2005 TOYOTA AVENSIS wiring

A76878
A20
Accelerator pedal
Position Sensor
VCP16 (LHD)
E926ECM
VCPA B
4 (RHD)
(LHD)B
(LHD) 5
IG2
B
(RHD)
VPA15 (LHD)
E922
VPA G
5 (RHD)
(LHD)G
(LHD) 6
IG2
G
(RHD)
EP13 (LHD)
E928
EPA Y
1(RHD)
(LHD)Y
(LHD) 1
IG2
Y
(RHD)
VCP24 (LHD)
E927
VCP2 B
6 (RHD)
(LHD)B
(LHD) 7
IG2
B
(RHD)
VPA22 (LHD)
E923
VPA2 W
2 (RHD)
(LHD)W
(LHD) 2
IG2
W
(RHD)
EP21(LHD)
E929
EPA2 Y
3 (RHD)
(LHD)Y
(LHD) 3
IG2
Y
(RHD)
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
05−227
AVENSIS Supplement (RM1045E)
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
Read freeze frame data usingthe hand−held tester. Freeze frame data records the engine conditions when
a malfunction is detected. When troubleshooting, freeze frame data can help determine if the vehicle was
running or stopped, if the engine was warmed up or not, if the air−fuel ratio was lean or rich, and other data
from the time the malfunction occurred.

A76877
ECM
+BM
FL MAINTHROTTLE Engine Room J/B No.1
Engine Room R/B No.1
E10
IE2 1A 4B15
2 Engine Room J/B No. 4
6
B−G
Battery4A1
B−G
1 1
1G−RG−Y
A82233
THROTTLE Fuse Engine Room R/B No.1:
A67446
+BM (+) E1(−)
E10E11
ECM Connector
05−220
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM1045E)
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
Read freeze frame data usingthe hand−held tester. Freeze frame data records the engine conditions when
a malfunction is detected. When troubleshooting, freeze frame data can help determine if the vehicle was
running or stopped, if the engine was warmed up or not, if the air−fuel ratio was lean or rich, and other data
from the time the malfunction occurred.
1CHECK FUSE(THROTTLE FUSE)
(a) Remove the THROTTLE fuse from the engine room R/B
No.1.
(b) Check for continuity in the THROTTLE fuse.
Standard: Continuity
(c) Reinstall the THROTTLE fuse.
NG CHECK FOR SHORT IN ALL HARNESSES AND
COMPONENTS CONNECTED TO FUSE
OK
2 INSPECT ECM(+BM VOLTAGE)
(a) Measure the voltage between the specified terminals of
the E10 and E11ECM connectors.
Standard:
Tester ConnectionSpecified Condition
+BM (E10−6)−E1(E11−1)9to14V

−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
05 −217
AVENSIS Supplement (RM 1045E)
DTC P2 111 THROTTLE ACTUATOR CONTROL SYSTEM
− STUCK OPEN
DTC P2 11 2 THROTTLE ACTUATOR CONTROL SYSTEM
− STUCK CLOSED
CIRCUIT DESCRIPTION
The throttle motor is operated by the ECM and it opens and closes the throttle valve using gears. The open-
ing angle of the throttle valve is detected by the throttle position sensor, which is mounted on the throttle body.
The throttle position sensor provides feedback to the ECM to control the throttle motor and set the throttle
valve angle in response to driver input.
HINT:
This Electrical Throttle Control System (ETCS) does not use a throttle cable.
DTC No.DTC Detection ConditionTrouble Area
P2 111Throttle valve opening angle is stuck during ECM orders to
close ( 1 trip detection logic)
S Throttle control motor circuit
S Throttle control motor
S Throttle body
S Throttle valve
P2 11 2Throttle valve opening angle is stuck during ECM orders to
open ( 1 trip detection logic)
SThrottle control motor circuit
S Throttle control motor
S Throttle body
S Throttle valve
WIRING DIAGRAM
Refer to DTC P2 102 on page 05 −214.
INSPECTION PROCEDURE
HINT:
Read freeze frame data using the hand−held tester . Freeze frame data records the engine conditions when
a malfunction is detected. When troubleshooting, freeze frame data can help determine if the vehicle was
running or stopped, if the engine was warmed up or not, if the air −fuel ratio was lean or rich, and other data
from the time the malfunction occurred.
1 INSPECT THROTTLE BODY ASSY(VISUALLY CHECK THROTTLE VALVE)
(a) Check if a foreign object has been caught between the throttle valve and the housing.
NG REMOVE FOREIGN OBJECT AND CLEANTHROTTLE BODY
OK
05CKQ −02

