2005 TOYOTA AVENSIS wiring

A66060ECM ConnectorEPA2 (
−) VPA (+)
VPA2 (+)
EPA (−)
E9
−
ENGINE CONTROL SYSTEM ECD SYSTEM (1CD−FTV)(From September, 2003)
10 −21
AVENSIS Supplement (RM1045E)
3. I NSPECT ACCELERATO R PEDAL PO SI TI O N SEN-
SOR
(a) If you have the hand −held tester:
Inspect the accelerator pedal position sensor.
(1) Connect the hand −held tester to the DLC3.
(2) Turn the ignition switch to ON.
(b) Select the item ”DIAGNOSIS / OBD / MOBD / DATE LIST” on the hand −held tester.
(1) Check that the voltage (ACCEL POS) of DATA LIST shows the standard value.
Accelerator pedal released: 0.5 to 1.1 V
Accelerator pedal depressed: 3.0 to 4.6 V
(2) Check that the voltage (ACCEL POS #2) of DATA LIST shows the standard value.
Accelerator pedal released: 0.9 to 2.3 V
Accelerator pedal depressed: 3.4 to 5.0 V
If the result is not as specified, check the accelerator pedal posi-
tion sensor (see page 10 −22), wiring and ECM.
(c) If you have no hand −held tester:
Inspect the accelerator pedal position sensor.
(1) Turn the ignition switch to ON.
(2) Measure the voltage between the specified termi- nals of the E9 ECM connector.
Accelerator Pedal PositionTester ConnectionSpecified ConditionTester ConnectionSpecified Condition
ReleasedVPA (E9 −22)
− EPA (E9 −28)0.5 to 1.1 VVPA2 (E9 −23)
− EPA2 (E9 −29)0.9 to 2.3 V
DepressedVPA (E9 −22)
− EPA (E9 −28)3.0 to 4.6 VVPA2 (E9 −23)
− EPA2 (E9 −29)3.4 to 5.0 V
If the result is not as specified, check the accelerator pedal posi-
tion sensor (see page 10 −22), wiring and ECM.

A84696zNon−reusable part
N·m (kgf·cm, ft·lbf) : Specified torqueThrottle Body AssyThrottle Control Motor
Connector
zThrottle Body Gasket
Water By−pass Hose
No. 2
Water By−pass Hose
No. 1
9.0 (90, 80 in.
lbf)
x4
x4
21 (210, 15)Throttle Body Bracket
8.4 (86, 74 in.
lbf)
Ground TerminalWiring Harness
Protector
8.4 (86, 74 in.
lbf)
− ENGINE MECHANICALCYLINDER HEAD GASKET (2AZ−FSE)
14−71
AVENSIS Supplement (RM1045E)

A84696zNon−reusable part
N·m (kgf·cm, ft·lbf) : Specified torqueThrottle Body AssyThrottle Control Motor
Connector
zThrottle Body Gasket
Water By−pass Hose
No. 2
Water By−pass Hose
No. 1
9.0 (90, 80 in.
lbf)
x4
x4
21 (210, 15)Throttle Body Bracket
8.4 (86, 74 in.
lbf)
Ground TerminalWiring Harness
Protector
8.4 (86, 74 in.
lbf)
− ENGINE MECHANICALPARTIAL ENGINE ASSY (2AZ−FSE)
14−17
AVENSIS Supplement (RM1045E)

190V6−01
Z11580A80938A82936
Type A:
Type B:
BlueWhite
Red Green DarkClear or
light yellow
B00543
B00540
19−6
− STARTING & CHARGINGCHARGING SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM1045E)
ON−VEHICLE INSPECTION
1. INSPECT BATTERY (EXCEPT MAINTENANCE−FREE
BATTERY)
(a) Check the battery electrolyte level.
(1) Check the electrolyte quantity of each cell.
If the electrolyte quantity is below the recommended amount,
add distilled water.
(b) Check the indicator as shown in the illustration.
HINT:
Indicator colorConditionType AType BCondition
GreenBlueOK
DarkWhiteCharging necessary
Clear or light yellowRedReplace
2. INSPECT BATTERY TERMINALS, FUSIBLE LINK AND FUSES
(a) Visually check the battery terminals.
(1) Check that the battery terminals are not loosened or corroded.
(b) Visually check the fusible link and fuses.
(1) Check that there is continuity of the fusible links, high−current fuses and regular fuses.
3. INSPECT V−RIBBED BELT
(a) Visually check the belt for excessive wear, frayed cords
etc.
SIf any defects are found, replace the v−ribbed belt.
SCracks on the rib side of the belt are considered ac-
ceptable.
If the belt has chunks missing from the ribs, it should
be replaced.
(b) Check that the belt fits properly in the ribbed grooves.
Confirm that the belt has not slipped out of the groove on the
bottom of the pulley by hand.
4. VISUALLY CHECK GENERATOR WIRING
(a) Check that the wiring is in good condition.
5. LISTEN FOR ABNORMAL NOISES FROM GENERATOR
(a) Check that no abnormal noise is heard from the generator while the engine is running.
6. INSPECT CHARGE WARNING LIGHT CIRCUIT

