
2AZ-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–15
ES
OK
NG
OK
NG
OK
6CHECK FUEL PRESSURE
TROUBLESHOOT FUEL PRESSURE AND
PROCEED TO NEXT STEP
7CHECK FOR SPARK
TROUBLESHOOT SPARK AND PROCEED
TO NEXT STEP
PROCEED TO PROBLEM SYMPTOMS TABLE

2AZ-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–33
ES
HINT:
*: The ECM terminal voltage is constant regardless of the
output voltage from the sensor.
M- (B30-41) - ME01 (B30-43) W - W-B Throttle actuator Idling with warm enginePulse generation (see
waveform 10)
FC (A9-7) - E1 (B30-104) W - BR Fuel pump controlIgnition switch ON 9 to 14 V
Idling Below 1.5 V
W (A9-24) - E1 (B30-104) R - BR MILIgnition switch ON Below 1.5 V
Idling 9 to 14 V
TC (A9-27) - E1 (B30-104) G - BR Terminal TC of DLC3 Ignition switch ON 9 to 14 V
TACH (A9-15) - E1 (B30-104) GR - BR Engine speed IdlingPulse generation (see
waveform 11)
VPMP (A9-42) - E1 (B30-104) W - BRVent valve (built into
canister pump module)Ignition switch ON 9 to 14 V
MPMP (A9-34) - E1 (B30-104) B - BRLeak detection pump (built
into canister pump
module)Leak detection pump OFF Below 3 V
Leak detection pump ON 9 to 14 V
VCPP (B30-70) - EPPM (B30-94) Y - BRPower source for canister
pressure sensor (specific
voltage)Ignition switch ON 4.5 to 5.5 V
PPMP (B30-71) - EPPM (B30-94) V - BRCanister pressure sensor
(built into canister pump
module)Ignition switch ON 3 to 3.6 V
ELS1 (A9-31) - E1 (B30-104) O - BR Electric loadTaillight switch ON 7.5 to 14 V
Taillight switch OFF Below 1.5 V
ELS3 (A9-33) - E1 (B30-104) G - BR Electric loadDefogger switch ON 7.5 to 14 V
Defogger switch OFF Below 1.5 V
FANL (A9-21) - E1 (B30-104) R - BR Fan No. 1 relayIgnition switch ON 9 to 14 V
Idling with A/C ON, or high engine
coolant temperatureBelow 1.5 V
FANH (A9-22) - E1 (B30-104) W - BR Fan No. 2 relayIdling with high engine coolant
temperatureBelow 1.5 V
ALT (B30-50) - E1 (B30-104) B - BR Generator Ignition switch ON 9 to 14 V
CANH (A9-41) - E1 (B30-104) Y - BR CAN communication line Ignition switch ONPulse generation (see
waveform 12)
CANL (A9-49) - E1 (B30-104) W - BR CAN communication line Ignition switch ONPulse generation (see
waveform 13)
VCIB (B30-69) - EIB (B30-92) R - BR Battery current sensor Ignition switch ON 4.5 to 5.5 V
IB (B30-68) - EIB (B30-92) B - BR Battery current sensor Ignition switch ON 0.5 to 2.5 V
THB (B30-120) - EIB (B30-92) LG - BRBattery temperature
sensorIgnition switch ON, Battery
temperature -30 to 80
C (-22 to
176
F)0.5 to 4.5 V
RLO (B30-51) - E1 (B30-104) GR - BR GeneratorAfter engine warmed up, during
charging control, vehicle driven at
constant speedPulse generation (see
waveform 14)
RLO (B30-51) - E1 (B30-104) GR - BR GeneratorAfter engine warmed up, during
charging control, vehicle
acceleratedPulse generation (see
waveform 15)
RLO (B30-51) - E1 (B30-104) GR - BR GeneratorAfter engine warmed up, during
charging control, vehicle
deceleratedPulse generation (see
waveform 16) Symbols (Terminal No.) Wiring Colors Terminal Descriptions ConditionsSpecified
Conditions

