2005 TOYOTA AVENSIS MOTOR

054KK–23
A66714
E13
E12
E10
E9
– DIAGNOSTICSSFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
05–13
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
TERMINALS OF ECM
HINT:
Each ECM terminal’s standard normal voltage is shown in the table below.
In the table, first follow the information under ”Condition.” Look under ”Symbols (Terminals No.)” for the termi-
nals to be inspected. The standard normal voltage between the terminals is shown under ”STD Voltage.”
Use the illustration above as a reference for the ECM terminals.
Symbols (Terminals No.)Wiring ColorTerminal DescriptionConditionSTD Voltage
BATT (E9–3) – E1 (E13–5)B–Y – BR
Battery (for measuring the
battery voltage and for the
ECM memory)
Always9 to 14 V
+BM (E10–6) – ME01 (E12–3)G–Y – W–BPower source of throttle
motorAlways9 to 14 V
IGSW (E9–9) – E1 (E13–5)B–W – BRIgnition switchIgnition switch ON9 to 14 V
+B (E9–1) – E1 (E13–5)B–R – BRPower source of ECMIgnition switch ON9 to 14 V
MREL (E10–4) – E01 (E13–7)GR – W–BEFI relayIgnition switch ON9 to 14 V
VC (E13–18) – E2 (E13–28)R–W – BRPower source of sensor
(a specific voltage)Ignition switch ON4.5 to 5.5 V
VTA1 (E13–21) – E2 (E13–28)L–W – BRThrottle position sensor
(for engine control)Ignition switch ON, Accelerator ped-
al fully released0.4 to 1.0 V
VTA1 (E13–21) – E2 (E13–28)L–W – BRThrottle position sensor
(for engine control)Ignition switch ON, Accelerator ped-
al fully depressed3.2 to 4.8 V
VTA2 (E13–31) – E2 (E13–28)B–R – BR
Throttle position sensor
(for sensor malfunction
detection)Ignition switch ON, Accelerator ped-
al fully released2.1 to 3.1 V
VTA2 (E13–31) – E2 (E13–28)B–R – BR
Throttle position sensor
(for sensor malfunction
detection)Ignition switch ON, Accelerator ped-
al fully depressed4.5 to 5.0 V
VPA (E9–22) – EPA (E9–28)G – Y
Accelerator pedal position
sensor (for engine con-
trol)Ignition switch ON, Accelerator ped-
al fully released0.5 to 1.1 V
VPA (E9–22) – EPA (E9–28)G – Y
Accelerator pedal position
sensor (for engine con-
trol)Ignition switch ON, Accelerator ped-
al fully depressed2.6 to 4.5 V
VPA2 (E9–23) – EPA2 (E9–29)W – Y
Accelerator pedal position
sensor (for sensor mal-
function detection)Ignition switch ON, Accelerator ped-
al fully released1.2 to 2.0 V
VPA2 (E9–23) – EPA2 (E9–29)W – Y
Accelerator pedal position
sensor (for sensor mal-
function detection)Ignition switch ON, Accelerator ped-
al fully depressed3.4 to 5.0 V

–
DIAGNOSTICS SFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
05–31
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)DTC No.
(See Page) Memory
*1
MIL
Trouble Area
Detection Item
P0607
( 05–170 )Control Module PerformanceECM
P0617
( 05–171 )Starter Relay Circuit High
Short in park/neutral position switch circuit (MMT)
 Short in STA circuit
 Park/neutral position switch (MMT)
 ECM

