Toyota Toyota 86 Celica 86-87 Corolla/Sport/MR2 87-88 Pickup/4Runner Trouble Code Info

Toyota

Checking – MIL

  • Switch ignition ON
  • Check MIL illuminates
  • Start engine. ¬†Allow to idle.
  • If MIL extinguishes, no trouble codes have been recorded.
  • If MIL remains illuminated, access trouble codes.

Accessing Trouble Codes

  • Switch ignition ON. Do NOT start engine.
  • Corolla – jump DLC terminals 1 and 2 with a short lead 1
  • Corolla sport – jump DLC terminals T and E1 with a short lead 2
  • MR2 – jump DLC terminals T and E1 with a short lead 3
  • Celica – jump DLC terminals T and E1 with a short lead 4
  • 4Runner/Pickup – jump DLC terminals T and E1 with a short lead 5
  • Count MIL flashes and compare with trouble code table below
  • Trouble codes are indicated by 0.5 second flashes
  • 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
Toyota corolla 86-87 Toyota Corolla sport 86-87 Toyota MR2 86-87 Toyota Celica 86 Toyota 4runner 87-88

Clearing Trouble Codes

  • After the faults have been rectified, erase the trouble codes as follows:
  • Corolla/Sport – remove STOP fuse (15A) from LH kick panel fusebox for 10 seconds minimum
  • MR2 – remove AM2 fuse (7.5A) from No.2 underhood fusebox for 10 seconds minimum
  • Celica – remove EFI fuse (15A) from underhood fusebox for 10 seconds minimum
  • 4Runner/Pickup – remove EFI fuse (15A) from LH kick panel fusebox for 30 seconds minimum
  • Reinstall fuse
  • Repeat accessing procedure to ensure no data remains in ECM fault memory

 Trouble Codes

86 Celica 2.0L Engine Code: 2S-E
86-87 Corolla/Sport 1.6L Engine Code: 4A-GE
86-87 MR2 1.6L Engine Code: 4A-GE
87-88 Pickup 2.4L/Turbo Engine Code: 22R-E/TE
87-88 4Runner 2.4L/Turbo Engine Code: 22R-E/TE
Trouble code Fault location Probable Cause
1 No fault
2 Volume air flow (VAF) sensor-circuit Wiring, VAF sensor, ECM
3 Ignition signal -no signal Wiring, ignition module, ECM
4 Engine coolant temperature (ECT) sensor circuit Wiring, ECT sensor, ECM
5 Oxygen sensor (02S) – circuit Wiring, 025, ECM
6 Engine speed (RPM) sensor -circuit Wiring, RPM sensor, ignition module, ECM
7 Throttle position (TP) sensor -circuit Wiring, TP sensor, ECM
8 lntake air temperature (lAT) sensor circuit Wiring, /AT sensor, ECM
9 Vehicle speed sensor (VSS) -circuit Wiring, VSS, ECM
10 Starter signal -circuit Wiring, ignition switch, ECM
11 Switch signal -A/C switch ON during diagnosis Wiring, AIC switch, ECM
11 Switch signal -closed throttle position (CTP) switch OFF during diagnosis Wiring, CTP switch, ECM
11 Switch signal -park/neutra! position (PNP) switch in D during diagnosis Wiring, PNP switch, ECM
12 Knock sensor (KS) -circuit Wiring, KS, ECM
13 Knock control – malfunction ECM
14 Turbocharger (TC) pressure Turbocharger (TC), VAF sensor, ECM