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

05–14
–
DIAGNOSTICS SFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E) Symbols (Terminals No.)
STD Voltage
Condition
Terminal Description
Wiring Color
VCPA (E9–26) – EPA (E9–28)B – Y
Power source of acceler-
ator pedal position sensor
(for VPA)
Ignition switch ON4.5 to 5.0 V
VCP2 (E9–27) – EPA2 (E9–29)B – Y
Power source of acceler-
ator pedal position sensor
(for VPA2)
Ignition switch ON4.5 to 5.0 V
VG (E13–30) – EVG (E13–29)G – L–YMass air flow meterIdling, Shift position P or N, A/C
switch OFF0.5 to 3.0 V
THA (E13–20) – E2 (E13–28)G–R – BRIntake air temperature
sensorIdling, Intake air temperature 20
C
(68
F)0.5 to 3.4 V
THW (E13–19) – E2 (E13–28)B–W – BREngine coolant tempera-
ture sensorIdling, Engine coolant temperature
80
 
\b0.2 to 1.0 V
#10 (E13–1) – E01 (E13–7)
#20 (E13–2) – E01 (E13–7)
#30 (E13–3) – E01 (E13–7)
#40 (E13–4) – E01 (E13–7)B–R – W–B
Y – W–B
W – W–B
B – W–B
InjectorIgnition switch ON9 to 14 V
#10 (E13–1) – E01 (E13–7)
#20 (E13–2) – E01 (E13–7)
#30 (E13–3) – E01 (E13–7)
#40 (E13–4) – E01 (E13–7)B–R – W–B Y – W–B
W – W–B
B – W–B
InjectorIdlingPulse generation
( See page 05– 118 )
IGT1 (E13–8) – E1 (E13–5)
IGT2 (E13–9) – E1 (E13–5)
IGT3 (E13–10) – E1 (E13–5)
IGT4 (E13–11) – E1 (E13–5)R–W – BR
P – BR
LG–B – BR
L–Y – BR
Ignition coil with igniter
(ignition signal)IdlingPulse generation
( See page 05–143 )
IGF (E13–24) – E1 (E13–5)W–R – BR
Ignition coil with igniter
(ignition confirmation sig-
nal)
Ignition switch ON4.5 to 5.5 V
IGF (E13–24) – E1 (E13–5)W–R – BR
Ignition coil with igniter
(ignition confirmation sig-
nal)
IdlingPulse generation
( See page 05–143 )
G2+ (E13–26) – NE– (E13–34)W – RCamshaft position sensorIdlingPulse generation
( See page 05–140 )
NE+ (E13–27) – NE– (E13–34)G – RCrankshaft position sen-
sorIdlingPulse generation
( See page 05–136 )
FC (E10–16) – E01 (E13–7)G–Y – W–BFuel pump controlIgnition switch ON9 to 14 V
M+ (E12–5) – E01 (E13–7)
M– (E12–4) – E01 (E13–7)B – W–B
W – W–BThrottle actuatorIdlingPulse generation
OX1A (E12–22) – E2 (E13–28)B – BRHeated oxygen sensor
Maintain engine speed at 2,500 rpm
for 2 minutes after warming up the
sensorPulse generation
( See page 05–74 )
OX1B (E10–23)
– E2– (E13–28)B – BRHeated oxygen sensor
Maintain engine speed at 2,500 rpm
for 2 minutes after warming up the
sensorPulse generation
( See page 05–100 )
HT1A (E12–6) – E03 (E12–7)
HT1B (E9–7) – E03 (E12–7)Y – W–B
P – W–BHeated oxygen sensor
heaterIdlingBelow 3.0 V
HT1A (E12–6) – E03 (E12–7)
HT1B (E9–7) – E03 (E12–7)Y – W–B
P – W–BHeated oxygen sensor
heaterIgnition switch ON9 to 14 V
KNK1 (E12–1) – EKNK (E12–2)B – WKnock sensorMaintain engine speed at 4,000 rpm
after warming up the enginePulse generation
( See page 05–132 )
OCV+ (E13–14)
– OCV– (E13–13)W–G – Y–BCamshaft timing oil con-
trol valve (OCV)Ignition switch ONPulse generation
( See page 05–34 )
EVP1 (E12–19) – E01 (E13–7)W–G – W–BEVAP VSVIgnition switch ON9 to 14 V
EVP1 (E12–19) – E01 (E13–7)W–G – W–BEVAP VSVIdlingPulse generation
STA (E13–12) – E1 (E13–5)B–Y – BRStarter signalShift position N, Ignition switch
START6.0 V or more