P0657
( 05–170 )Actuator Supply Voltage Circuit /
OpenECM
P0705
( 05–247 )Transmission Range Sensor Cir-
cuit Malfunction (PRNDL Input)Electronic control automatic transaxle
P0710
( 05–252 )Transmission Fluid Temperature
Sensor ”A” CircuitElectronic control automatic transaxle
P0711
( 05–255 )Transmission Fluid Temperature
Sensor ”A” PerformanceElectronic control automatic transaxle
P0712
( 05–252 )Transmission Fluid Temperature
Sensor ”A” Circuit Low InputElectronic control automatic transaxle
P0713
( 05–252 )Transmission Fluid Temperature
Sensor ”A” Circuit High InputElectronic control automatic transaxle
P0717
( 05–258 )Turbine Speed Sensor Circuit No
SignalElectronic control automatic transaxle
P0724
( 05–261 )Brake Switch ”B” Circuit HighElectronic control automatic transaxle
P0741
( 05–264 )Torque Converter Clutch Sole-
noid Performance (Shift Solenoid
Valve SL)
Electronic control automatic transaxle
P0751
( 05–268 )Shift Solenoid ”A” Performance
(Shift Solenoid Valve S1)Electronic control automatic transaxle
P0756
( 05–271 )Shift Solenoid ”B” Performance
(Shift Solenoid Valve S2)Electronic control automatic transaxle
P0787
( 05–274 )Shift/Timing Solenoid Low (Shift
Solenoid Valve ST) Electronic control automatic transaxle
P0788
( 05–274 )Shift/Timing Solenoid High (Shift
Solenoid Valve ST)Electronic control automatic transaxle
P0973
( 05–277 )Shift Solenoid ”A” Control Circuit
Low (Shift Solenoid Valve S1)Electronic control automatic transaxle
P0974
( 05–277 )Shift Solenoid ”A” Control Circuit
High (Shift Solenoid Valve S1)Electronic control automatic transaxle
P0976
( 05–280 )Shift Solenoid ”B” Control Circuit
Low (Shift Solenoid Valve S2)Electronic control automatic transaxle
P0977
( 05–280 )Shift Solenoid ”B” Control Circuit
High (Shift Solenoid Valve S2)Electronic control automatic transaxle
P0998
( 05–283 )Shift Solenoid ”F” Control Circuit
Low (Shift Solenoid Valve SB)Electronic control automatic transaxle
P0999
( 05–283 )Shift Solenoid ”F” Control Circuit
High (Shift Solenoid Valve SB)Electronic control automatic transaxle
P2102
( 05–174 )Throttle Actuator Control Motor
Circuit LowOpen in throttle control actuator circuit
 Throttle actuator
 ECM

P2103
( 05–174 )Throttle Actuator Control Motor
Circuit High
Short in throttle control actuator circuit
 Throttle actuator
 Throttle valve
 Throttle body assembly
 ECM


05–32
–
DIAGNOSTICS SFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E) DTC No.
(See Page) Memory
*1
MIL
Trouble Area
Detection Item
P2111
( 05–177 )Throttle Actuator Control System
– Stuck OpenThrottle actuator
 Throttle body assembly
 Throttle valve

P2112
( 05–177 )Throttle Actuator Control System
– Stuck ClosedSame as DTC P2111
P2118
( 05–179 )Throttle Actuator Control Motor
Current Range/PerformanceOpen in ETCS power source circuit
 ETCS fuse
 ECM

P2119
( 05–182 )Throttle Actuator Control Throttle
Body Range/PerformanceElectronic throttle control system
 ECM
P2120
( 05–184 )Throttle/Pedal Position Sensor/
Switch ”D” CircuitAccelerator pedal position sensor
 ECM
P2121
( 05–192 )Throttle/Pedal Position Sensor/
Switch ”D” Circuit Range/Perfor-
manceAccelerator pedal position sensor circuit
 Accelerator pedal position sensor
 ECM

P2122
( 05–184 )Throttle/Pedal Position Sensor/
Switch ”D” Circuit Low Input
Accelerator pedal position sensor
 Open in VCP1 circuit
 Open or ground short in VPA1 circuit
 ECM

P2123
( 05–184 )Throttle/Pedal Position Sensor/
Switch ”D” Circuit High InputAccelerator pedal position sensor
 Open in EPA circuit
 ECM

P2125
( 05–184 )Throttle/Pedal Position Sensor/
Switch ”E” CircuitAccelerator pedal position sensor
 ECM
P2127
( 05–184 )Throttle/Pedal Position Sensor/
Switch ”E” Circuit Low Input
Accelerator pedal position sensor
 Open in VCP2 circuit
 Open or ground short in VPA2 circuit
 ECM

P2128
( 05–184 )Throttle/Pedal Position Sensor/
Switch ”E” Circuit High InputAccelerator pedal position sensor
 Open in EPA2 circuit
 ECM

P2135
( 05–66 )Throttle/Pedal Position Sensor/
Switch ”A”/”B” Voltage Correla-
tionVTA1 and VTA2 circuits are short–circuited
 Throttle position sensor (built into throttle body)
 ECM

P2138
( 05–184 )Throttle/Pedal Position Sensor/
Switch ”D”/”E” Voltage Correla-
tionVPA1 and VPA2 circuits are short circuited
 Accelerator pedal position sensor
 ECM

P2195 *4
( 05–74 )Oxygen Sensor Signal Stuck
Lean (Bank 1 Sensor 1)
Open or short in heated oxygen sensor circuit
 Heated oxygen sensor (Sensor 1)
 Heated oxygen sensor heater (Sensor 1)
 EFI relay
 Air induction system
 Fuel pressure
 Injector
 ECM

