2005 TOYOTA AVENSIS diagnostic

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.

A81707
ON (Free) OFF (Pushed in)
43
2
1
A72880
Brake Pedal
Depressed Brake Pedal
Released
ST 1− (+)
E 11
E1 (− )
E10
ECM Connector
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
05 −1 87
AVENSIS Supplement (RM 1045E)
1 CHECK OPERATION OF STOP LAMP
(a) Check if the stop lamps go on and off normally when the brake pedal is depressed and released.
NG REPAIR OR REPLACE STOP LAMP SWITCHCIRCUIT
OK
2 INSPECT STOP LAMP SWITCH ASSY
(a) Check for continuity between each pair of the terminals when the switch is ON and OFF.
Standard:
Switch PositionTester ConnectionSpecified Condition
Switch pin free1−2Continuity
Switch pin free3− 4No continuity
Switch pin pushed in1− 2No Continuity
Switch pin pushed in3− 4Continuity
NG REPLACE STOP LAMP SWITCH ASSY
OK
3 READ VALUE OF HAND −HELD TESTER(STP SIGNAL AND ST 1− VOLTAGE)
(a) Turn the ignition switch to ON.
(b) On the hand −held tester, select the item: DIAGNOSIS /
OBD/MOBD / DATA LIST / ALL / STOP LIGHT SW. Read
the values.
Standard:
Brake PedalSpecified Condition
DepressedSTP Signal ON
ReleasedSTP Signal OFF
(c) Measure the voltage between the terminals of the E 10
and E 11 ECM connectors.
Standard:
Tester ConnectionBrake PedalSpecified Condition
ST 1− (E10−1 2)
− E1 (E 11−1 )DepressedBelow 1.5 V
ST 1− (E10−1 2)
− E1 (E 11−1 )Released7.5 to 14V
NG Go to step 4
OK
CHECK FOR INTERMITTENT PROBLEMS (See Page 05 −7)

A56986
Wire Harness Side:
Stop Lamp Switch Connector
S13
Front View
A67404
STP E10
ECM Connector ST1−
05−188
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM1045E)
4 CHECK HARNESS AND CONNECTOR(ECM−STOP LAMP SWITCH)
(a) Disconnect the S13 stop lamp switch connector.
(b) Disconnect the E10 ECM connector.
(c) Check the resistance between the wire harness side con-
nectors.
Standard (Check for open):
Tester ConnectionSpecified Condition
Stop lamp switch (S13−1)−STP (E10−19)Below1

Stop lamp switch (S13−4)−ST1−(E10−12)Below1

Standard (Check for short):
Tester ConnectionSpecified Condition
Stop lamp switch (S13−1) or STP (E10−19)−Body ground10k
or higher
Stop lamp switch (S13−4) or ST1−(E10−12)−Body ground10k
or higher
(d) Reconnect the stop lamp switch connector.
(e) Reconnect the ECM connector.
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
REPLACE ECM (See page10−65 of Pub. No. RM1018E AVENSIS)

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

A81705
VSV is ONAirVSV is OFF
A76903
EVP1 (+)
ECM Connector
E13
E01 (−)
05 −1 80
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM1045E)
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 PERFORM ACTIVE TEST BY HAND −HELD TESTER(VSV FOR EVAP)
(a) Disconnect the vacuum hose from the VSV for EVAP.
(b) Start the engine.
(c) Select the item: DIAGNOSIS / OBD/MOBD / ACTIVE
TEST / EVAP VSV (press the right or left button).
(d) When the VSV for EVAP is operated by the hand −held
tester, check whether the disconnected hose applies suc-
tion to your finger.
Standard:
Tester OperationSpecified Condition
VSV is ONDisconnected hose applies suction to your finger
VSV is OFFDisconnected hose applies no suction to your finger
(e) Reconnect the vacuum hose.
OK CHECK FOR INTERMITTENT PROBLEMS (See Page 05 −7)
NG
2 INSPECT VACUUM SWITCHING VALVE ASSY NO. 1(VSV FOR EVAP)
(See page 12− 3)
NG REPLACE VACUUM SWITCHING VALVE ASSY
NO.1(VSV FOR EVAP)
OK
3 INSPECT ECM(EVP 1VOLTAGE)
(a) Turn the ignition switch to ON.
(b) Measure the voltage between the specified terminals of
the E13 ECM connector.
Standard:
Tester ConnectionSpecified Condition
EVP1 (E13 −34) −E01 (E13 −7)9to14V
OK CHECK AND REPLACE ECM (See page 10− 65 of
Pub. No. RM 1018E AVENSIS)
NG

A81699EVP1
E13
ECM Connector
A51984A52933
Wire Harness Side:
VSV for EVAP Connector
V5
Front View
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
05−181
AVENSIS Supplement (RM1045E)
4 CHECK HARNESS AND CONNECTOR(ECM−VSV FOR EVAP)
(a) Disconnect the E13 ECM connector.
(b) Disconnect the V5 VSV for EVAP connector.
(c) Check the resistance between the wire harness side con-
nectors.
Standard (Check for open):
Tester ConnectionSpecified Condition
VSV for EVAP (V5−2)−EVP1 (E13−34)Below 1

Standard (Check for short):
Tester ConnectionSpecified Condition
VSV for EVAP (V5−2) or EVP1 (E13−34)−Body ground10 k
or higher
(d) Reconnect the ECM connector.
(e) Reconnect the VSV for EVAP connector.
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK