Eagle >> Summit 1.5L

Model Year Engine identification System
Summit 1.5L 1994 4G15 Mitsubishi MPI

General information

  • Malfunction indicator lamp (MIL) will illuminate or flash if certain faults are recorded .
  • ECM operates in backup mode if sensors fail , to enable vehicle to be driven to repair shop.
  • Trouble codes can be displayed by using an analogue voltmeter or Scan Tool connected to the data link connector(s) (DLC).

Accessing

  • Ensure ignition switched OFF.
  • Access 12 pin and 16 pin data link connectors (DLC) [2]
  • Connect an analogue voltmeter between 12 pin data link connector (DLC) terminal 5 and 16 pin data link connector (DLC) terminal 4 or 5 [2].
  • Switch ignition ON.
  • Count voltmeter needle deflections. Note trouble codes. Compare with trouble code table.
  • Each trouble code consists of two groups of one or more needle deflections [3]:
o Long needle deflections indicate the ‘tens’ of the trouble code [3] A.
o Short needle deflections indicate the ‘units’ of the trouble code [3] D.
o A short pause separates each trouble code group [3] C .
o A long pause separates each trouble code [3] E.
o For example: Trouble code 22 displayed [3]
  • If a constant deflection is displayed: Suspect engine control module (ECM).
  • If constant short deflections are displayed: No trouble code is stored.
  • Trouble codes can also be displayed by using a Scan Tool connected to the data link connector(s) (DLC).

Erasing

NOTE: Disconnecting battery ground lead may cause driveability problems until the engine management system relearns basic values.
  • Ensure ignition switched OFF.
  • Disconnect battery ground cable for at least 15 seconds.
  • Reconnect battery ground lead.
  • Repeat checking procedure to ensure no data remains in ECM fault memory.
  • Trouble codes can also be erased by using a Scan Tool connected to the data link connector(s) (DLC).
NOTE: Disconnecting battery ground lead may erase memory from electronic units such as radio.

Trouble code  identification

Flash code Fault location Probable cause
11 Heated oxygen sensor (H02S) 1, bank 1 circuit malfunction Wiring, fuel pressure, injector(s), intake leak, H02S, ECM
13 Intake air temperature (IAT) sensor -circuit malfunction Wiring, IAT sensor, ECM
14 Throttle position (TP) sensor -circuit malfunction Wiring, TP sensor, CTP switch, ECM
21 Engine coolant temperature (EeT) sensor circuit malfunction Wiring, EeT sensor, ECM
22 Crankshaft position (CKP) sensor -circuit malfunction Wiring, CKP sensor, ECM
23 Camshaft pOSition (CMP) sensor -circuit malfunction Wiring, CMP sensor, ECM
24 Vehicle speed sensor (VSS) -circuit malfunction Wiring, VSS, ECM
32 Manifold absolute pressure (MAP) sensor circuit malfunction Wiring, MAP sensor, ECM
36 Ignition timing adjustment Wiring, ignition timing connector short to ground, ECM
41 Injectors -circuit malfunction Wiring, injectors, ECM
43 Exhaust gas recirculation (EGR) system circuit malfunction Wiring, hose leak/blockage, EGR valve, EGR temperature sensor, EGR solenoid, ECM
55 Idle air control (lAC) valve position sensor circuit malfunction Wiring, lAC valve, lAC valve position sensor, ECM
59 Heated oxygen sensor (H02S) 2, bank 1 circuit malfunction Wiring, H02S, ECM