mitsubishi fault code list

In the realm of automotive diagnostics, understanding and deciphering fault codes is paramount. Among the multitude of car brands, Mitsubishi stands out as a reliable and popular choice. To keep your Mitsubishi running smoothly, it’s essential to decode its fault codes accurately. This article serves as your comprehensive guide to the Mitsubishi fault code list. Buckle up as we embark on this journey of automotive enlightenment.

Now, let’s dive into each section of this article to unravel the secrets of Mitsubishi’s fault codes.


Mitsubishi vehicles are renowned for their durability and reliability. However, like any mechanical system, they can encounter issues from time to time. This is where understanding Mitsubishi fault codes becomes invaluable.

*Please press the following to search through the Mitsubishi fault code list: CTRL+ F

Mitsubishi Fault Code List
Trouble Code Fault Location Probable Cause
P0171 Fuel trim (FT) system too lean, bank 1 Intake/exhaust leak, AIR system, MAFNAF sensor, fuel pressure/pump, injector(s), HO2S
P0300 Random/multiple cylinder(s) -misfire detected Spark plug(s), HT lead(s), injector(s), ignition coil(s), low compression, wiring
P0301 Cylinder 1 misfire detected Engine mechanical fault, wiring, ignition/fuel system, injector, ECT/MAF sensor, ECM
P0340 Camshaft position (CMP) sensor A, bank 1 circuit malfunction Wiring, CMP sensor, ECM
P0420 Catalytic converter system, bank 1 -efficiency below threshold Catalytic converter, wiring, HO2S 2
P0421 Warm Up Catalytic Converter Bank 1 Efficiency Below Threshold Fuel, Catalytic Converter
P1000 – P1099 (Fuel and air metering and auxiliary emission control)
P1020 MIVEC Performance Problem Bank 1
P1021 Engine Oil Control Valve Circuit Bank 1
P1022 Variable valve timing control, bank 2 – performance problem Wiring, engine oil pressure switch, valve timing control valve, actuator, ECM
P1023 Valve timing control valve, bank 2 – circuit malfunction Wiring, valve timing control valve, ECM
P1025 Valve timing control valve, exhaust – circuit malfunction Wiring, connections, valve timing control valve, ECM
P1100 – P1199 (Fuel and air metering)
P1100 Intake manifold air control actuator position sensor – circuit malfunction Wiring, position sensor, actuator, ECM
P1101 Traction control vacuum solenoid – circuit malfunction Wiring, vacuum solenoid, ECM
P1102 Traction control vent solenoid -circuit malfunction Wiring, vent solenoid, ECM
P1103 Turbocharger (TC) wastegate actuator- malfunction Wiring, VAF sensor, ECM
P1104 Turbocharger (TC) wastegate regulating valve – malfunction Wiring, TC wastegate regulating valve, ECM
P1105 Fuel pressure regulator control solenoid – malfunction Wiring, pressure regulator control solenoid, ECM
P1115 Engine coolant temperature (ECT) sensor/intake air temperature (IAT) sensor/outside air temperature sensor – signal variation Wiring, ECT sensor, IAT sensor, outside air temperature sensor, ECM
P1128 Closed Loop Fueling Not Achieved Bank 1
P1129 Closed Loop Fueling Not Achieved Bank 2
P1200 – P1299 (Fuel and air metering – injector circuit)
P1231 Automatic stability control – implausible signal Wiring, automatic stability control system fault, ECM
P1232 Throttle control fail safe mode – malfunction Wiring, ECM
P1233 Throttle position (TP) sensor A – malfunction Wiring, throttle position sensor (TPS), intake   leak, ECM
P1234 Throttle position (TP) sensor B – malfunction Wiring, throttle position sensor (TPS), intake leak, ECM
P1235 Mass air flow (MAF) sensor – malfunction Wiring, mass air flow (MAF) sensor, ECM
P1236 Accelerator pedal position (APP) sensor B – malfunction Wiring, ECM
P1237 Accelerator pedal position (APP) sensor – malfunction Wiring, accelerator pedal position (APP)   sensor, ECM
