2003 TOYOTA AVENSIS oxygen

±
INTRODUCTION TERMS (1ZZ±FE/3ZZ±FE)
01±13
1ZZ±FE,3ZZ±FE ENGINE REPAIR MANUAL
(RM923E)
HO2S
Heated Oxygen SensorHeated Oxygen Sensor (HO2S)
IACIdle Air ControlIdle Speed Control (ISC)
IATIntake Air TemperatureIntake or Inlet Air Temperature
ICMIgnition Control Module±
IFIIndirect Fuel InjectionIndirect Injection (IDL)
IFSInertia Fuel±Shutoff±
ISCIdle Speed Control±
KSKnock SensorKnock Sensor
MAFMass Air FlowAir Flow Meter
MAPManifold Absolute PressureManifold Pressure
Intake Vacuum
MCMixture Control
Electric Bleed Air Control Valve (EBCV)
Mixture Control Valve (MCV)
Electric Air Control Valve (EACV)
MDPManifold Differential Pressure±
MFIMultiport Fuel InjectionElectronic Fuel Injection (EFI)
MILMalfunction Indicator LampCheck Engine Lamp
MSTManifold Surface Temperature±
MVZManifold Vacuum Zone±
NVRAMNon±Volatile Random Access Memory±
O2SOxygen SensorOxygen Sensor, O2 Sensor (O2S)
OBDOn±Board DiagnosticOn±Board Diagnostic System (OBD)
OCOxidation Catalytic ConverterOxidation Catalyst Convert (OC), CCo
OPOpen LoopOpen Loop
PAIRPulsed Secondary Air InjectionAir Suction (AS)
PCMPowertrain Control Module±
PNPPark/Neutral Position±
PROMProgrammable Read Only Memory±
PSPPower Steering Pressure±
PTOXPeriodic Trap OxidizerDiesel Particulate Filter (DPF)
Diesel Particulate Trap (DPT)
RAMRandom Access MemoryRandom Access Memory (RAM)
RMRelay Module±
ROMRead Only MemoryRead Only Memory (ROM)
RPMEngine SpeedEngine Speed
SCSuperchargerSupercharger
SCBSupercharger BypassE±ABV
SFISequential Multiport Fuel InjectionElectronic Fuel Injection (EFI), Sequential Injection
SPLSmoke Puff Limiter±
SRIService Reminder Indicator±
SRTSystem Readiness Test±
STScan Tool±
TBThrottle BodyThrottle Body
TBIThrottle Body Fuel InjectionSingle Point Injection
Central Fuel Injection (Ci)
TCTurbochargerTurbocharger
TCCTorque Converter ClutchTorque Converter
http://vnx.su

190NK±01
A78515
A78516
A77903
(a)
(a)
(b)
(b)
(b)
A77904
(f)
(f)
(e)
(d)
Terminal Cap
19±20
±
STARTING & CHARGINGGENERATOR ASSY(1AZ±FE/1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
GENERATOR ASSY(1AZ±FE/1AZ±FSE)
REPLACEMENT
1.REMOVE ENGINE UNDER COVER LH
(a)Remove the 6 screws and 5 clips, and then remove the engine under cover.
2.REMOVE ENGINE UNDER COVER RH
(a)Remove the 6 screws and the 3 clips, and then remove the engine under cover.
3.REMOVE RADIATOR SUPPORT OPENING COVER (See page 10±26)
4. REMOVE ENGINE ROOM COVER SIDE (See page 10±26)
5. REMOVE FAN AND GENERATOR V BELT SST 09249±63010
HINT:

1AZ±FE: 14±105

1AZ±FSE: 14±185
6. REMOVE GENERATOR ASSY
(a) Disconnect the 2 heated oxygen sensor connectors. (1AZ±FE (Unleaded Gasoline) or 1AZ±FSE)
(b) Remove the 2 connector clamps of the heated oxygen sensor and the wire harness clamp.
(1AZ±FE (Unleaded Gasoline) or 1AZ±FSE)
(c) Remove the terminal cap.
(d) Remove the nut and disconnect the generator wire.
(e) Disconnect the generator connector.
(f) Remove the 2 wire harness clamps.
http://vnx.su

