Mitsubishi OBD I Diagnostic Trouble Codes
Mitsubishi Corporation OBD I diagnostic trouble codes are shown here how to get the codes without any special tools. The codes are listed seperately based upon 4 cylider, six cylinder, Eclipse with or without turbo. The codes are defined as to what system is affected. When possible we give the more commonly known OBD II component name.
This information combined with proper testing procedures, specifications, and tools like a digital multimeter can help you fix the vehicle right the first time. OBD diagnostic does not have to be difficult or inconclusive.
This is not meant to be a substitute for information in the factory service manuals or the product service training manuals.
automotive multimeter measures volts, amps, ohms, frequency, temperatures
12 Volt Test Probe
test power and ground circuits easily, tests fuses without removal
| Code | Model | Description |
| ========================================================== | ||
| 11 | V6 and 89-95 4 Cyl. (Exc. 95 Eclipse) | Oxygen Sensor (O2S) Fault |
| 95-98 Eclipse Non Turbo) | Intermittent Loss Of Crankshaft Position Sensor (CKP); Misfire Adaptive Numerator at Limit;No Crankshaft Reference Signal at Powertrain Control Module (PCM); Timing Belt Skipped 1 Tooth or More
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| ========================================================== | ||
| 12 | V6 and 89-95 4 Cyl. (Exc. 95 Eclipse) | Airflow Sensor Fault (MAF) |
| ========================================================== | ||
| 13 | V6 and 89-95 4 Cyl. (Exc. 95 Eclipse) | Intake air temp (IAT) sensor fault |
| 95-98 Eclipse Non Turbo) | No Change In Manifold Absolute Pressure (MAP) From Start To Run | |
| ========================================================== | ||
| 14 | V6 and 89-95 4 Cyl. (Exc. 95 Eclipse) | Throttle position sensor (TPS) fault |
| 95-98 Eclipse Non Turbo) | Manifold Absolute Pressure (MAP) Sensor 5-Volt Supply Output Too Low; Voltage Too High; Voltage Too Low; No 5 Volts To Manifold Absolute Pressure (MAP) Sensor | |
| ========================================================== | ||
| 15 | V6 and 89-95 4 Cyl. (Exc. 95 Eclipse) | Idle speed control (ISC) motor position sensor fault |
| 95-98 Eclipse Non Turbo) | No Vehicle Speed Sensor (VSS) Signal | |
| ========================================================== | ||
| 16 | 95-98 Eclipse Non Turbo) | Knock Sensor No. 1 Circuit |
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| 17 | 95-98 Eclipse Non Turbo) | Closed Loop Temperature Not Reached; Engine Is Cold Too Long |
| ========================================================== | ||
| 21 | V6 and 89-95 4 Cyl. (Exc. 95 Eclipse) | Open Or Shorted Coolant Temp Sensor (CTS) Signal Circuit |
| 95-98 Eclipse Non Turbo) | Downstream Heated Oxygen Sensor (HO2S) Heater Failure; Shorted To Voltage; Stays at Center; Voltage Grounded; Upstream Heated Oxygen Sensor (HO2S)Slow Circuit during Catalyst Monitor; Heater Failure; Response; Shorted To B+; Stays at Center; Voltage Grounded |
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| ========================================================== | ||
| 22 | V6 and 89-95 4 Cyl. (Exc. 95 Eclipse) | Crankshaft position (CKP) sesnor fault |
| 95-98 Eclipse Non Turbo) | Engine Coolant Temperature Sensor (CTS) Voltage High or Low | |
| ========================================================== | ||
| 23 | V6 and 89-95 4 Cyl. (Exc. 95 Eclipse) | Camshaft position (CMP)/ Top Dead Center (TDC) sensor fault |
| 95-98 Eclipse Non Turbo) | Intake Air Temperature Sensor (IAT) Voltage High or Low | |
| ========================================================== | ||
| 24 | V6 and 89-95 4 Cyl. (Exc. 95 Eclipse) | Vehicle speed sensor (VSS) fault |
| 95-98 Eclipse Non Turbo) | Throttle Position Sensor (TPS) No 5 Volts present ; Voltage High or Low;Sensor Voltage Disagrees With Manifold Absolute Pressure (MAP) | |