–
DIAGNOSTICS SFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
05–15
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)Symbols (Terminals No.)
STD Voltage
Condition
Terminal Description
Wiring Color
STP (E10–19) – E1 (E13–5)G–W – BRStop lamp switchBrake pedal depressed9 to 14 V
STP (E10–19) – E1 (E13–5)G–W – BRStop lamp switchBrake pedal releasedBelow 1.5 V
ST1– (E10–12) – E1 (E13–5)G–W – BRStop lamp switchIgnition switch ON, Brake pedal de-
pressedBelow 1.5 V
ST1– (E10–12) – E1 (E13–5)G–W – BRStop lamp switchIgnition switch ON, Brake pedal re-
leased7.5 to 14 V
W (E9–11) – E01 (E13–7)W – W–BMILIdling9 to 14 V
W (E9–11) – E01 (E13–7)W – W–BMILIgnition switch ONBelow 3.0 V
TACH (E10–3) – E1 (E13–5)GR–R – BREngine speedIdlingPulse generation
SPD (E10–17) – E01 (E13–7)V–W – W–BSpeed signal from com-
bination meterIgnition switch ON, Rotate driving
wheel slowlyPulse generation
( See page 05–158 )
TC (E9–20) – E1 (E13–5)W–L – BRTerminal TC of DLC3Ignition switch ON9 to 14 V
SIL (E10–15) – E1 (E13–5)W–G – BRTerminal SIL of DLC3Connect the intelligent tester ll to
the DLC3Pulse generation
ELS (E9–12) – E1 (E13–5)G – BRElectric loadTaillamp switch OFF0 to 1.5 V
ELS (E9–12) – E1 (E13–5)G – BRElectric loadTaillamp switch ON9 to 14 V
F/PS (E9–14) – E1 (E13–5)LG–B – BRAirbag sensor assemblyIgnition switch ONBelow 1.5 V

05–106
–
DIAGNOSTICS SFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
DTC P0171 SYSTEM TOO LEAN (BANK 1)
DTC P0172 SYSTEM TOO RICH (BANK 1)
CIRCUIT DESCRIPTION
The fuel trim is related to the feedback compensation value, not to the bas\
ic injection time. The fuel trim in-
cludes the short–term fuel trim and the long–term fuel trim.
The short–term fuel trim is the short–term fuel compensation used to \
maintain the air–fuel ratio at its ideal
theoretical value. The signal from the heated oxygen sensor indicates whether the air–fuel r\
atio is rich or
lean compared to the ideal theoretical value, triggering a reduction in the \
fuel volume if the air–fuel ratio is
rich, and an increase in the fuel volume if it is lean.
The long–term fuel trim is the overall fuel compensation in order to bal\
ance the short–term fuel trim for a
continual deviation from the central value by individual engine differences, operating environment and age
deterioration.
If both the short–term fuel trim and the long–term fuel trim are l\
ean or rich beyond a standard level, it is de-
tected as a malfunction in the SFI system. The ECM illuminates the MIL and the\
DTC is set.
DTC No.DTC Detection ConditionTrouble Area
P0171
When air–fuel ratio feedback is stable after warming up engine,
fuel trim is considerably in error on lean side
(2 trip detection logic)
 Air induction system
 Injector blockage
 Mass air flow meter
 Engine coolant temperature sensor
 Fuel pressure
 Gas leakage in exhaust system
 Open or short in heated oxygen sensor (sensor 1) circuit
 Heated oxygen sensor (sensor 1)
 PCV valve and hose
 PCV hose connection
 ECM
P0172
When air–fuel ratio feedback is stable after warming up engine,
fuel trim is considerably in error on rich side
(2 trip detection logic)
Injector leakage or blockage
 Mass air flow meter
 Engine coolant temperature sensor
 Ignition system
 Fuel pressure
 Gas leakage in exhaust system
 Open or short in heated oxygen sensor (sensor 1) circuit
 Heated oxygen sensor (sensor 1)
 ECM
HINT:
When DTC P0171 is set, the actual air–fuel ratio is lean. When DTC P0172 is set, the actual air–fuel\

ratio is rich.
If the vehicle runs out of fuel, the air–fuel ratio is lean and DTC P01\
71 may be set. The MIL then illumi-
nates.
If the total of the short–term fuel trim value and long–term fuel trim value is within
20 %, the system
is functioning normally.
WIRING DIAGRAM
Refer to DTC P0130 on page 05–74.
05KO5–02