A77905
A77906
A77905
A
B
±
STARTING & CHARGING GENERATOR ASSY (1AZ±FE/1AZ±FSE)
19±21
AVENSIS REPAIR MANUAL (RM1018E)
(g) Remove the 2 bolts, and then remove the generator.
(h) Remove the bolt, and then remove the wire harness
clamp bracket.
7. INSTALL GENERATOR ASSY
(a) Install the wire harness clamp bracket wire the bolt. Torque: 8.4 N
m (86 kgf
cm, 74 in.
lbf)
(b) Install the generator the 2 bolts. Torque:
52 N
m (530 kgf
cm, 38 ft
lbf) for bolt A
21 N
m (214 kgf
cm, 16 ft
lbf) for bolt B
(c) Install the 2 wire harness clamps.
(d) Connect the generator connector.
(e) Install the generator wire with the nut. Torque: 9.8 N
m (100 kgf
cm, 7 ft
lbf)
(f) Install the terminal cap.
(g) Install the 2 connector clamps of the heated oxygen sen- sor and the wire harness clamp.
(1AZ±FE (Unleaded Gasoline) or 1AZ±FSE)
(h) Connect the 2 heated oxygen sensor connectors. (1AZ±FE (Unleaded Gasoline) or 1AZ±FSE)
8. INSTALL FAN AND GENERATOR V BELT
SST 09249±63010
HINT:

1AZ±FE: 14±105

1AZ±FSE: 14±185
9. INSTALL ENGINE ROOM COVER SIDE
10. INSTALL RADIATOR SUPPORT OPENING COVER
11. INSTALL ENGINE UNDER COVER RH
12. INSTALL ENGINE UNDER COVER LH
http://vnx.su

38AVENSIS (EWD526E)
G ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment
[LHD : 1AZ–FSE]
A5
F6
C6
A10
H2
H6
F11
F9
(*1)
(*2) *1:w/ HID
*2:w/o HID
F10
F2
E4
A6
A4
E5
F5
B1
H1
H5
E2
F7
F8
H9C2H10F16H7C1H8B3B2F13F12
H12A12A3C3A11H3F4H4H11A1A2E1A9F3F1
C5
(A/T)
(*1)
(*2)
(M/T)
A 1 A/C Ambient Temp. Sensor
A 2 A/C Condenser Fan Motor
A 3 A/C Pressure Sensor
A 4 ABS Speed Sensor Front LH
A 5 ABS Speed Sensor Front RH
A 6 Air Flow Meter
A 9 Airbag Sensor Front LH
A 10 Airbag Sensor Front RH
A 11 Alternator
A 12 Alternator
B 1 Back–Up Light SW
B 2 Brake Booster Pressure Sensor
B 3 Brake Fluid Level Warning SW
C 1 Camshaft Position Sensor
C 2 Camshaft Timing Oil Control Valve
C 3 Compressor Assembly
C 5 Counter Gear Speed Sensor
C 6 Crankshaft Position Sensor
E 1 ECT Solenoid
E 2 EFI Water Temp. Sensor
E 4 Electronic Driver Unit
E 5 Electronic Driver Unit
F 1 Front Clearance Light LH
F 2 Front Clearance Light RH
F 3 Front Fog Light LH F 4 Front Fog Light RH
F 5 Front Side Turn Signal Light LH
F 6 Front Side Turn Signal Light RH
F 7 Front Turn Signal Light LH
Headlight Control ECU LH
F 8 Front Turn Signal Light LH Headlight LH (Low)
F 9 Front Turn Signal Light RH Headlight Control ECU RH
F 10 Front Turn Signal Light RH Headlight RH (Low)
F 11 Front Washer Motor
F 12 Front Window Deicer
F 13 Front Wiper Motor
F 16 Fuel Pressure Sensor
H 1 Headlight Beam Level Control Actuator LH
H 2 Headlight Beam Level Control Actuator RH
H 3 Headlight Cleaner Control Relay
H 4 Headlight Cleaner Motor
H 5 Headlight LH (High)
H 6 Headlight RH (High)
H 7 Heated Oxygen Sensor (Bank 1 Sensor 1)
H 8 Heated Oxygen Sensor (Bank 1 Sensor 2)
H 9 Heated Oxygen Sensor (Bank 2 Sensor 1)
H 10 Heated Oxygen Sensor (Bank 2 Sensor 2)
H 11 Horn LH
H 12 Horn RH
http://vnx.su

