Page 609 of 5135

A82233
THROTTLE Fuse
Engine Room R/B No. 1
A67446
+BM (+)
E1 (±)
E10E11
ECM Connector
05±488
±
DIAGNOSTICS SFI SYSTEM(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
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, it is useful for determi\
ning whether the vehicle was running
or stopped, the engine was warmed up or not, the air±fuel ratio was lea\
n or rich, etc. at the time of the mal-
function.
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
NGCHECK FOR SHORT IN ALL HARNESSES AND COMPONENTS CONNECTED FUSE
OK
2INSPECT ECM(+BM VOLTAGE)
(a)Check the voltage between the specified terminals of the E10 and E11 ECM connectors.
Standard:
Symbols (Terminal No.)Specified condition
+BM (E10±6) ± E1 (E11±1)9 to 14 V
OKCHECK AND REPLACE ECM (See page 01±32)
NG
Page 610 of 5135

A82234
Engine Room R/B No. 1
THROTTLE Fuse
A67404
+BM
E10
ECM Connector
± DIAGNOSTICSSFI SYSTEM (1AZ±FSE)
05±489
AVENSIS REPAIR MANUAL (RM1018E)
3 CHECK HARNESS AND CONNECTOR(ECM ± THROTTLE FUSE, THROTTLE FUSE
± BATTERY)
(a) Check the harness and the connector between the
THROTTLE fuse and the ECM.
(1) Remove the THROTTLE fuse from the engine room
R/B No. 1.
(2) Disconnect the E10 ECM connector.
(3) Check for continuity between the wire harness side
connectors.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
THROTTLE fuse (2) ± +BM (E10±6)Continuity
Standard (Check for short):
Symbols (Terminal No.)Specified condition
THROTTLE fuse (2) or +BM (E10±6) ± Body groundNo continuity
(b) Check the harness and the connector between the
THROTTLE fuse and the battery.
(1) Remove the THROTTLE fuse from the engine room
R/B No. 1.
(2) Disconnect the battery positive terminal.
(3) Check for continuity between the wire harness side
connectors.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
Battery positive terminal ± THROTTLE fuse (1)Continuity
Standard (Check for short):
Symbols (Terminal No.)Specified condition
Battery positive terminal or THROTTLE fuse (1)
± Body groundNo continuity
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
CHECK AND REPLACE ENGINE ROOM RELAY BLOCK
Page 611 of 5135

A54292
T1
Throttle Control Motor
(Built in Throttle Body)
2
1B
WECM
3
2
17M+
M±
E11
(Shielded)
E11
E11
GE01
± DIAGNOSTICSSFI SYSTEM (1AZ±FSE)
05±483
AVENSIS REPAIR MANUAL (RM1018E)
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. It provides feedback to the ECM to control the throttle motor in order to regulate the throttle
valve opening angle properly in response to the driving condition.
If this malfunction is detected, the ECM shuts down the power for the throttle motor, and the throttle valve
is closed by the return spring. And the throttle valve is locked at a certain opening angle. Also, the whole
electronically controlled throttle operation is cancelled until the system returns to normal and the ignition
switch is turned OFF.
HINT:
This electrical throttle system does not use the throttle cable.
DTC No.DTC Detection ConditionTrouble Area
P2102
Conditions (a) and (b) continue for 2.0 seconds:
(a) Throttle control motor output duty greater than 80 %
(b) Throttle control motor current less than 0.5 AOpen in throttle control motor circuit
Throttle control motor
ECM
Throttle control motor current greater than 10 AShort in throttle control motor circuit
P2103Condition (a) continues for 0.6 seconds:
(a) Throttle control motor current greater than 7 A
Short in throttle control motor circuit
Throttle control motor
ECM
WIRING DIAGRAM
05CKP±01
Page 612 of 5135

A59778M±
M+
Component Side
Throttle Body
T1
B53781
Wire Harness Side Throttle Body Connector
M± M+
T1
A54408ECM Connector
M±
M+ E11
05±484
±
DIAGNOSTICS SFI SYSTEM(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
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, it is useful for determi\
ning whether the vehicle was running
or stopped, the engine was warmed up or not, the air±fuel ratio was lea\
n or rich, etc. at the time of the mal-
function.
1INSPECT THROTTLE BODY ASSY(RESISTANCE OF THROTTLE CONTROL MOTOR)
(a)Disconnect the T1 throttle body connector.
(b)Measure the motor resistance between terminals M+ and
M±.
Motor resistance: 0.3 to 100 at 20 C (68 F)
NGREPLACE THROTTLE BODY ASSY (See page 10±44)
OK
2CHECK HARNESS AND CONNECTOR(THROTTLE CONTROL MOTOR ± ECM)
(a)Disconnect the T1 throttle body connector.
(b)Disconnect the E11 ECM connector.
(c)Check for continuity between the wire harness side con- nectors.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
M+ (T1±2) ± M+ (E11±3)ContinuityM± (T1±1) ± M± (E11±2)Continuity
Standard (Check for short):
Symbols (Terminal No.)Specified condition
M+ (T1±2) or M+ (E11±3) ± Body groundNocontinuityM± (T1±1) or M± (E11±2) ± Body groundNo continuity
NGREPAIR OR REPLACE HARNESS OR CONNECTOR
OK
CHECK AND REPLACE ECM (See page 01±32)
Page 613 of 5135
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
14B11AEFI
1B±Y
1
2 4
4
44
4
4
B±W Engine Room
R/B No. 1
and
Engine Room
J/B No. 1Engine Room R/B No. 4
GR
B±W
EA113IE1 2 05±480
± DIAGNOSTICSSFI SYSTEM (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
DTC P2008 INTAKE MANIFOLD RUNNER CONTROL
CIRCUIT / OPEN (BANK 1)
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 sec. or more
(2 trip detection logic)Open of short in VSV for IACV circuit
VSV for IACV
ECM
WIRING DIAGRAM
05CK5±01
Page 614 of 5135