P2196 *4
( 05–74 )Oxygen Sensor Signal Stuck
Rich (Bank 1 Sensor 1)Same as DTC P2195
P2716
( 05–286 )Pressure Control Solenoid ”D”
Electrical (Shift Solenoid SLT)Electronic control automatic transaxle
P2769
( 05–289 )Torque Converter Clutch Sole-
noid Circuit Low (Shift Solenoid
Valve SL)
Electronic control automatic transaxle

A71015
0
Accelerator Pedal Opening Angle (deg)125
VPA1 VPA2
5
Movable Range
Usable Range
Usable Range *1
*1
Movable Range
Usable Range
*2
Accelerator pedal released (15
)
Accelerator pedal depressed
(about 100
)
Accelerator Pedal
Position Sensor
Output Voltage (V)
VPA2VPA1 EP2
VCP2
*1:
*
2:
EP1
0.8
105
VCP1*2
*2*1
– DIAGNOSTICSSFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
05–185
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
CIRCUIT DESCRIPTION
The accelerator pedal position sensor is mounted on the accelerator pedal bracket and it has the 2 sensors
to detect the accelerator position and malfunctions of the accelerator position sensor itself.
In the accelerator pedal position sensor, the voltage applied to pedal terminals VPA1 and VPA2 of the ECM
changes between 0 V and 5 V in proportion to the opening angle of the accelerator pedal. The VPA1 is a
signal to indicate the actual accelerator pedal opening angle which is used for engine control, and the VPA2
is a signal to indicate the information about the opening angle which is used for detecting a malfunction in
the sensor itself.
The ECM judges the current accelerator pedal opening angle with the signals from pedal terminals VPA1
and VPA2, and the ECM controls the throttle motor based on these signals.
HINT:
This ETCS (Electronic Throttle Control System) does not use a throttle cable.

05KAK–01
– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)05–209
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
PART AND SYSTEM NAME LIST
This reference list indicates the part names used in this manual along with their definitions.
Part and system nameDefinition
Toyota HCAC system, Hydrocarbon adsorptive Catalyst
(HCAC) system, HC adsorptive three–way catalystHC adsorptive three–way catalytic converter
Variable Valve Timing sensor, VVT sensorCamshaft position sensor
Variable valve timing system, VVT systemCamshaft timing control system
Camshaft timing oil control valve, Oil control valve OCV,
VVT, VSVCamshaft timing oil control valve
Variable timing and lift, VVTLCamshaft timing and lift control
Crankshaft position sensor ”A”Crankshaft position sensor
Engine speed sensorCrankshaft position sensor
THAIntake air temperature
Knock control moduleEngine knock control module
Knock sensorEngine knock sensor
Mass or volume air flow circuitMass air flow sensor circuit
Vacuum sensorManifold air pressure sensor
Internal control module, Control module, Engine control
ECU, PCMPower train control module
FC idleDeceleration fuel cut
Idle air control valveIdle speed control
VSV for CCV, Canister close valve VSV for canister controlEvaporative emissions canister vent valve
VSV for EVAP, Vacuum switching valve assembly No. 1,
EVAP VAV, Purge VSVEvaporative emissions canister purge valve
VSV for pressure switching valve, Bypass VSVEvaporative emission pressure switching valve
Vapor pressure sensor, EVAP pressure sensor, Evaporative
emission control system pressure sensorFuel tank pressure sensor
Charcoal canisterEvaporative emissions canister
ORVR systemOn–boad refueling vapor recovery system
Intake manifold runner controlIntake manifold tuning system
Intake manifold runner valve, IMRV, IACV (runner valve)Intake manifold tuning valve
Intake control VSVIntake manifold tuning solenoid valve
AFSAir fuel ratio sensor
O2 sensorHeater oxygen sensor
Oxygen sensor pumping current circuitOxygen sensor output signal
Oxygen sensor reference ground circuitOxygen sensor signal ground
Accel position sensorAccelerator pedal position sensor
Throttle actuator control motor, Actuator control motor, Elec-
tronic throttle motor, Throttle control motorElectronic throttle actuator
Electronic throttle control system, Throttle actuator control
systemElectronic throttle control system
Throttle/pedal position sensor, Throttle/pedal position switch,
Throttle position sensor/switchThrottle position sensor
Turbo press sensorTurbocharger pressure sensor
Turbo VSVTurbocharger pressure control solenoid valve
P/S pressure switchPower–steering pressure switch
VSV for ACMActive control engine mount
Speed sensor, Vehicle speed sensor ”A”, Speed sensor for
skid control ECUVehicle speed sensor
ATF temperature sensor, Trans. fluid temp. sensor, ATF
temperature sensor ”A”Transmission fluid temperature sensor
Electronic controlled automatic transmission, ECTElectronically controlled automatic
Intermediate shaft speed sensor ”A”Couter gear speed sensor