P1238 Mass air flow (MAF) sensor – malfunction Wiring, mass air flow (MAF) sensor, ECM
P1239 Crankshaft position (CKP) sensor – range/performance problem Wiring, crankshaft position (CKP) sensor, ECM
P1240 Ignition timing error ECM
P1241 Torque management system – range/performance problem Wiring, throttle actuator control (TAC), intake leak, ECM
P1242 Engine RPM input – range/performance problem Wiring, ECM
P1243 Engine control module (ECM) – processor fault ECM
P1244 Engine control module (ECM) – RAM error ECM
P1245 Engine control module (ECM) – RAM error ECM
P1246 Engine control module (ECM) – processor fault ECM
P1247 A/T Plausibility
P1248 AWD Plausibility
P1294 Idle Air Control Motor Circuit
P1295 No 5 Volts To Throttle Position Sensor
P1296 No 5 Volts to MAP Sensor
P1297 No Change In MAP From Start To Run
P1300 – P1399 (Ignition system or misfire)
P1300 Ignition timing adjustment – circuit malfunction Wiring short to ground, ECM
P1303 Misfiring Cylinder 3
P1320 Ignition timing – cold start emission control Coolant thermostat, ECM
P1390 Timing Belt Skipped 1 Tooth Or More
P1391 Intermittent Loose Of Camshaft Position Or Crankshaft Position Sensor
P1400 – P1499 (Emission control)
P1400 Manifold absolute pressure (MAP) sensor- circuit malfunction Wiring, MAP sensor, ECM
P1404 EGR Position Sensor Rationality Closed
P1421 Clogged Or Dirty Catalyst
P1422 Temperature Sensor Has Failed
P1443 Evaporative emission (EVAP) canister purge system – control valve 2 circuit malfunction Wiring, EVAP solenoid 2, ECM
P1486 EVAP Leak Monitor Pinched Hose Found
P1487 High Speed Radiator Fan Control Relay Condition
P1489 High Speed Radiator Fan Control Relay Condition
P1490 Low Speed Radiator Fan Control Relay Condition
P1492 Battery Temperature Sensor Voltage Too high
P1493 Battery Temperature Sensor Signal Too Low Condition
P1494 EVAP Ventilation Switch Or Mechanical Fault
P1495 EVAP Ventilation Solenoid Circuit
P1496 5 Volt Supply Output Too Low
P1500 – P1599 (Vehicle or idle speed control)
P1500 Generator system – circuit malfunction Wiring, generator system, ECM
P1501 Vehicle Speed Sensor 1/2 Correlation Drive Wheels
P1502 Vehicle Speed Sensor 1/2 Correlation Non Drive Wheels
P1506 Idle air control (lAC) valve – RPM lower than expected Wiring, intake system blocked, MAP sensor, lAC valve, fuel pressure, ECM
P1507 Idle air control (lAC) valve – RPM higher than expected Wiring, intake air leak, throttle valve sticking, MAP sensor, ECM
P1530 A/C control module – circuit malfunction Wiring, AIC control module
P1540 Radiator sensor – signal malfunction Wiring, radiator, ECM
P1541 Radiator sensor – signal malfunction Wiring, radiator, ECM
P1543 Radiator outlet engine temperature (ECT) – low input Wiring, engine coolant radiator, coolant thermostat, engine coolant pump, ECT sensor, ECM
P1544 Radiator outlet engine temperature (ECT) – high input Wiring, engine coolant radiator, coolant thermostat, engine coolant pump, ECT sensor, ECM
P1545 Radiator outlet engine temperature (ECT) – signal variation Wiring, engine coolant radiator, ECT sensor, ECM
P1546 Radiator outlet engine temperature (ECT) – signal variation Wiring, engine coolant radiator, ECT sensor, ECM
P1547 Radiator outlet engine temperature (ECT) – signal variation Wiring, engine coolant radiator, ECT sensor, ECM
P1564 Cruise control master switch – malfunction Wiring, cruise control master switch, ECM
P1571 Cruise control brake pedal switch – malfunction Wiring, cruise control brake pedal switch, ECM
P1572 Brake Pedal Switch Circuit Malfunction
P1573 Brake Switch Stuck Off
P1574 Engine control module (ECM) – malfunction Trouble codes stored, ECM
P1580 Radiator outlet engine temperature (ECT) – communication malfunction Wiring, ECT sensor, ECM