A81701VSV is ONVSV is OFFE
F E
F Air
Air
A76903
E1 (±)
SCV (+)
ECM Connector
E13
E11
±
DIAGNOSTICS SFI SYSTEM(1AZ±FSE)
05±481
AVENSIS REPAIR MANUAL (RM1018E)
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, it is useful for determi\
ning whether the vehicle was running
or stopped, the engine was warmed up or not, the air±fuel ratio was lea\
n or rich, etc. at the time of the mal-
function.
1PERFORM ACTIVE TEST BY HAND±HELD TESTER(VSV FOR IACV)
(a)Disconnect the vacuum hose from the VSV for IACV.
(b)Turn the ignition switch ON.
(c)Select the item ºDIAGNOSIS / OBD/MOBD / ACTIVE
TEST / SCV VSVº (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.
NGGo to step 2
OK
CHECK FOR INTERMITTENT PROBLEMS
2INSPECT VACUUM SWITCHING VALVE ASSY NO.1(VSV FOR IACV) (See page 13±2)
NGREPLACE VACUUM SWITCHING VALVE ASSY
NO.1 (VSV FOR IACV)
OK
3INSPECT ECM(SCV VOLTAGE)
(a)Turn the ignition switch ON.
(b)Measure the voltage between the specified terminals of the E11 and E13 ECM connectors.
Standard:
Symbols (Terminal No.)Specified condition
SCV (E13±5) ± E1 (E11±1)9 to 14 V
NGGo to step 4
OK
CHECK AND REPLACE ECM (See page 01±32)
Page 615 of 5135

A81699SCV
E13ECM Connector
A56870
Wire Harness Side
VSV for IACV Connector
V6
A66053
Engine Room R/B No. 4EFI Relay
A56870
Wire Harness Side
VSV for IACV Connector
V6
05±482
±
DIAGNOSTICS SFI SYSTEM(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
4CHECK HARNESS AND CONNECTOR(ECM ± VSV FOR IACV)
(a)Disconnect the V6 VSV for IACV connector.
(b)Disconnect the E13 ECM connector.
(c)Check for continuity between the wire harness side con- nectors.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
VSV for IACV (V6±2) ± SCV (E13±5)Continuity
Standard (Check for short):
Symbols (Terminal No.)Specified condition
VSV for IACV (V6±2) or SCV (E13±5) ± Body groundNo continuity
NGREPAIR OR REPLACE HARNESS OR CONNECTOR
OK
5CHECK 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 roomR/B No. 4.
(2)Check the continuity of the EFI No. 2 fuse.
Standard: Continuity
(b)Remove the EFI relay from the engine room R/B No. 4.
(c)Disconnect the V6 VSV for IACV connector.
(d)Check for continuity between the wire harness side con- nector.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
VSV for IACV (V6±1) ± EFI relay (3)Continuity
Standard (Check for short):
Symbols (Terminal No.)Specified condition
VSV for IACV (V6±1) or EFI relay (3) ± Body groundNo continuity
NGREPAIR OR REPLACE HARNESS OR CONNECTOR
OK
CHECK FOR ECM POWER SOURCE CIRCUIT (See page 05±502)
Page 616 of 5135

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 (1AZ±FSE)
05±477
AVENSIS REPAIR MANUAL (RM1018E)
DTC P1235 HIGH PRESSURE FUEL PUMP CIRCUIT
CIRCUIT DESCRIPTION
The fuel pump (high pressure) is an electronically controlled plunger type fuel pump (high pressure) which
is driven by the cam provided on the intake cam shaft rear end on the cylinder head.
The fuel pump (high pressure) increases the pressure of the fuel fed from the fuel pump (low pressure) in
the fuel tank at 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
O h ti f l (hi h ) i itf 1Open or short in fuel pump (high pressure)
P1235Open or short in fuel pump (high pressure) circuit for 1sec. or
more
Oen or short in fuel um (high ressure)
Fuel pump (high pressure)P1235moreFuel um (high ressure)
ECM
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
Read freeze frame data using hand±held tester. Freeze frame data records the engine conditions when the
malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running
or stopped, the engine was warmed up or not, the air±fuel ratio was lean or rich, etc. at the time of the mal-
function.
05CK4±01