| ========================================================== | ||
| 25 | V6 and 89-95 4 Cyl. (Exc. 95 Eclipse) | Barometric (BARO) pressure sensor fault |
| 95-98 Eclipse Non Turbo) | Idle Air Control (IAC) Motor Circuits; Target Idle Not Reached (plus or minus 200 RPM) | |
| ========================================================== | ||
| 27 | 95-98 Eclipse Non Turbo) | Injector Control Circuit 1,2,3 or 4 |
| ========================================================== | ||
| 31 | V6 and 89-95 4 Cyl. (Exc. 95 Eclipse) | Knock sensor fault |
| 95-98 Eclipse Non Turbo) | EVAP System Leak Monitor Pinched Hose found; Purge Flow Monitor Failure; Solenoid Circuit; Solenoid Switch or Mechanical Fault;System Large Leak; System Small Leak; Vent Solenoid Circuit; Engine Coolant Temp sensor (CTS) voltage too high |
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| ========================================================== | ||
| 32 | V6 and 89-95 4 Cyl. (Exc. 95 Eclipse) | Manifold Absolute Pressure (MAP) sensor faulty |
| 95-98 Eclipse Non Turbo) | Exhaust Gas Recirculation (EGR) Solenoid Circuit; EGR System Failure | |
| ========================================================== | ||
| 33 | 95-98 Eclipse Non Turbo) | A/C Clutch Relay Circuit |
| ========================================================== | ||
| 35 | 95-98 Eclipse Non Turbo) | High Speed Fan Control Relay Circuit; High Speed Radiator Fan Relay Circuit; Low Speed Fan Control Relay Circuit |
| ========================================================== | ||
| 36 | V6 and 89-95 4 Cyl. (Exc. 95 Eclipse) | Ignition timing adjustment signal fault |
| 95-98 Eclipse Non Turbo) | Too Little or Too Much Secondary Air (AIR); PAIR Solenoid Circuit - M/T | |
| ========================================================== | ||
| 37 | 95-98 Eclipse Non Turbo) | Park/Neutral Position Switch (PRNDL) Failure |
| ========================================================== | ||
| 39 | V6 and 89-95 4 Cyl. (Exc. 95 Eclipse) | Oxygen (O2S) sensor fault |
| ========================================================== | ||
| 41 | V6 and 89-95 4 Cyl. (Exc. 95 Eclipse) | Problem In Fuel Injector Circuit; |
| 95-98 Eclipse Non Turbo) | Alternator Field Not Switching Properly | |
| ========================================================== | ||
| 42 | V6 and 89-95 4 Cyl. (Exc. 95 Eclipse) | Fuel pump fault |
| 95-98 Eclipse Non Turbo) | Fuel Level Sensing Unit Voltage Too High or Low; No Change Over Miles Fuel Pump Relay Control Circuit; MFI (ASID) Relay Control Circuit; No MFI (ASD) Relay Output Voltage at PCM; |
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| ========================================================== | ||
| 43 | V6 and 89-95 4 Cyl. (Exc. 95 Eclipse) | Exhaust Gas Recirculation (EGR) valve fault |
| 95-98 Eclipse Non Turbo) | Misfire Cylinder No. 1, 2, 3 or 4; Multiple Cylinder Misfire Ignition Coil No. 1 Primary Circuit; Ignition Coil No. 2 Primary Circuit |
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| ========================================================== | ||
| 44 | 4 Cylinder | Ignition coil fault |
| V6 | Ignition coil or Power Transistor Unit (cylinders #1 & #4) fault | |
| 95-98 Eclipse Non Turbo) | Battery Temperature Sensor (BTS) Voltage Too High or Low; Voltage out of limit | |
| ========================================================== | ||
| 45 | 95-98 Eclipse Non Turbo) | Electronic Automatic Transmission (EATX) Controller Trouble Code Present |
| ========================================================== | ||
| 46 | 95-98 Eclipse Non Turbo) | Charging System Voltage Too High |
| ========================================================== | ||
| 47 | 95-98 Eclipse Non Turbo) | Charging System Voltage Too Low |
| ========================================================== | ||
