Mitsubishi OBD / OBD2 Codes >> 3000GT 3.0L/Turbo – Diamante 3.0L – Galant 2.4L – Mirage 1.8L (1994 – 1995)

ModeL Year Engine identification System
3000GT 3.0L/Turbo 1994-95 6G72 D0HC MPI
Diamante 3.0L 1994-95 6G72 MPI
Galant 2.4L 1994-95 4G64 MPI
Mirage 1.8L – California 1994 4G93 MPI
Mirage 1.8L – Federal 1994-95 4G93 MPI

General information

  • Engine control module (ECM) incorporates self-diagnosis function. .
  • Malfunction indicator lamp (MIL) will illuminate if certain faults are recorded.
  • ECM operates in backup mode if certain sensors fail, to enable car to be driven to workshop.
  • Trouble codes can be accessed with a voltmeter or a suitable code reader connected to the data link connector (DLC).


  • Ensure ignition switched OFF.
  • Access data link connector (DLC):
o Mirage- [1].
o GalanU3000GT – [2]
o Diamante – [3]
  • Jump DLC terminal 1 and ground [4].
  • Switch ignition ON. Do NOT start engine.
  • MIL should be flashing.
o 1.5 second flashes indicate the ‘tens’ of the trouble code [5] [A].
o 0.5 second flashes indicate the ‘units’ of the trouble code [5] [B].
o A 0.5 second pause separates each flash [5] [C).
o A 2 second pause separates ‘tens’ and ‘units’ [5] [D].
o A 3 second pause separates each trouble code [5] [E].
o For example: Trouble code 24 displayed [5].
  • If no trouble codes are stored, short flashes will continue to be displayed.
  • If MIL remains ON: Suspect faulty engine control module (ECM).
  • Count MIL flashes and compare with trouble code table.
  • Switch ignition OFF.
  • Remove jump lead.


  • Ensure ignition switched OFF.
  • Disconnect battery ground lead for 15 seconds minimum.
  • Reconnect battery ground lead.
  • Repeat checking procedure to ensure no data remains in ECM fault memory.

NOTE: Disconnecting battery ground lead may erase memory from electronic units such as radio.

Trouble code  identification

Flash code Fault location Probable cause
11 Oxygen sensor (02S)/heated oxygen sensor   (H02S) – front – malfunction Wiring, 025/H025, fuel system, injectors, ECM
12 Volume air flow (VAF) sensor- malfunction Wiring, VAF sensor, ECM
13 Intake air temperature (IAT) sensor- malfunction Wiring, IAT sensor, ECM
14 Throttle position (TP) sensor – malfunction Wiring, TP sensor, CTP switch, ECM
21 Engine coolant temperature (ECT) sensor- malfunction Wiring, ECT sensor, ECM
22 Crankshaft position (CKP) sensor – malfunction Wiring, CKP sensor, ECM
23 Camshaft position (CMP) sensor – malfunction Wiring, CMP sensor, ECM
24 Vehicle speed sensor (VSS) – malfunction Wiring, VSS, ECM
25 Barometric pressure (BARO) sensor- malfunction Wiring, BARO sensor, ECM
31 Knock sensor (KS) – malfunction Wiring, KS, ECM
36 Ignition timing adjustment Wiring short to ground
39 Heated oxygen sensor (H02S) – fronVRH   front – malfunction Wiring, H025, fuel system, injectors, ECM
41 Injectors – malfunction Wiring, injectors, ECM
42 Fuel pump – malfunction Wiring, relay module, fuel pump, ECM
43 Exhaust gas recirculation (EGR) system – malfunction Wiring, EGR, EGRT, EGRTVV, hose leak, ECM
44 Ignition coil/ignition module – cylinders 1 & 4 – malfunction Wiring, ignition coil/module, ECM
52 Ignition coil/ignition module – cylinders 2 & 5 – malfunction Wiring, ignition coil/module, ECM
53 Ignition coil/ignition module – cylinders 3 & 6 – malfunction Wiring, ignition coil/module, ECM
55 Idle speed control (ISC) actuator position sensor – malfunction Wiring, ISC actuator position sensor, ECM
59 Heated oxygen sensor (H02S) – rear/LH   rear – malfunction Wiring, H02S, ECM
61 AT – torque reduction signal – malfunction Wiring, TCM
62 Intake manifold air control actuator position sensor – malfunction Wiring, position sensor, actuator, ECM
69 Heated oxygen sensor (H02S) – RH rear – malfunction Wiring, H025, ECM
71 · Traction control vacuum solenoid – malfunction Wiring, solenoid, ECM
72 Traction control ventilation solenoid – malfunction Wiring, solenoid, ECM