P1593 Cruise control system, multi-function input A – circuit stuck Wiring, poor connection, multi-function switch, mechanical fault, ECM
P1600 – P1699 (ECM – computer output circuit)
P1600 AT to ECM – signal failure Wiring, TCM, ECM
P1601 ECM to throttle control unit – communication malfunction ECM
P1602 ECM to system LSI – communication malfunction ECM
P1603 Engine control module (ECM) – battery supply voltage Wiring, ECM
P1603 3 Engine control module (ECM) – battery supply voltage Wiring, ECM
P1603 4 Engine control module (ECM) – RAM link error ECM
P1604 Engine control module (ECM) – RAM   read/write error ECM
P1607 Engine control module (ECM) – shut down timer error ECM
P1610 Immobilizer control module – circuit malfunction Wiring, immobilizer control module, ECM
P1637 Malfunction of Memory Backup
P1676 VIN not programmed or mismatch – ECM ECM
P1696 Engine control module (ECM) – EEPROM   error ECM
P1697 Engine control module (ECM) – EEPROM   error ECM
P1700 – P1799 (Transmission)
P1715 Automatic transmission speed sensors A and 8 – malfunction Wiring, TCM, ECM
P1720 Vehicle speed sensor (VSS) – circuit malfunction Wiring, VSS, ECM
P1750 AT- torque converter/shift control and pressure control solenoid valves – malfunction Wiring, torque converter/shift control and pressure control solenoid valves, TCM, ECM
P1751 Automatic transmission – control relay malfunction Wiring, control relay, TCM, ECM
P1768 Transaxle Control Relays Always Off
P1791 Engine coolant temperature to TCM – signal malfunction Wiring, TCM, ECM
P1795 Throttle position (TP) switch to TCM – signal malfunction Wiring, TCM, ECM
P1800 – P1899 (Transmission)
P1820 Shift Fork Position Sensor 1 System Voltage Low Range Out
P1821 Shift Fork Position Sensor 1 System Voltage High Range Out
P1822 Shift Fork Position Sensor 1 System Output Range Out
P1823 Shift Fork Position Sensor 1 System Neutral
P1824 Shift Fork Position Sensor 1 System Poor Performance
P1825 Shift Fork Position Sensor 2 System Voltage Low Range Out
P1826 Shift Fork Position Sensor 2 System Voltage High Range Out
P1827 Shift Fork Position Sensor 2 System Output Range Out
P1828 Shift Fork Position Sensor 2 System Neutral
P1829 Shift Fork Position Sensor 2 System Poor Performance
P1831 Shift Fork Position Sensor 3 System Voltage Hihg Range Out
P1832 Shift Fork Position Sensor 3 System Voltage High Range Out
P1833 Shift Fork Position Sensor 3 System Neutral
P1834 Shift Fork Position Sensor 3 System Poor Performance
P1836 Shift Fork 1 Malfunction
P1844 Shift Fork 3 Malfunction
P1852 Shift Fork 1 Or 2 Opposite Direction Movement
P1855 Shift Fork 3 Or 4 Opposite Direction Movement
P1857 Odd Number Gear Axle Interlock
P1858 Even Number Gear Axle Interlock
P1859 Disengagement Too Late With Clutch 1
P1862 High Side 1 System Overcurrent
P1863 High Side 1 System Open Circuit
P1864 High Side 1 System Short To Power Supply
P1866 High Side 2 System Overcurrent
P1867 High Side 2 System Open Circuit
P1868 High Side 2 System
P1876 Gear Block 1st
P1877 Gear Block 2nd
P1878 Gear Block 3rd
P1879 Gear Block 4th
P1D00 – P1D99 (ISO/SAE Reserved)
P1D37 AC Input Fuse Abnormal Or AC Power Supply Equipment Abnormal (Mitsubishi)
U1000 – U2000 (Manufacturer defined, common defination listed)
U1073 CAN data bus – bus off, malfunction detected Wiring, ECM
U1102 Antilock brake system (ABS)/traction control system (TCS), CAN data bus- time out Wiring, ABS control module, ECM
U1108 Instrumentation control module, CAN data bus – time out Wiring, instrumentation control module, ECM
U1109 Multifunction control module, CAN data bus – time out Wiring, multifunction control module, ECM
U1110 AIC, CAN data bus – time out Wiring, A/C control module, ECM
U1117 Immobilizer control module, CAN data bus – time out Wiring, immobilizer control module, ECM