40AVENSIS (EWD526E)
G ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment
[LHD : 1AZ
–FE]
A5
F6
C6
A10
H2
H6
F11
F9(*1)
(*2) *1:w/ HID
*2:w/o HID
F10
F2
F5
A6
A4
B1
H1
E2
H5
F7
F8
A8C2H10A7C1H8B3F13F12
H12A12A3C3A11H3F4H4H11A1A2E1A9F3F1
C5
(A/T)
(*1)
(*2)
(M/T)
A 1 A/C Ambient Temp. Sensor
A 2 A/C Condenser Fan Motor
A 3 A/C Pressure Sensor
A 4 ABS Speed Sensor Front LH
A 5 ABS Speed Sensor Front RH
A 6 Air Flow Meter
A 7 Air Fuel Ratio Sensor (Bank 1 Sensor 1)
A 8 Air Fuel Ratio Sensor (Bank 2 Sensor 1)
A 9 Airbag Sensor Front LH
A 10 Airbag Sensor Front RH
A 11 Alternator
A 12 Alternator
B 1 Back–Up Light SW
B 3 Brake Fluid Level Warning SW
C 1 Camshaft Position Sensor
C 2 Camshaft Timing Oil Control Valve
C 3 Compressor Assembly
C 5 Counter Gear Speed Sensor
C 6 Crankshaft Position Sensor
E 1 ECT Solenoid
E 2 EFI Water Temp. Sensor
F 1 Front Clearance Light LH
F 2 Front Clearance Light RH F 3 Front Fog Light LH
F 4 Front Fog Light RH
F 5 Front Side Turn Signal Light LH
F 6 Front Side Turn Signal Light RH
F 7 Front Turn Signal Light LH
Headlight Control ECU LH
F 8 Front Turn Signal Light LH Headlight LH (Low)
F 9 Front Turn Signal Light RH Headlight Control ECU RH
F 10 Front Turn Signal Light RH Headlight RH (Low)
F 11 Front Washer Motor
F 12 Front Window Deicer
F 13 Front Wiper Motor
H 1 Headlight Beam Level Control Actuator LH
H 2 Headlight Beam Level Control Actuator RH
H 3 Headlight Cleaner Control Relay
H 4 Headlight Cleaner Motor
H 5 Headlight LH (High)
H 6 Headlight RH (High)
H 8 Heated Oxygen Sensor (Bank 1 Sensor 2)
H 10 Heated Oxygen Sensor (Bank 2 Sensor 2)
H 11 Horn LH
H 12 Horn RH
http://vnx.su

42AVENSIS (EWD526E)
G ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment
[LHD : 1ZZ–FE, 3ZZ–FE]
A5
F6
A12
A10
H2
H6
F11
F9
(*1)
(*2) *1:w/ HID
*2:w/o HID
F10
F2
F5
A6
A4
E2
B1
H1
H5
F7
F8
C2C6C1A11H7B3F13F12
A1H12A3C3H3F4H4H11E1A9F3F1
(*1)
(*2)
A 1 A/C Ambient Temp. Sensor
A 3 A/C Pressure Sensor
A 4 ABS Speed Sensor Front LH
A 5 ABS Speed Sensor Front RH
A 6 Air Flow Meter
A 9 Airbag Sensor Front LH
A 10 Airbag Sensor Front RH
A 11 Alternator
A 12 Alternator
B 1 Back–Up Light SW
B 3 Brake Fluid Level Warning SW
C 1 Camshaft Position Sensor
C 2 Camshaft Timing Oil Control Valve
C 3 Compressor Assembly
C 6 Crankshaft Position Sensor
E 1 ECT Solenoid
E 2 EFI Water Temp. Sensor
F 1 Front Clearance Light LH
F 2 Front Clearance Light RH
F 3 Front Fog Light LH
F 4 Front Fog Light RH
F 5 Front Side Turn Signal Light LH
F 6 Front Side Turn Signal Light RH
F 7 Front Turn Signal Light LH
Headlight Control ECU LH
F 8 Front Turn Signal Light LH
Headlight LH (Low)
F 9 Front Turn Signal Light RH Headlight Control ECU RH
F 10 Front Turn Signal Light RH
Headlight RH (Low)
F 11 Front Washer Motor
F 12 Front Window Deicer
F 13 Front Wiper Motor
H 1 Headlight Beam Level Control Actuator LH
H 2 Headlight Beam Level Control Actuator RH
H 3 Headlight Cleaner Control Relay
H 4 Headlight Cleaner Motor
H 5 Headlight LH (High)
H 6 Headlight RH (High)
H 7 Heated Oxygen Sensor (Bank 1 Sensor 1)
H 11 Horn LH
H 12 Horn RH
http://vnx.su