2AZ-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–43
ES
KNOCK FB VAL Feedback value of knocking -
ACCEL POS #1Absolute Accelerator Pedal Position (APP)
No.1-
ACCEL POS #2 Absolute APP No. 2 -
THROTTLE POS Throttle sensor positioning -
THROTTLE POS Throttle position -
THROTTLE POS #2 Throttle sensor positioning #2 -
THROTTLE MOT Throttle motor -
O2S B1 S2 Heated oxygen sensor outputPerforming INJ VOL or A/F CONTROL
function of ACTIVE TEST enables technician
to check output voltage of sensor
AFS B1 S1 A/F sensor outputPerforming INJ VOL or A/F CONTROL
function of ACTIVE TEST enables technician
to check output voltage of sensor
TOTAL FT #1 Total fuel trim -
SHORT FT #1 Short-term fuel trimShort-term fuel compensation used to
maintain air-fuel ratio at stoichiometric air-fuel
ratio
LONG FT #1 Long-term fuel trimOverall fuel compensation carried out in long-
term to compensate a continual deviation of
short-term fuel trim from central valve
FUEL SYS #1 Fuel system status• OL (Open Loop): Has not yet satisfied
conditions to go closed loop
• CL (Closed Loop): Using A/F sensor as
feedback for fuel control
• OL DRIVE: Open loop due to driving
conditions (fuel enrichment)
• OL FAULT: Open loop due to detected
system fault
• CL FAULT: Closed loop but A/F sensor,
which used for fuel control malfunctioning
O2FT B1 S2 Fuel trim at heated oxygen sensor -
AF FT B1 S1 Fuel trim at A/F sensor -
AFS B1 S1 A/F sensor current -
CAT TEMP B1S1 Estimated catalyst temperature (sensor 1) -
CAT TEMP B1S2 Estimated catalyst temperature (sensor 2) -
S O2S B1S2Sub heated oxygen sensor impedance
(sensor 2)-
INI COOL TEMP Engine coolant temperature at engine start -
INI INTAKE TEMP Intake air temperature at engine start -
INJ VOL Injection volume -
STARTER SIG Starter switch (STSW) signal -
PS SW Power steering signal -
PS SIGNAL Power steering signal (history)Signal status usually ON until ignition switch
turned OFF
CTP SW Closed throttle position switch -
A/C SIGNAL A/C signal -
PNP SW (NSW) Park/Neutral Position (PNP) switch signal -
ELECT LOAD SIG Electrical load signal -
STOP LIGHT SW Stop light switch -
BATTERY VOLTAGE Battery voltage -
ATM PRESSURE Atmosphere pressure -
EVAP (Purge) VSV EVAP Purge VSV -
FUEL PUMP/SPD Fuel pump/speed status -LABEL
(Intelligent Tester Display)Measurement Item Diagnostic Note

2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–17
ES
OK
NG
OK
NG
OK
6CHECK FUEL PRESSURE
TROUBLESHOOT FUEL PRESSURE AND
PROCEED TO NEXT STEP
7CHECK FOR SPARK
TROUBLESHOOT SPARK AND PROCEED
TO NEXT STEP
PROCEED TO PROBLEM SYMPTOMS TABLE