A54292
T1
Throttle Control Motor
(Built in Throttle Body)
2
1B
WECM
3
2
17M+
M−
E11
(Shielded)
E11
E11
GE01 05−214
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM1045E)
DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR
CIRCUIT LOW
DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR
CIRCUIT HIGH
CIRCUIT DESCRIPTION
The throttle motor is operated by the ECM and it opens and closes the throttle valve.
The opening angle of the throttle valve is detected by the throttle position sensor which is mounted on the
throttle body. The throttle position sensor provides feedback to the ECM. This feedback allows the ECM to
control the throttle motor and monitor the throttle opening angle as the ECM responds to driver input.
HINT:
This Electrical Throttle Control System (ETCS) does not use a throttle cable.
DTC No.DTC Detection ConditionTrouble Area
P2102
Conditions (a) and (b) continue for 2.0 seconds:
(1 trip detection logic)
(a) Throttle control motor output duty greater than 80 %
(b) Throttle control motor current less than 0.5 ASOpen in throttle control motor circuit
SThrottle control motor
SECM
P2103
Either of following conditions is met. (1 trip detection logic)
SThrottle control motor current 10 A or more (0.1 second)
SThrottle control motor current 7A or more (0.6second)
SShort in throttle control motor circuit
SThrottle control motor
SThrottle valve
SThrottle body assembly
SECM
WIRING DIAGRAM
05CKP−02

A76875
ECM
SCV 5
E13 EFI Relay
1 1 23
Engine Room
J/B No. 4B−W
1MREL 8
E9
Battery FL MAIN B−G2 5
GR
V6
VSV (Intake Air Control Valve)
2
L−B EFI No. 2 1
B−G
W−B
ECW−B
4A
14B 11AEFI
1B−Y
1
2 4
4
44
4
4
B−W Engine Room
R/B No. 1Engine Room R/B No. 4
GR
B−W
EA113IE1 2 Engine Room
J/B No. 1 05−210
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM1045E)
DTC P2008 INTAKE MANIFOLD RUNNER CONTROL
CIRCUIT / OPEN (BANK1)
CIRCUIT DESCRIPTION
The Intake Air Control Valve (IACV) is opened and shut by the actuator with intake manifold vacuum.
It stabilizes the engine combustion. The IACV operation generates swirl air flow in the cylinder.
DTC No.DTC Detection ConditionTrouble Area
P2008Open or short in VSV for IACV circuit 0.5 second or more
(2 trip detection logic)SOpen of short in VSV for IACV circuit
SVSV for IACV
SECM
WIRING DIAGRAM
05HIP−01

A76876
ECM
J13G
FP+ 6
R
E12
D(Shielded)
J13 E
J12 E J12D
BRBR
EEJ/C21 S3
Fuel Pump
(High Pressure)
(Spill Valve)
G
FP− 3
E12
(Shielded) BR
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
05−207
AVENSIS Supplement (RM1045E)
DTC P1235 HIGH PRESSURE FUEL PUMP CIRCUIT
CIRCUIT DESCRIPTION
The fuel pump (high pressure) is an electronically controlled plunger type fuel pump which is driven by the
cam provided on the intake camshaft rear end on the cylinder head.
The fuel pump (high pressure) increases the pressure of the fuel supplied from the fuel pump (low pressure)
in the fuel tank to 8 to 13 MPa (81.6 to 132.6 kgf/cm
2, 1,160 to 1,885 psi) according to the operating condition,
and it feeds the fuel to the fuel delivery pipe.
DTC No.DTC Detection ConditionTrouble Area
Ohtifl(hi h)iitf1dSOpenorshortinfuelpump(highpressure)
P1235Open or short in fuel pump (high pressure) circuit for 1 second
ormore
SOpenorshortinfuelpump(highpressure)
SFuelpump(highpressure)P1235or moreSFuelpump(highpressure)
SECM
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
Read freeze frame data usingthe hand−held tester. Freeze frame data records the engine conditions when
a malfunction is detected. When troubleshooting, freeze frame data can help determine if the vehicle was
running or stopped, if the engine was warmed up or not, if the air−fuel ratio was lean or rich, and other data
from the time the malfunction occurred.
05CK4−02

