2005 TOYOTA AVENSIS diagram

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

A76867
Battery 4A
ALTS13
Stop Lamp
Switch G−W
19
E10
FL MAIN 1AM2
1
2 (LHD)4
IGN1
DM
STP
Driver
Side J/B
1
1
2
B−G 1A
B−GB−W4
3
IE3 Engine Room
J/B No. 4
Driver
Side J/B 4B 14D 1 B−G 1
2
1
B−G
B−W To Stop Lamp
6
I13
Ignition SW
1IE4
(RHD)
1IP1
B−R B−RB−R
2 DH
18 DA Engine
Room
R/B No.1
AM2 IG2
STOP22 DA
1 DN 11
R−W
(LHD) R−W
(LHD)
IR1 2
R−W
(RHD) R−W
(RHD)
IR1 3
B−W
(RHD) B−W
(RHD)
IE1 20
B−W
(LHD)B−W
(LHD)
(LHD) J9 C
(RHD) J27 E
J/C
(LHD) J8 C
(RHD) J26 AECM
12
E10ST1− 2
DA10
DCDriver
Side J/B
IE3 6
G−W
(LHD) G−W
(LHD)
IR1 1
G−W
(RHD) G−W
(RHD)
IR1 4
G−W
(RHD)G−W
(RHD)
IE2 14
G−W
(LHD) G−W
(LHD)G−W
Engine
Room
J/B No.1 05−186
− 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.

A81703
From
Speed SensorSkid
Control
ECU4−Pulse
Combination
MeterECM 4−Pulse
A76866
Combination MeterECM
C11V−W
SPD 17
V−W
E10 J/C
18 H
J10
(LHD)J20H
(RHD)H
J10
(LHD)J20H
(RHD)
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
05−183
AVENSIS Supplement (RM1045E)
DTC P0500 VEHICLE SPEED SENSOR ”A”
DTC P0503 VEHICLE SPEED SENSOR ”A”
INTERMITTENT/ERRATIC/HIGH
CIRCUIT DESCRIPTION
The speed sensor detects the wheel speed and sends the appropriate signals to the skid control ECU. The
skid control ECU converts these wheel speed signals into a 4−pulse signal and outputs it to the ECM via
the combination meter. The ECM determines the vehicle speed based on the frequency of these pulse sig-
nals.
DTC No.DTC Detection ConditionTrouble Area
P0500
P0503No vehicle speed sensor signal to ECM under the following
condition (1 trip detection logic):
(a) Vehicle is being driven
SCombination meter
SOpen or short in vehicle speed sensor circuit
SVehicle speed sensor
SECM
SSkid control ECU
SClutch or brake slips or gear is broken
WIRING DIAGRAM
05CJ6−02

A59661
E1 (−)
SPD (+)
ECM ConnectorE11
E10
A81704
4.5 to
5.5V
0V
Turn Wheel
05−184
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM1045E)
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 OPERATION OF SPEEDOMETER
(a) Drive the vehicle and check if the operation of the speedometer in the combination meter is normal.
HINT:
The vehicle speed sensor is operating normally if the speedometer display is normal.
NG CHECK SPEEDOMETER CIRCUIT (See page
05−1510 of Pub. No. RM1018E AVENSIS)
OK
2 INSPECT ECM(SPD VOLTAGE)
(a) Shift the lever to the neutral position.
(b) Jack up the vehicle.
(c) Turn the ignition switch to ON.
(d) Check the voltage between the specified terminals of the
E10 and E11 ECM connectors as the wheel is turned
slowly.
Standard:
Tester ConnectionSpecified Condition
SPD (E10−17)−E1 (E11−1)Generated intermittently
HINT:
The output voltage should fluctuate up and down similarly to the
diagram on the left as the wheel is turned slowly.
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
REPLACE ECM (See page10−65 of Pub. No. RM1018E AVENSIS)

A76875
ECM
EVP1 34
E13 EFI Relay
1 1 23
Engine Room
J/B No. 4B−W
1MREL 8
E9
Battery FL MAIN B−G2 5
GR
V5
VSV (EVAP)
2
W−G 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
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
05−179
AVENSIS Supplement (RM1045E)
DTC P0443 EVAPORATIVE EMISSION CONTROL
SYSTEM PURGE CONTROL VALVE CIRCUIT
CIRCUIT DESCRIPTION
To reduce HC emissions, evaporated fuel from the fuel tank is routed through the charcoal canister to the
intake manifold for combustion in the cylinders.
The ECM changes the duty signal to the VSV for EVAP so that the intake amount of HC emissions is ap-
propriate for the driving conditions (engine load, engine speed, vehicle speed, etc.) after the engine is
warmed up.
DTC No.DTC Detection ConditionTrouble Area
P0443Proper response to ECM command does not occur
SOpen of short in VSV for EVAP circuit
SVSV for EVAP
SECM
WIRING DIAGRAM
05HIM−01