dpf Mitsubishi

What Are Mitsubishi Fault Code List?

Fault codes, often referred to as Diagnostic Trouble Codes (DTCs), are alphanumeric codes generated by your vehicle’s onboard computer system. They are like a secret language that your car uses to communicate issues it encounters. Each code corresponds to a specific problem within the vehicle.

The Significance of Mitsubishi Fault Code List

Mitsubishi fault codes serve as diagnostic tools for both car owners and mechanics. They provide vital information about the nature and location of a problem within the vehicle. Knowing how to interpret these codes can save you time and money on repairs.

Common Mitsubishi Fault Codes

Engine-Related Fault Codes

Engine-related fault codes are the most common ones you’ll encounter. These codes often indicate issues with the engine’s performance, emissions, or sensors. Some typical engine-related fault codes include:

  • P0300: Random/Multiple Cylinder Misfire Detected
  • P0420: Catalyst System Efficiency Below Threshold
  • P0171: System Too Lean (Bank 1)

Transmission-Related Fault Codes

Transmission-related fault codes are crucial for diagnosing problems with your Mitsubishi’s transmission system. Examples of transmission-related codes include:

  • P0700: Transmission Control System Malfunction
  • P0730: Incorrect Gear Ratio
  • P0780: Shift Malfunction

Electrical System Fault Codes

Electrical system fault codes pertain to issues with your vehicle’s electrical components. These may include problems with the battery, alternator, or wiring. Common electrical system fault codes include:

  • P0562: System Voltage Low
  • P0620: Generator Control Circuit Malfunction
  • P1614: MIL Request Circuit High Voltage

How to Retrieve Mitsubishi Fault Codes

Retrieving Mitsubishi fault codes is a straightforward process. You’ll need an OBD-II scanner, which is readily available online or at auto parts stores. Follow these steps:

  1. Locate the OBD-II port in your Mitsubishi (usually beneath the dashboard).
  2. Plug in the OBD-II scanner.
  3. Turn the ignition key to the “on” position without starting the engine.
  4. Follow the scanner’s instructions to retrieve fault codes.

Interpreting Mitsubishi Fault Codes List

Once you’ve retrieved the fault codes, it’s time to interpret them. Each code consists of a series of letters and numbers. The letters often indicate the system or component affected, while the numbers provide specific details about the issue.

DIY Troubleshooting for Mitsubishi Fault Codes List

Clearing Fault Codes

Clearing fault codes is possible if you’ve fixed the underlying issue or if the code was triggered erroneously. To clear the codes:

  1. Use the OBD-II scanner to access the “Clear Codes” function.
  2. Follow the scanner’s instructions to erase the codes.

Preventing Recurrence

Preventing fault code recurrence involves addessing the root cause of the issue. Consult your vehicle’s service manual or seek professional help for complex problems.

When to Seek Professional Help

While DIY troubleshooting can resolve many issues, some problems require the expertise of a trained mechanic. If you’re unsure about the severity of a fault code or lack the necessary tools, don’t hesitate to consult a professional.

