Toyota OBD/OBD2 Codes >> Toyota Tercel 90-94 1.5L 3E-E

Accessing Trouble Codes

  • Switch ignition ON. Do NOT start engine.
  • Jump DLC terminals T and E1 with a short lead 1
  • Count MIL flashes and compare with trouble code table (below)
  • First flashes of .5 second duration indicate ‘tens’, after a 1.5 second pause, next flashes of .5 second duration indicate ‘units’
  • A 2.5 second pause occurs between codes
  • After a 4.5 second pause, trouble codes will be repeated
  • Switch ignition OFF
  • Remove jump lead

Clearing Trouble Codes

  • Ensure ignition switched OFF
  • Remove EFI fuse (15A) from underhood fusebox
  • Wait 60 seconds
  • Reinstall fuse
  • Repeat accessing procedure to ensure no data remains in ECM fault memory
90-94 1.5L Engine Code: 3E-E
Trouble code Fault location Probable cause
12 Engine speed (RPM) sensor -circuit Wiring, RPM sensor, ECM
13 Engine speed (RPM) sensor -above 1000 rpm Wiring, RPM sensor, ECM
14 Ignition reference signal -no signal Wiring, ignition module/coil, ECM
21 Heated oxygen sensor (H02S) -circuit Wiring, H02S, ECM
22 Engine coolant temperature (ECT) sensor circuit Wiring, ECT sensor, ECM
24 lntake air temperature (lAT) sensor-circuit Wiring, lAT sensor, ECM
25 Mixture control -continuously lean Wiring, injector, H02S, ECT/MAP sensor, intake/fuel/ignition system, ECM
26 Mixture control -continuously rich Wiring, injector, fuel system, cold start injector, H02S, ECT/MAP sensor, ECM
31 Manifold absolute pressure (MAP) sensor circuit Wiring, MAP sensor, ECM
41 Throttle position (TP) sensor-circuit Wiring, TP sensor, ECM
42 Vehicle speed sensor (VSS) -circuit Wiring, VSS, ECM
43 Starter signal -circuit Wiring, ignition switch, ECM
51 Switch signal -A/C switch ON during diagnosis Wiring, A/C switch, A/C amplifier, ECM
51 Switch signal -closed throttle position (CTP) switch OFF during diagnosis Wiring, CTP switch, ECM
51 Switch signal -park/neutral position (PNP) switch not in P or N during diagnosis Wiring, PNP switch, ECM
71 Exhaust gas recirculation (EGR) system -malfunction Hose leak/blockage, wiring, EGRT sensor, EGR solenoid, ECM

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