D30688
ECM
MPX2
MPX1 29
18 E10 11
B8
22 SNOWI14
Integration Relay
8 14
DA B E8
ECT Pattern Select SW
*1: RHD
*2: LHD 4 1 W–B
CH
CF
CA 8
11
6
W–B
IPE10 MPX1
MPX2
*1
*2
B8
(*3) Pattern Select Switch (ECT SNOW Switch)
When the ECT SNOW switch is pushed, the switch contact is made and the ECT SNOW mode is selected.
To cancel the ECT SNOW mode, push the ECT SNOW switch once again. The ECT SNOW mode is automatical-
ly cancelledout when the ignition switch is turned ”OFF”.
*3
Instrument Panel J/B
– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)05–297
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
PATTERN SELECT SWITCH CIRCUIT
CIRCUIT DESCRIPTION
Integration relay receives pattern select switch information, and sends it through the multiplex communica-
tion system to the ECM.
ECT SNOW is the system that operates the throttle motor to control engine output to reduce skidding of the
driving wheels, guarantee takeoff acceleration, driving straightness and turning stability.
WIRING DIAGRAM
05L2N–01

A93668
A64026
B06777
A76720
A76721
14–34– ENGINE MECHANICALCYLINDER HEAD GASKET (1ZZ–FE/3ZZ–FE)(From
February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
23. REMOVE INTAKE MANIFOLD
(a) Disconnect the throttle motor connector.
(b) Disconnect the vacuum hose from water by–pass pipe
No. 1.
(c) Remove the 4 bolts, 2 nuts and 2 wire brackets.
(d) Remove the intake manifold and throttle body assembly.
(e) Remove the gasket from the intake manifold and the
throttle body assembly.
24. REMOVE OIL LEVEL GAGE SUB–ASSY
(a) Remove the oil level gage from the oil level gage guide.
25. REMOVE OIL LEVEL GAGE GUIDE
(a) Disconnect the crankshaft position sensor clamp.
(b) Remove the bolt and oil level gage guide.
26. SEPARATE WATER BY–PASS PIPE NO.1
(a) Remove the 2 bolts which are used to secure the water
by–pass pipe.
27. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE
ASSY
(a) Remove the bolt and camshaft timing oil control valve.
28. SEPARATE EXHAUST PIPE ASSY FRONT
(a) Remove the 2 bolts and 2 compression springs which are
used to secure the front side of exhaust pipe.
(b) Remove the gasket.
29. REMOVE MANIFOLD STAY
(a) Remove the 3 bolts and manifold stay.
30. REMOVE MANIFOLD STAY NO.2
(a) Remove the 3 bolts and manifold stay No. 2.

B06777
A64026
A93668
A64023
A76713
– ENGINE MECHANICALCYLINDER HEAD GASKET (1ZZ–FE/3ZZ–FE)(From
February, 2004)14–45
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
70. INSTALL CAMSHAFT TIMING OIL CONTROL VALVE
ASSY
(a) Apply a light coat of engine oil on a new O–ring, then
install it onto the camshaft timing oil control valve.
(b) Install the camshaft timing oil control valve with the bolt.
Torque: 9.0 N⋅m (92 kgf⋅cm, 80 in.⋅lbf)
71. INSTALL WATER BY–PASS PIPE NO.1
(a) Install a new gasket and water by–pass pipe with the 2
nuts and 2 bolts.
Torque: 9.0 N⋅m (92 kgf⋅cm, 80 in.⋅lbf)
72. INSTALL OIL LEVEL GAGE GUIDE
(a) Apply a light coat of engine oil on a new O–ring, then
install it onto the oil level gage guide.
(b) Install the oil level gage guide with the bolt.
Torque: 13 N⋅m (133 kgf⋅cm, 10 ft⋅lbf)
73. INSTALL INTAKE MANIFOLD
(a) Install a new gasket onto the intake manifold.
(b) Install the intake manifold and the throttle body assembly
with the 2 brackets, 4 bolts and 2 nuts.
Torque: 30 N⋅m (306 kgf⋅cm, 22 ft⋅lbf)
(c) Connect the vacuum hose to water by–pass pipe No. 1.
(d) Connect the throttle motor connector.
74. INSTALL IGNITION COIL ASSY
(a) Install the 4 ignition coils with the 4 bolts.
Torque: 9.0 N⋅m (92 kgf⋅cm, 80 in.⋅lbf)
(b) Install the engine wire with the 2 nuts.
Torque: 9.0 N⋅m (92 kgf⋅cm, 80 in.⋅lbf)
75. INSTALL GENERATOR ASSY
(See Pub. No. RM1018E on page 19–7)