A76870
I13
Ignition SW
B−R
StarterECM
FL MAIN
BatterySTA E1317 B−Y
B−Y
B−W
W−B 1
2 35
9
W−B 1
1
B−R B−G 1
1B−G
4A 1A 2
DA Engine
Room
R/B No. 4Driver
Side J/B
S4
S5 14B1AM2Engine
Room
R/B No. 1 1IE41
(LHD)IP11
(RHD)B−RB−R
B−R
55
55
2DJ
IJ IK1 7B
BST
RelayDriver
Side
R/B5
4
AM2 ST2
B−Y
B−Y
A J12 B J12C J13 B J13
A J12
B−Y
(M/T) 6
6 1
2STFuse
Block
J/C
B−Y
(A/T) B−W
(A/T)
96
N1
Park/Neutral Position SwitchB−Y
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
05−203
AVENSIS Supplement (RM1045E)
DTC P0617 STARTER RELAY CIRCUIT HIGH
CIRCUIT DESCRIPTION
While the engine is being cranked, the positive battery voltage is applied to terminal STA of the ECM.
If the vehicle is being driven and the ECM detects the starter control signal (STA), the ECM concludes that
the starter control circuit is malfunctioning. The ECM will turn on the CHK ENG and a DTC is set.
DTC No.DTC Detection ConditionTrouble Area
P0617
When all conditions (a), (b) and (c) are satisfied with battery
(+B) voltage 10.5 V or more for 20 seconds:
(a) Vehicle speed greater than 12 mph (20 km/h)
(b) Engine speed greater than 1,000 rpm
(c) STA signal ONSShort in Park/Neutral position switch (A/T)
SPark/Neutral position switch (A/T)
SIgnition switch
SECM
WIRING DIAGRAM
05HIO−01

A76868
B2
Brake Booster Pressure Sensor18
E13 ECM
5V
E1
3
R−W
26
Y
2
1
BR 28
E2PB
VC
PIM
E2 E13
E13
VC
R−W
Y
BR
9
EA1
11
10
EA1
EA1
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
05 −1 91
AVENSIS Supplement (RM1045E)
DTC P0555 BRAKE BOOSTER PRESSURE SENSOR
CIRCUIT
DTC P0557 BRAKE BOOSTER PRESSURE SENSOR CIRCUIT LOW INPUT
DTC P0558 BRAKE BOOSTER PRESSURE SENSOR CIRCUIT HIGH INPUT
CIRCUIT DESCRIPTION
The brake booster pressure sensor detects internal pressure of the brake booster as voltage. A structure
of the sensor and its connection to the ECM are the same as those of the intake air pressure sensor (refer
to DTC P0105 on page 05 −61).
In order to purify emission gas when starting a cold engine, drastically retard the ignition timing to quickly
activate tha catalyst. Upon this, the throttle valve is opened larger than the throttle opening angle with a warm
engine, therefore the intake manifold pressure will be closer to atmospheric pressure. If the negative pres-
sure (vacuum) applied inside the brake booster drops, the ECM cancels the drastic retarding timing and
introduces the negative pressure (vacuum) into the intake manifold, and the ECM then resumes the drastic
retarding timing after the brake booster negative pressure (vacuum) is ensured at required level.
DTC No.DTC Detection ConditionTrouble Area
P0555Open or short in brake booster pressure sensor circuit for 5
seconds or more
S Open or short in brake booster pressure sensor circuit
S Brake booster pressure sensor
S Vacuum hose
S ECM
P0557Open in brake booster pressure sensor circuit for 5 seconds or
more
SOpen or short in brake booster pressure sensor circuit
S Brake booster pressure sensor
S Vacuum hose
S ECM
P0558Short in brake booster pressure sensor circuit for 5 seconds or
more
SOpen or short in brake booster pressure sensor circuit
S Brake booster pressure sensor
S Vacuum hose
S ECM
WIRING DIAGRAM
05CKN −02