58AVENSIS (EWD526E)
G ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment
[RHD : 1AZ–FSE]
A5
F6
C6
A10
A11
H2
H6
F11
F9
(*1)
(*2) *1:w/ HID
*2:w/o HID
F10
F2
E4
A6
A4
E5
F5
B1
H1
E2
H5
F7
F8
F13B3C2B2H9F16H10C1H7H8
A1E6H12A12C3H3F4H4A2H11A3E1A9F3F1
C5
(A/T)
(*1)
(*2)
(M/T)
A 1 A/C Ambient Temp. Sensor
A 2 A/C Condenser Fan Motor
A 3 A/C Pressure Sensor
A 4 ABS Speed Sensor Front LH
A 5 ABS Speed Sensor Front RH
A 6 Air Flow Meter
A 9 Airbag Sensor Front LH
A 10 Airbag Sensor Front RH
A 11 Alternator
A 12 Alternator
B 1 Back–Up Light SW
B 2 Brake Booster Pressure Sensor
B 3 Brake Fluid Level Warning SW
C 1 Camshaft Position Sensor
C 2 Camshaft Timing Oil Control Valve
C 3 Compressor Assembly
C 5 Counter Gear Speed Sensor
C 6 Crankshaft Position Sensor
E 1 ECT Solenoid
E 2 EFI Water Temp. Sensor
E 4 Electronic Driver Unit
E 5 Electronic Driver Unit
E 6 Engine Hood Courtesy SW
F 1 Front Clearance Light LH
F 2 Front Clearance Light RH F 3 Front Fog Light LH
F 4 Front Fog Light RH
F 5 Front Side Turn Signal Light LH
F 6 Front Side Turn Signal Light RH
F 7 Front Turn Signal Light LH
Headlight Control ECU LH
F 8 Front Turn Signal Light LH Headlight LH (Low)
F 9 Front Turn Signal Light RH Headlight Control ECU RH
F 10 Front Turn Signal Light RH
Headlight RH (Low)
F 11 Front Washer Motor
F 13 Front Wiper Motor
F 16 Fuel Pressure Sensor
H 1 Headlight Beam Level Control Actuator LH
H 2 Headlight Beam Level Control Actuator RH
H 3 Headlight Cleaner Control Relay
H 4 Headlight Cleaner Motor
H 5 Headlight LH (High)
H 6 Headlight RH (High)
H 7 Heated Oxygen Sensor (Bank 1 Sensor 1)
H 8 Heated Oxygen Sensor (Bank 1 Sensor 2)
H 9 Heated Oxygen Sensor (Bank 2 Sensor 1)
H 10 Heated Oxygen Sensor (Bank 2 Sensor 2)
H 11 Horn LH
H 12 Horn RH
http://vnx.su

62AVENSIS (EWD526E)
G ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment
[RHD : 1ZZ–FE, 3ZZ–FE]
A5
F6
A12
A10
H2
H6
F11
F9
(*1)
(*2) *1:w/ HID
*2:w/o HID
F10
F2
F5
A4
A6
B1
H1
H5
F7
F8
C2C6F13B3C1A11H7E2
A1E6H12C3H3F4H4H11A3E1A9F3F1
(*1)
(*2)
A 1 A/C Ambient Temp. Sensor
A 3 A/C Pressure Sensor
A 4 ABS Speed Sensor Front LH
A 5 ABS Speed Sensor Front RH
A 6 Air Flow Meter
A 9 Airbag Sensor Front LH
A 10 Airbag Sensor Front RH
A 11 Alternator
A 12 Alternator
B 1 Back–Up Light SW
B 3 Brake Fluid Level Warning SW
C 1 Camshaft Position Sensor
C 2 Camshaft Timing Oil Control Valve
C 3 Compressor Assembly
C 6 Crankshaft Position Sensor
E 1 ECT Solenoid
E 2 EFI Water Temp. Sensor
E 6 Engine Hood Courtesy SW
F 1 Front Clearance Light LH
F 2 Front Clearance Light RH
F 3 Front Fog Light LH
F 4 Front Fog Light RH
F 5 Front Side Turn Signal Light LH
F 6 Front Side Turn Signal Light RH
F 7 Front Turn Signal Light LH
Headlight Control ECU LH
F 8 Front Turn Signal Light LH Headlight LH (Low)
F 9 Front Turn Signal Light RH Headlight Control ECU RH
F 10 Front Turn Signal Light RH Headlight RH (Low)
F 11 Front Washer Motor
F 13 Front Wiper Motor
H 1 Headlight Beam Level Control Actuator LH
H 2 Headlight Beam Level Control Actuator RH
H 3 Headlight Cleaner Control Relay
H 4 Headlight Cleaner Motor
H 5 Headlight LH (High)
H 6 Headlight RH (High)
H 7 Heated Oxygen Sensor (Bank 1 Sensor 1)
H 11 Horn LH
H 12 Horn RH
http://vnx.su