TOYOTA AVENSIS 2005 Service Repair Manual

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

A90210
Engine Room R/B No. 4:EFI No.2 fuse
A66053
Engine Room R/B No. 4:
EFI Relay
A51984A52933
Wire Harness Side:
VSV for EVAP Connector
V5
Front View
05−1 82
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM1045E)
5 CHECK HARNESS AND CONNECTOR(EFI RELAY − VSV FOR EVAP)
(a) Inspect the EFI No. 2 fuse.
(1) Remove the EFI No. 2 fuse from the engine room R/B No. 4.
(2) Check for continuity in the EFI No. 2 fuse.
Standard: Continuity
(3) Reinstall the EFI No. 2 fuse.
(b) Remove the EFI relay from the engine room R/B No. 4.
(c) Disconnect the V5 VSV for EVAP connector.
(d) Check the resistance between the wire harness side con- nectors.
Standard (Check for open):
Tester ConnectionSpecified Condition
Engine room R/B No.4 (EFI relay terminal 3) −
VSV for EVAP (V5 −1)Below 1

Standard (Check for short):
Tester ConnectionSpecified Condition
Engine room R/B No.4 (EFI relay terminal 3) or
VSV for EVAP (V5−1) − Body ground10 k
or higher
(e) Reinstall the EFI relay.
(f) Reconnect the VSV for EVAP connector.
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
CHECK FOR ECM POWER SOURCE CIRCUIT (See page 05 −236)

− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
05−167
AVENSIS Supplement (RM1045E)
DTC P0351IGNITION COIL ”A” PRIMARY/SECONDARY
CIRCUIT
DTC P0352 IGNITION COIL ”B” PRIMARY/SECONDARY
CIRCUIT
DTC P0353 IGNITION COIL ”C” PRIMARY/SECONDARY
CIRCUIT
DTC P0354 IGNITION COIL ”D” PRIMARY/SECONDARY
CIRCUIT
HINT:
SThese DTCs indicate a malfunction related to the primary circuit.
SIf DTC P0351is displayed, check No.1ignition coil with igniter circuit.
SIf DTC P0352 is displayed, check No. 2 ignition coil with igniter circuit.
SIf DTC P0353 is displayed, check No. 3 ignition coil with igniter circuit.
SIf DTC P0354 is displayed, check No. 4 ignition coil with igniter circuit.
CIRCUIT DESCRIPTION
A Direct Ignition System (DIS) is used on this vehicle. The DIS improves the ignition timing accuracy, reduces
high−voltage loss, and enhances the overall reliability of the ignition system by eliminating the distributor.
The DIS is a1−cylinder ignition system which ignites one cylinder with one ignition coil. In the1−cylinder
ignition system, the one spark plug is connected to the end of the secondary winding. High voltage generated
in the secondary winding is applied directly to the spark plug. The spark of the spark plug passes from the
center electrode to the ground electrode.
The ECM determines the ignition timing and outputs the ignition signals (IGT) for each cylinder. Using the
ignition (IGT) signal, the ECM turns on and off the power transistor inside the igniter and this switches on
and off the current to the primary coil. When the current flow to the primary coil is cut off, high−voltage is
generated in the secondary coil and this voltage is applied to the spark plugs to spark inside the cylinders.
As the ECM cuts the current to the primary coil, the igniter sends back the ignition confirmation (IGF) signal
for each cylinder ignition to the ECM.
05HIL−01

A83838
Crankshaft
Position
Sensor
Camshaft
Position
SensorIGT1
IGF
IGT2
IGT3
IGT4 ECM
No.1Spark Plug
No. 2 Spark Plug
No. 3 Spark Plug
No. 4 Spark Plug IgniterFrom Battery
Ignition Coil
TACH
To Tachometer Other Sensors
(Engine Coolant Sensor,
Air Flow Sensor, Throttle
Position Sensor, etc.)No.2 Ignition
Coil with igniter
No.3 Ignition
Coil with igniter
No.4 Ignition
Coil with igniterNo.1Ignition
Coil with igniter
GND
GND CH1
CH2
A35500
Normal Signal Waveforms 05−168
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM1045E) DTC No.
DTC Detection ConditionTrouble Area
P0351
P0352
P0353
P0354
No IGF signal to ECM while engine is running
SIgnition system
SOpen or short in IGF and IGT circuit between ignition coil with
igniter and ECM (ignition coil circuit1through 4)
SIgnition coil with igniter (ignition coil1through 4)
SIG2 relay
SECM
Reference: Inspection using the oscilloscope.
HINT:
The correct waveforms are as shown on the left.
ItemDetails
TerminalCH1: IGT1, IGT2, IGT3, IGT4−E1
CH2: IGF1−E1
Equipment Setting2 V/Division, 20 ms/Division
ConditionWhile the engine is cranking or idling