
P0450EVAP System Pressure Sensor.
P0455EVAP Control System Leak Detected.
P0500Vehicle Speed Sensor.
P0505Idle Control System.
P0510Closed Throttle Position Switch.
P0551Power Steering Pressure Sensor circuit Range/Performance.
P0700Transaxle Control System.
P0705Transmission Range Sensor circuit (PRNDL – Input).
P0710Transmission Fluid Temperature Sensor circuit.
P0715Input/Turbine Speed Sensor circuit.
P0720Output Speed Sensor circuit.
P0725Engine Speed Input circuit.
P0740Torque Converter Clutch System.
P0750Shift Solenoid “A”.
P0755Shift Solenoid “B”.
P0760Shift Solenoid “C”.
P0765Shift Solenoid “D”.
P1103Turbocharger Wastegate Actuator.
P1104Turbocharger Wastegate Solenoid.
P1105Fuel Pressure Solenoid.
P1300Ignition Timing Adjustment circuit.
P1400Manifold Differential Pressure Sensor circuit.
P1500Alternator FR Terminal circuit.
P1600Serial Communication Link.
P1715Pulse Generator Assembly.
P1750Solenoid Assembly.
P1751A/T Control Relay.
P1791Engine Coolant Temperature Level Input circuit.
P1795Throttle Position Input circuit to TCM.

Mitsubishi Diagnostic Trouble Codes by Model

ModelYearEngine identificationSystem
3000GT1994-956G72 DOHCMitsubishi MPI
3000GT1996-996G72Mitsubishi MPI
3000GT Turbo1994-956G72 DOHCMitsubishi MPI
3000GT Turbo1996-996G72Mitsubishi MPI
Diamante 3.0L1994-956G72Mitsubishi MPI
Diamante 3.0L19966G72Mitsubishi MPI
Diamante 3.5L1997-046G74Mitsubishi MPI
Eclipse 2.0L1995-99420AMitsubishi MPI
Eclipse 2.0L Turbo1995-994G63Mitsubishi MPI
Eclipse 2.4L1996-094G64/4G69Mitsubishi MPI
Eclipse 3.0L2000-056G72Mitsubishi MPI
Eclipse 3.8L2006-096G75Mitsubishi MPI
Endeavor 3.8L2004-086G75Mitsubishi MPI
Expo 2.4L 4X4 – California19964G64Mitsubishi MPI
Expo LRV 1.8L – California1995-964G93Mitsubishi MPI
Expo LRV 1.8L – Federal19964G93Mitsubishi MPI
Expo/LRV 2.4L FWD – California1995-964G64Mitsubishi MPI ·
Expo/LRV 2.4L – Federal19964G64Mitsubishi MPI
Galant 2.4L1994-954G64Mitsubishi MPI
Galant 2.4L1996-094G64Mitsubishi MPI
Galant 3.0L1999-036G72Mitsubishi MPI
Galant 3.8L2004-096G75Mitsubishi MPI
Lancer 2.0L2002-074G94Mitsubishi MPI
Lancer 2.0L2008-094811Mitsubishi MPI
Lancer Evolution 2.0L2003-074G63Mitsubishi MPI
Lancer Evolution 2.4L2008-094812Mitsubishi MPI
Lancer Sportback 2.4L2002-064G69Mitsubishi MPI
Mighty Max Pickup 2.4L1990-954G64Mitsubishi MPI
Mighty Max Pickup 2.4L19964G64Mitsubishi MPI
Mighty Max Pickup 3.0L1990-966G72Mitsubishi MPI
Mirage 1.5/1.8L1995-024G15/4G93Mitsubishi MPI
Mirage 1.8L- California19944G93Mitsubishi MPI
Mirage 1.8L – Federal1994-954G93Mitsubishi MPI
Montero 3.0L1989-936G72Mitsubishi MPI
Montero 3.0L1994-956G72Mitsubishi MPI
Montero 3.0L1996-066G72Mitsubishi MPI
Montero 3.5L1996-066G74Mitsubishi MPI
Montero 3.8L2004-066G75Mitsubishi MPI
Montero Sport 2.4L1997-994G64Mitsubishi MPI
Montero Sport 3.0L1996-036G72Mitsubishi MPI
Montero Sport 3.5L1996-046G74Mitsubishi MPI
Outlander 2.4/3.0L2003-084G64/4G69/6831Mitsubishi MPI
Raider 3.7/4.7L2006-08EKG/EGAChrysler MFI
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Patrick Shea
Patrick Shea
4 months ago

97′ Pajero Evolution throwing Code 12 (Air Flow Sensor) on the ABS Light using the grounded pin method. Other than faulty sensor can anything else cause this? What sensor/part number if anyone knows?

Patrick Shea
Patrick Shea
6 months ago

My 1997 Mitsubishi Pajero Evolution is throwing Code 24 which indicates Speed Sensor. My Odometer and Speedometer are intermittently working as a result.
I have already replaced the Input & Output Speed Sensors on the Transmission and it did not fix this issue. Could the Transfer Case Speed sensor be causing this? What else could be causing this issue if not the 3rd Speed Sensor?