ES–362GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
VV2+ (B30-67) - VV2- (B30-90) W - B Variable valve timing
(VVT) sensor (Intake side
(bank 2))Idling Pulse generation
(see waveform 5)
EV1+ (B30-68) - EV1- (B30-91) Y - G Variable valve timing
(VVT) sensor (Exhaust
side (bank 1))Idling Pulse generation
(see waveform 5)
EV2+ (B30-66) - EV2- (B30-89) R - L Variable valve timing
(VVT) sensor (Exhaust
side (bank 2))Idling Pulse generation
(see waveform 5)
NE+ (B30-110) - NE- (B30-111) G - R Crankshaft position sensor Idling Pulse generation (see
waveform 5)
IGT1 (B30-40) - E1 (B30-81)
IGT2 (B30-39) - E1 (B30-81)
IGT3 (B30-38) - E1 (B30-81)
IGT4 (B30-37) - E1 (B30-81)
IGT5 (B30-36) - E1 (B30-81)
IGT6 (B30-35) - E1 (B30-81)W - BR
G-R - BR
G - BR
LG - BR
P - BR
V - BRIgnition coil (ignition
signal)Idling Pulse generation (see
waveform 6)
IGF1 (B30-106) - E1 (B30-81) Y - BR Ignition coil (ignition
confirmation signal)Ignition switch ON 4.5 to 5.5 V
Idling Pulse generation (see
waveform 6)
PRG (B30-108) - E1 (B30-81) LG - BR Purge VSV Ignition switch ON 9 to 14 V
Idling Pulse generation (see
waveform 7)
SPD (A9-8) - E1 (B30-81) V - BR Speed signal from
combination meterDriving at 20 km/h (12 mph) Pulse generation (see
waveform 8)
STA (A9-48) - E1 (B30-81) LG - BR Starter signal Cranking 5.5 V or more
NSW (B30-62) - E1 (B30-81) G-R - BR Starter relay control Ignition switch ON Below 1.5 V
Cranking 6.0 V or more
STP (A9-36) - E1 (B30-81) L - BR Stop light switch Brake pedal depressed 7.5 to 14 V
Brake pedal released Below 1.5 V
ST1- (A9-35) - E1 (B30-81) GR - BR Stop light switch
(opposite to STP terminal)Ignition switch ON,
Brake pedal depressedBelow 1.5 V
Ignition switch ON,
Brake pedal released7.5 to 14 V
M+ (B30-19) - ME01 (B30-20) G - BR Throttle actuator Idling with warm engine Pulse generation (see
waveform 9)
M- (B30-18) - ME01 (B30-20) R - BR Throttle actuator Idling with warm engine Pulse generation (see
waveform 10)
FC (A9-7) - E1 (B30-81) W - BR Fuel pump control Ignition switch ON 9 to 14 V
Idling Below 1.5 V
FPR (B30-59) - E1 (B30-81) W - BR Fuel pump control Cranking 9 to 14 V
FPR (B30-59) - E1 (B30-81) W - BR Fuel pump control Idling 9 to 14 V
W (A9-24) - E1 (B30-81) R - BR MIL Ignition switch ON Below 1.5 V
Idling 9 to 14 V
TC (A9-27) - E1 (B30-81) G - BR Terminal TC of DLC3 Ignition switch ON 9 to 14 V
TACH (A9-15) - E1 (B30-81) GR - BR Engine speed Idling Pulse generation (see
waveform 11)
VPMP (A9-42) - E1 (B30-81) W - BR Vent valve (built into
canister pump module)Ignition switch ON 9 to 14 V
MPMP (A9-34) - E1 (B30-81) B - BR Leak detection pump (built
into canister pump
module)Leak detection pump OFF Below 3 V
Leak detection pump ON 9 to 14 V
VCPP (B30-75) - EPPM (B30-76) V - BR Power source for canister
pressure sensor (specific
voltage)Ignition switch ON 4.5 to 5.5 V Symbol (Terminal No.) Wiring Color Terminal Description Condition Specified Condition

2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–47
ES
KNOCK FB VAL Feedback value of knocking -
ACCEL POS #1Absolute Accelerator Pedal Position (APP)
No.1-
ACCEL POS #2 Absolute APP No. 2 -
THROTTLE POS Throttle sensor positioning -
THROTTLE POS Throttle position -
THROTTLE POS #2 Throttle sensor positioning #2 -
THROTTLE MOT Throttle motor -
O2S B1 S2
O2S B2 S2Heated oxygen sensor outputPerforming INJ VOL or A/F CONTROL
function of ACTIVE TEST enables technician
to check output voltage of sensor
AFS B1 S1
AFS B2 S1A/F sensor outputPerforming INJ VOL or A/F CONTROL
function of ACTIVE TEST enables technician
to check output voltage of sensor
TOTAL FT #1
TOTAL FT #2Total fuel trim -
SHORT FT #1
SHORT FT #2Short-term fuel trimShort-term fuel compensation used to
maintain air-fuel ratio at stoichiometric air-fuel
ratio
LONG FT #1
LONG FT #2Long-term fuel trimOverall fuel compensation carried out in long-
term to compensate a continual deviation of
short-term fuel trim from central valve
O2FT B1 S2
O2FT B2 S2Fuel trim at heated oxygen sensor -
AF FT B1 S1
AF FT B2 S1Fuel trim at A/F sensor-
AFS B1 S1
AFS B2 S1A/F sensor current-
CAT TEMP B1S1
CAT TEMP B2S1Estimated catalyst temperature (sensor 1)-
CAT TEMP B1S2
CAT TEMP B2S2Estimated catalyst temperature (sensor 2)-
S O2S B1S2
S O2S B2S2Sub heated oxygen sensor impedance
(sensor 2)-
INI COOL TEMP Engine coolant temperature at engine start -
INI INTAKE TEMP Intake air temperature at engine start -
INJ VOL Injection volume -
STARTER SIG Starter switch (STSW) signal -
PS SW Power steering signal -
PS SIGNAL Power steering signal (history)Signal status usually ON until ignition switch
turned OFF
CTP SW Closed throttle position switch -
A/C SIGNAL A/C signal -
PNP SW (NSW) Park/Neutral Position (PNP) switch signal -
ELECT LOAD SIG Electrical load signal -
STOP LIGHT SW Stop light switch -
BATTERY VOLTAGE Battery voltage -
ATM PRESSURE Atmosphere pressure -
FUEL PMP SP CTL Fuel pump speed control status -
ACIS VSVVSV for Acoustic Control Induction System
(ACIS)-
EVAP (Purge) VSV EVAP Purge VSV -
FUEL PUMP/SPD Fuel pump/speed status -LABEL
(Intelligent Tester Display)Measurement Item Diagnostic Note