The Role of Technology in Fault Code Diagnosis

Modern technology has revolutionized fault code diagnosis. Advanced diagnostic tools and smartphone apps now allow car owners to monitor their vehicles’ health in real-time. These innovations make it easier than ever to stay on top of potential issues.

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Unlocking Efficiency: The 30 Min DPF Clean Advantage

Tackling the challenges posed by heavy machinery, especially Mitsubishi equipment fault codes, can be daunting. But fret not! There’s a beacon of hope on the horizon, and it’s named the “30 Min DPF Clean.” We offer unmatched Diesel Particulate Filter (DPF) cleaning services in New Jersey, Philadelphia, and Delaware, setting us apart from the competition. Wondering why you should choose us for your machinery’s smooth operation? Let’s delve into the answer.

30 Min DPF Clean: Your Comprehensive Solution

What distinguishes 30 Min DPF Clean is our holistic approach to machinery maintenance. We don’t merely focus on DPF cleaning; we specialize in an array of services, encompassing Exhaust Gas Recirculation (EGR), Selective Catalytic Reduction (SCR), Diesel Oxidation Catalyst (DOC), and Catalytic Converter cleaning. By harnessing cutting-edge technology, we ensure your machinery functions seamlessly, reducing those troublesome fault codes. Get your Mitsubishi’s DPF cleaned today!

Quality Cleaning for Peak Performance

At 30 Min DPF Clean, we recognize that a clean machine is a content machine. That’s why we go the extra mile to eradicate ash, soot, and other residues from your diesel engines. Our exceptional DPF Cleaning service guarantees your machinery’s optimal performance, providing you peace of mind while keeping those fault codes at bay.

Competitive Rates, Exceptional Excellence

Ultimately, 30 Min DPF Clean delivers top-notch service without stretching your budget. Our competitive pricing structure, coupled with exceptional DPF cleaning services, positions us as the obvious choice for anyone seeking to extend the lifespan of their Mitsubishi machinery. So, when your equipment starts conversing through fault codes, consider reaching out to 30 Min DPF Clean. Our adept technicians are skilled in addressing various issues, assisting you in deciphering the Mitsubishi Fault Code List and swiftly restoring your machinery to operation. Remember, in machinery maintenance, it’s not solely about resolving problems—it’s about forestalling them. And 30 Min DPF Clean is your trusted companion on that voyage.


Understanding Mitsubishi fault codes empowers you to take control of your vehicle’s maintenance and repairs. With the right knowledge and tools, you can ensure your Mitsubishi runs smoothly for years to come. Don’t let those mysterious codes intimidate you—decode them and keep your ride on the road!

In the ever-evolving world of automotive technology, staying informed is your best defense against unexpected issues. So, the next time your Mitsubishi displays a fault code, you’ll be well-prepared to tackle it head-on. Happy driving!

FAQs: Your Burning Questions Answered

What do Mitsubishi fault codes mean?

Mitsubishi fault codes are alphanumeric representations of specific issues within your vehicle. Each code corresponds to a particular problem, making it easier to identify and address.

Can I drive my Mitsubishi with a fault code?

It depends on the severity of the code. Some codes indicate minor issues, while others signal potentially serious problems. It’s generally safe to drive with minor fault codes, but it’s best to address them promptly to prevent further damage.

Are all fault codes serious?

Not all fault codes are equally serious. Some may be related to minor sensor glitches, while others could indicate critical engine or safety issues. It’s essential to check and interpret the code to determine its severity.

How often should I check for fault codes?

Regularly checking for fault codes, especially during routine maintenance, can help identify issues before they escalate. An annual check or when you notice unusual symptoms is a good practice.

Can fault codes be cleared without fixing the issue?

While you can clear fault codes, it’s crucial to fix the underlying problem. Clearing codes without addressing the issue is a temporary solution that may lead to more significant problems down the road.

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For more information on Mitsubishi equipment and related services, visit the official Mitsubishi website.