| 51 | 95-98 Eclipse Non Turbo) | Fuel System Lean |
| ========================================================== | ||
| 52 | V6 | Ignition coil or Power Transistor Unit (cylinders #2 & #5) fault |
| 95-98 Eclipse Non Turbo) | Fuel System Rich | |
| ========================================================== | ||
| 53 | V6 | Ignition coil or Power Transistor Unit (cylinders #3 & #6) fault |
| 95-98 Eclipse Non Turbo) | Internal Controller Failure; PCM Failure - Serial Peripheral Interface Communications | |
| ========================================================== | ||
| 54 | 95-98 Eclipse Non Turbo) | No Cam Sensor (CMP) Signal at PCM |
| ========================================================== | ||
| 55 | V6 and 89-95 4 Cyl. (Exc. 95 Eclipse) | Idle air control (IAC) valve position sensor / Servo Valve Position (SVP) fault |
| ========================================================== | ||
| 59 | 4 Cylinder | Rear Oxygen (O2S) sesnor fault |
| V6 | Left hand Bank Heated Oxygen Sensor (HO2S) sesnor fault | |
| ========================================================== | ||
| 61 | V6 and 89-95 4 Cyl. (Exc. 95 Eclipse) | Transaxle control module (TCM) torque reduction signal fault |
| MPFI | Cable from Transaxle Control Unit | |
| 95-98 Eclipse Non Turbo) | BARO Pressure Out Of Range | |
| ========================================================== | ||
| 62 | V6 and 89-95 4 Cyl. (Exc. 95 Eclipse) | Variable Induction control (VIC) valve position sensor fault (non turbo) |
| 95-98 Eclipse Non Turbo) | Powertrain Control Module (PCM) Failure - Service Reminder Indicator Mile Not Stored | |
| ========================================================== | ||
| 63 | 95-98 Eclipse Non Turbo) | Powertrain Control Module (PCM) Failure - EEPROM Write Denied |
| ========================================================== | ||
| 64 | 95-98 Eclipse Non Turbo) | Catalytic Converter Efficiency Failure |
| ========================================================== | ||
| 65 | 95-98 Eclipse Non Turbo) | Power Steering Pressure Switch Failure |
| ========================================================== | ||
| 66 | 95-98 Eclipse Non Turbo) | No CCD Messages From Transaxle control module (TCM) - A/T |
| ========================================================== | ||
| 69 | V6 | Right hand Bank Heated Oxygen Sensor (HO2S) |
| ========================================================== | ||
| 71 | V6 and 89-95 4 Cyl. (Exc. 95 Eclipse) | Traction control (TC) vacuum valve solenoid fault |
| ========================================================== | ||
| 72 | V6 and 89-95 4 Cyl. (Exc. 95 Eclipse) | Traction Control (TC) vent valve solenoid fault |
| ========================================================== | ||
Using The MIL Light To Get Codes
Turn the key to the "on" position to confirm that the Malfunction Indicator Light (MIL) functions.
Turn ignition switch to OFF position
Locate Data Link Connector (DLC), next to fuse box.
1. Ground Data Link Connector terminal # 1.
2. Set the ignition switch to "ON", the Malfunction Indicator Light (MIL) (check engine light) 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.
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.
Accessing DTCs using an Analog Voltmeter or a 12 Volt Test Light
* Turn ignition switch to OFF position
* Locate Data Link Connector (DLC), next to fuse box.
* Connect an analog voltmeter or 12 volt test light positive lead to DLC terminal #1 (MPI Diagnosis) and Negative lead to terminal #12 (ground).
* Turn Ignition switch to ON position.
* Codes are read as12 volt (Morse Code). pulses on the voltmeter or the test light
* A constant repetition of short pulses is normal.
* Signals will appear on the voltmeter / test light as long and short 12 volt pulses.
* Long pulses represent tens
* Short pulses represent ones (3 long pulses and 1 short pulses indicates code 31)