2AZ-FE ENGINE MECHANICAL – CYLINDER HEADEM–57
EM
REMOVAL
1. DISCHARGE FUEL SYSTEM PRESSURE (See page
FU-9)
2. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.
3. REMOVE RADIATOR SUPPORT OPENING COVER
4. REMOVE FRONT WHEEL RH
5. REMOVE NO. 1 ENGINE UNDER COVER
6. REMOVE FRONT FENDER APRON RH
7. REMOVE NO. 1 ENGINE COVER (See page EM-22)
8. DRAIN ENGINE COOLANT (See page CO-6)
9. DRAIN ENGINE OIL (See page LU-4)
10. REMOVE AIR CLEANER CAP (See page ES-411)
11. REMOVE THROTTLE BODY (See page ES-412)
12. REMOVE FUEL DELIVERY PIPE SUB-ASSEMBLY
(See page FU-10)
13. REMOVE INTAKE MANIFOLD (See page ES-419)
14. REMOVE INTAKE MANIFOLD INSULATOR (See page
ES-420)
15. REMOVE FRONT EXHAUST PIPE (See page EX-3)
16. REMOVE OIL DIPSTICK
17. REMOVE OIL DIPSTICK GUIDE
(a) Remove the bolt and guide.
(b) Remove the O-ring from the guide.
18. REMOVE MANIFOLD STAY
(a) Remove the bolt, nut and stay.
A112218
A112193

EM–862AZ-FE ENGINE MECHANICAL – CYLINDER HEAD
EM
22. INSTALL ENGINE MOUNTING INSULATOR RH (See
page EM-41)
23. INSTALL RADIATOR RESERVOIR (See page EM-112)
24. INSTALL GENERATOR ASSEMBLY (See page CH-15)
25. INSTALL FAN AND GENERATOR V BELT (See page
EM-7)
26. INSTALL FRONT SUSPENSION MEMBER
REINFORCEMENT RH (See page EM-7)
27. CONNECT ENGINE WIRE
(a) Connect the ground cable with the bolt.
Torque: 8.4 N*m (86 kgf*cm, 74 in.*lbf)
(b) Connect the camshaft position sensor connector.
(c) Connect the engine coolant temperature sensor
connector.
(d) Connect the engine oil pressure switch connector.
(e) Connect the radio setting condenser connector.
(f) Connect the heater water inlet hose.
28. CONNECT NO. 1 RADIATOR HOSE
(a) Connect the hose to the cylinder head.
29. INSTALL CAMSHAFT TIMING OIL CONTROL VALVE
ASSEMBLY (See page ES-396)
30. INSTALL EXHAUST MANIFOLD CONVERTER SUB-
ASSEMBLY
(a) Install a new gasket onto the cylinder head.
(b) Temporarily tighten the exhaust manifold converter
with the 5 nuts.
(c) Tighten the 5 nuts in the sequence shown in the
illustration.
Torque: 37 N*m (377 kgf*cm, 27 ft.*lbf)
(d) Connect the air-fuel ratio sensor connector.
A098748E01
A114348
A112190E01
A098744E01