Toyota Toyota Camry Celica Corolla MR2 Trouble Code Info

Toyota

Accessing Trouble Codes

  • Switch ignition ON. Do NOT start engine.
  • Corolla – jump data link connector (DLC) terminals T and E1 with a short lead 1
  • Camry – 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
  • 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
  • NOTE: The MIL flashes once every 0.25 seconds if the system is correct
  • Switch ignition OFF
  • Remove jump lead
Camry Checking Codes

Corolla 1.6L (AE92/AE95) 4A-GE

 
Camry Checking Codes

Camry 2.0/2.5L 3S-FE/2VZ-FE

 
MR2 Checking Codes

MR2 1.6L/Supercharged 4A-GE/GZE

 
Celica 2.0L 3S-GE/FE/GTE

Celica 2.0L 3S-GE/FE/GTE

     

Clearing Trouble Codes

  • After the faults have been rectified, erase the trouble codes as follows:
  • Corolla – remove STOP fuse (15A) from LH kick panel fusebox for 10 seconds minimum 7
  • Camry – remove EFI fuse (15A) from underhood fusebox for 10 seconds minimum 8
  • MR2 – remove AM2 fuse (7.5A) from No.2 underhood fusebox for 10 seconds minimum 9
  • Celica – remove EFI fuse (15A) from underhood fusebox for 10 seconds minimum 10
  • Reinstall fuse
  • Repeat accessing procedure to ensure no data remains in ECM fault memory
Corolla Erasing Codes

Corolla 1.6L (AE92/AE95) 4A-GE

 
Camry Erasing Codes

Camry 2.0/2.5L 3S-FE/2VZ-FE

 
MR2 Erasing Codes

MR2 1.6L/Supercharged 4A-GE/GZE

 
Celica Erasing Codes

Celica 2.0L 3S-GE/FE/GTE

   
1987-91 Camry  2.0/2.5 L Engine Code: 3S-FE/2VZ-FE
1986-89 Celica  2.0 L Engine Code: 3S-GE/FE/GTE
1988-91 Corolla  1.6 L Engine Code: 4A-GE
1988-90 MR2 1.6 L/Supercharged Engine Code: 4A-GE/GZE
Trouble code Fault location Probable cause
11 Engine control module (ECM) power supply Wiring, ignition switch, engine control relay, ECM
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/coi/, ECM
16 Transmission control signal Wiring, ECM, TCM
21 Heated oxygen sensor (H02S) -front circuit Wiring, H02S, ECM
22 Engine coolant temperature (ECT) sensor circuit Wiring, ECT sensor, ECM
24 lntake air temperature (lAT) sensor-circuit Wiring, IAT sensor, ECM
25 Mixture control -continuously lean Wiring, injector, H02S, ECTNAF sensor, intake fuel/ignition system, ECM
26 Mixture control -continuously rich Wiring, injector, fuel system, cold start injector, H02S, ECTNAF sensor, ECM
27 Heated oxygen sensor (H02S) -rear-circuit Wiring, H02S, ECM
31 Volume air flow (VAF) sensor-circuit Wiring, VAF sensor, ECM
32 Volume air flow (VAF) sensor-circuit Wiring, VAF sensor, ECM
34 Turbocharger (TC) wastegate pressure sensor high pressure TC wastegate/pressure sensor, wiring, ECM
35 Turbocharger (TC) wastegate pressure sensor circuit Wiring, TC wastegate pressure 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/neutra! position (PNP) switch not in P or N during diagnosis Wiring, PNP switch, ECM
52 Knock sensor (KS) -circuit Wiring, KS, ECM
53 Knock control -malfunction ECM
54 Turbocharger (TC) intercooler control module low coolant level coolant level/sensor, wiring, intercooler control module, ECM .
54 Turbocharger (TC) intercooler control module coolant pump motor intercooler coolant circuitlwater pump
71 Exhaust gas recirculation (EGR) system -malfunction Hose leak/blockage, wiring, EGRT sensor, EGR solenoid, ECM