TOYOTA AVENSIS 2005 Service Repair Manual

05−216
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM1045E)
3 INSPECT THROTTLE BODY ASSY(VISUALLY CHECK THROTTLE VALVE)
(a) Check between the throttle valve and the housing for foreign objects.
Also, check if the valve can open and close smoothly.
NG REMOVE FOREIGN OBJECT AND CLEAN
THROTTLE BODY
OK
REPLACE ECM (See page10−65 of Pub. No. RM1018E AVENSIS)

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

A81701VSV is ON VSV is OFFE
F E
F Air
Air
A76903
E01 (
−)
SCV (+)
ECM Connector
E13
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
05 −211
AVENSIS Supplement (RM1045E)
INSPECTION PROCEDURE
HINT:
S 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 IACV)
(a) Disconnect the vacuum hose from the VSV for IACV.
(b) Turn the ignition switch to ON.
(c) Select the item: DIAGNOSIS / OBD/MOBD / ACTIVE
TEST / SCV VSV (press the right or left button).
(d) Check the VSV for IACV operation when it is operated by the hand −held tester.
Standard:
Tester OperationSpecified Condition
VSV is ONAir from port E flows out through port F
VSV is OFFAir does not flow from port E to port F
NG Go to step 2
OK
CHECK FOR INTERMITTENT PROBLEMS (See Page 05 −7)
2 INSPECT VACUUM SWITCHING VALVE ASSY NO. 1(VSV FOR IACV)
(See page 12− 3)
NG REPLACE VACUUM SWITCHING VALVE ASSY
NO.1(VSV FOR IACV)
OK
3 INSPECT ECM(SCV VOLTAGE)
(a) Turn the ignition switch to ON.
(b) Measure the voltage between the specified terminals of the E13 ECM connector.
Standard:
Tester ConnectionSpecified Condition
SCV (E13 −5) −E01 (E13 −7)9to14V
NG Go to step 4
OK
REPLACE ECM (See page 10− 65 of Pub. No. RM 1018E AVENSIS)

A81699SCV
E13
ECM Connector
A85697
Wire Harness Side:
VSV for IACV Connector
V6
Front View
05−212
− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM1045E)
4 CHECK HARNESS AND CONNECTOR(ECM−VSV FOR IACV)
(a) Disconnect the V6 VSV for IACV connector.
(b) Disconnect the E13 ECM connector.
(c) Check the resistance between the wire harness side con-
nectors.
Standard (Check for open):
Tester ConnectionSpecified Condition
VSV for IACV (V6−2)−SCV (E13−5)Below 1

Standard (Check for short):
Tester ConnectionSpecified Condition
VSV for IACV (V6−2) or SCV (E13−5)−Body ground10 k
or higher
(d) Reconnect the VSV for IACV connector.
(e) Reconnect the ECM 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
A85697
Wire Harness Side:VSV for IACV Connector
V6
Front View
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
05 −213
AVENSIS Supplement (RM1045E)
5 CHECK HARNESS AND CONNECTOR(EFI RELAY − VSV FOR IACV)
(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 V6 VSV for IACV connector.
(d) Check the resistance between the wire harness side con- nectors.
Standard (Check for open):
Tester ConnectionSpecified Condition
VSV for IACV (V6 −1) −
Engine room R/B No. 4 (EFI relay terminal 3)Below 1

Standard (Check for short):
Tester ConnectionSpecified Condition
VSV for IACV (V6 −1) or
Engine room R/B No. 4 (EFI relay terminal 3) − Body ground10 k
or higher
(e) Reinstall the EFI relay.
(f) Reconnect the VSV for IACV connector.
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
CHECK FOR ECM POWER SOURCE CIRCUIT (See page 05 −236)

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

A13269B12608
A76903
E12
ECM Connector
FP+
FP− E1
E11
A93658
Normal Signal Waveforms
5 msec./Division 10 V/
Division
GND FP
−
FP+
05 −208
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM1045E)
1 CHECK OPERATION OF FUEL PUMP(HIGH PRESSURE)
(a) With the engine running or cranking, use a sound scope
to check that there is the normal operating sounds of the
fuel pump (high −pressure) when it is operated.
Standard:
There is the operating sounds of the fuel pump (high −
pressure).
NG REPLACE FUEL PUMP (HIGH PRESSURE)
OK
2 INSPECT ECM(FP+ AND FP − VOLTAGE)
(a) Start the engine, and check the waveforms between ter-
minals FP+ and E1, and FP − and E1 of the E11 and E12
ECM connectors.
HINT:
The correct waveform is as shown in the illustration.
NG REPLACE ECM (See page 10 − 65 of Pub. No.
RM 1018E AVENSIS)
OK
3 CHECK FUEL PUMP(HIGH PRESSURE) (See page 11− 7)
NG REPLACE FUEL PUMP(HIGH PRESSURE)
OK

A81695
E12
ECM Connector
FP+
FP
−
A81702
S3
Fuel Pump Connector (High Pressure)
Wire Harness Side:
Front View
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
05 −209
AVENSIS Supplement (RM1045E)
4 CHECK HARNESS AND CONNECTOR(FUEL PUMP (HIGH PRESSURE) − ECM)
(a) Disconnect the E12 ECM connector.
(b) Disconnect the S3 fuel pump (high pressure) connector.
(c) Check the resistance between the wire harness side con-
nectors.
Standard (Check for open):
Tester ConnectionSpecified Condition
FP+ (E12 −6) − Fuel pump (S3 −1)Below 1

FP− (E12 −3) − Fuel pump (S3 −2)Below 1

Standard (Check for short):
Tester ConnectionSpecified Condition
FP+ (E12 −6) or Fuel pump (S3 −1) − Body ground10 k
or higher
FP − (E12 −3) or Fuel pump (S3 −2) − Body ground10 k
or higher
(d) Reconnect the ECM connector.
(e) REconnect the fuel pump (high pressure) connector.
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
CHECK FOR INTERMITTENT PROBLEMS (See Page 05 −7)

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

1
6 2 3 4 5
7 9 9
A79133
Park/Neutral Position SwitchN1 Component Side:
Front View
05−204
− 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.
1READ VALUE OF HAND−HELD TESTER(STARTER SIGNAL)
(a) Connect the hand−held tester to the DLC3.
(b) Turn the ignition switch to ON and turn the hand−held tester ON.
(c) On the hand−held tester, select the item: DIAGNOSIS / OBD/MOBD / DATA LIST / ALL / STARTER
SIG. Read the values.
Result:
Ignition Switch PositionONSTART
STA SignalOFFON
OK Go to step 6
NG
2 INSPECT PARK/NEUTRAL POSITION SWITCH ASSY
(a) Disconnect the N1 park/neutral position switch connec-
tor.
(b) Check the resistance between each terminal shown be-
low when the shift lever is moved to each position.
Standard:
Shift PositionTester ConnectionSpecified Condition
P1−3, 6−9Below 1

R2−3Below 1

N3−5, 6−9Below 1

D3−7Below 1

23−4Below 1

L3−8Below 1

(c) Reconnect the park/neutral position switch connector.
NG REPLACE PARK/NEUTRAL POSITION SWITCH
ASSY (GO TO STEP 3 AFTER THE REPLACE-
MENT)
OK