5 months ago
Reply to  Patrick Shea

It appears that the third speed sensor is the next one in line for replacement.
The only other possibilities are intermittent wiring to the sensors or an intermittent shaft tone wheel breaking.
Try that third speed sensor first, as this is the least expensive and quickest option.
Hope this all works out for out for you.

Patrick Shea
Patrick Shea
6 months ago

1997 Mitsubishi Pajero Evolution:
When using the grounded wire/pin trick, the Neutral is flashing a Code 26. Cannot find reference for this anywhere.
Check Engine is flashing steadily, no pauses. Also do not know what this means?

6 months ago
Reply to  Patrick Shea

Code 26 indicates that the voltage from the center differential lock detection switch isn’t what it expects. First – does the center differential lock work, and does the orange light on the dash that indicates it is locked, changing, or unlocked work properly? Also the other 4WD indicator lights on the dashboard? If not then you need to sort that out first, as the ABS system can only act on what the 4WD system is saying.
If so, the most likely reason is a dirty connector or broken wire between the 4WD control unit (located under the radio) and the ABS control unit (located above the driver’s side rear wheel arch).
On a side note, you may wish to make a small donation to A $9.99 donation can provide more information in the future.
Thank you for your consideration and good luck on locating the problem.

Patrick Shea
Patrick Shea
6 months ago
Reply to  Randy

I got it fixed it was a result of LED bulbs not having resistors.

Pulasthi kumara
Pulasthi kumara
6 months ago

36 fault code
Ignition Timming adjestment signal fault how fix this? Please help me

Patrick Shea
Patrick Shea
7 months ago

I have a 1997 Mitsubishi Pajero Evolution. The Check Engine looks to be code 42, while the ABS & Neutral blink quickly & consistently without any pause ever.
Please help! At random times when coming to a complete stop my A/T & Battery light will illuminate and the vehicle will go out of gear (seemingly into neutral). I have to put it into park, turn the vehicle off & back on and it works as if nothing happened.

7 months ago
Reply to  Patrick Shea

This is for the shift solenoid #1 low resistance / shorted.
You will need to check the shift solenoid resistance. If too low, it will need to be replaced.
You may need to contact a qualifies transmission repair facility of a local Mitsubishi dealer for repair assistance.
I hope all goes well with these repairs.

Steve Granato
Steve Granato
1 year ago

What about
1993 Mitsubishi Bravo DOHC Turbo van 3G83 engine auto trans?
How check for code?

1 year ago

Hi I have mitsubishi l200 sportero with a error code u1101 and l don’t know where the location is at.

1 year ago
Reply to  Kitt

Kitt, please reply with full information (year, make, model, engine) and exactly what are you trying to locate.
Thank you

Marcion Majczak
Marcion Majczak
1 year ago

Hi, guys,
I have a Montero 3.5 DOHC 1994. What scanner can read the ECU of this model? I´m struggling with the ABS light on, and I don’t know if the problem is on one of the ABS sensors or the ABS central.

I will be grateful for any help


Joy Arruda
Joy Arruda
2 years ago

These are all the codes obd2 read after my car died out on highway,then would’nt start. I had it towed home and scanned it with obd2 reader.
It will start,but it dies out if you press on gas,or leave it running a few minutes,then it was crank no start.Any idea what it could be?
18.04.22 08:10:55 PM
Profile: Mitsubishi OBD

P0300 Current
Random/Multiple Cylinder Misfire Detected

P0171 Current
System Too Lean (Bank 1)

P0134 Current
O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)

P0132 Current
O2 Sensor Circuit High Voltage (Bank 1 Sensor 1)

P0135 Current
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

P0340 Current
Camshaft Position Sensor Circuit Malfunction

P0335 Current
Crankshaft Position Sensor A Circuit Malfunction

P0340 Pending
Camshaft Position Sensor Circuit Malfunction

P0335 Pending
Crankshaft Position Sensor A Circuit Malfunction

P0300 Pending
Random/Multiple Cylinder Misfire Detected

P0171 Pending
System Too Lean (Bank 1)

P0132 Pending
O2 Sensor Circuit High Voltage (Bank 1 Sensor 1)

P0135 Pending
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

Description not found
Click to search the Internet

Description not found
Click to search the Internet

2 years ago

My lancer computer scan shows FM1 fault…what its mean?

2 years ago

Which fault îs this P1D37 powertrain at Mitsubishi outlander phev 2014.
Thank you.

2 years ago

I have a mitsubishi I 2009 model car, Its showing a code P1246, engine starts but as i try to accelerate engine stops. Is it ECU problem or any other sensor?

2 years ago

I have a 2004 mitsubishi lancer, It is stuck in limp mode, put new auto gearbox in, still in limp mode, auto shop fixed to errors that came up, but still in limp mode, is it time to check computer and reset it, and do i need codes to do this…

Juan R. Camacho
Juan R. Camacho
3 years ago

I have a P1773 Code on my 2008 Outlander 3.0l and I don’t have a clue of what do I have to check in order to resolve the problem. HELP!

Fran Anastasio
3 years ago

2001 montero limited p0400 code what’s wrong
Abs solid light not flash code. Scanner shows no codes.