Page 1737 of 5135
B63408
Wire Harness Side
T6
Theft Warning ECU Assy
B68387
Wire Harness Side
H11
H12
Horn Assy Engine Room R/B No. 2
1
05±1646
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
4 CHECK THEFT WARNING ECU ASSY (POWER SOURCE)
(a) Disconnect the T6 ECU connector.
(b) Check the voltage between the wire harness side con-
nector and the body ground.
Standard:
Tester ConnectionSpecified Condition
T6±5 (HORN) ± Body ground10 to 14 V
NG REPAIR OR REPLACE HARNESS AND
CONNECTOR
OK
5 CHECK WIRE HARNESS (ENGINE ROOM R/B NO. 2 ± HORN ASSY)
(a) Remove the HORN relay from the engine room R/B No.
2.
(b) Disconnect the H11 and H12 horn connectors.
(c) Check the resistance between the wire harness side con-
nectors.
Standard:
Tester ConnectionSpecified Condition
3 ± H11±1Below 13 ± H12±1Below 1
NG REPAIR OR REPLACE HARNESS AND
CONNECTOR
OK
REPLACE THEFT WARNING ECU ASSY
Page 1738 of 5135
B68375
E6
Engine Hood Courtesy Switch
W±B
1 3IO15
DSWH
34 L±RT6
Theft Warning ECU Assy
ECL±R
B67861
Free
(ON)
Pushed
(OFF)
05±1642
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
ENGINE HOOD COURTESY SWITCH CIRCUIT
CIRCUIT DESCRIPTION
The engine hood courtesy switch is installed together with the hood lock assy. This switch comes on when
the engine hood is opened and goes off when the engine hood is closed.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT ENGINE HOOD COURTESY SWITCH
(a) Remove the engine hood courtesy switch from the hood
lock assy.
(b) Check the resistance.
Tester ConnectionSwitch PositionSpecified Condition
13Pushed (OFF (Lock))10 k or higher1 ± 3Free (ON (Unlock))Below 1
NG REPAIR OR REPLACE ENGINE HOOD
COURTESY SWITCH
OK
05BAE±01
Page 1739 of 5135
B68381
Wire Harness Side
E6
Engine Hood Courtesy SwitchT6
Theft Warning ECU Assy
B67857
Wire Harness Side
E6
Engine Hood Courtesy Switch
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
05±1643
AVENSIS REPAIR MANUAL (RM1018E)
2 CHECK WIRE HARNESS (THEFT WARNING ECU ASSY ± ENGINE HOOD
COURTESY SWITCH)
(a) Disconnect the T6 ECU connector.
(b) Disconnect the E6 switch connector.
(c) Check the resistance between the wire harness side con-
nectors.
Standard:
Tester ConnectionSpecified Condition
T6±34 (DSWH) ± E6±1Below 1
NG REPAIR OR REPLACE HARNESS AND
CONNECTOR
OK
3 CHECK WIRE HARNESS (ENGINE HOOD COURTESY SWITCH ± BODY GROUND)
(a) Disconnect the E6 switch connector.
(b) Check the resistance between the wire harness side con-
nector and body ground.
Standard:
Tester ConnectionSpecified Condition
E6±3 ± Body groundBelow 1
NG REPAIR OR REPLACE HARNESS AND
CONNECTOR
OK
REPLACE THEFT WARNING ECU ASSY
Page 1740 of 5135

100EX±02
A75903
Air
A79035
VG
EVG
A79035
E2
EMPS
±
ENGINE CONTROL SYSTEM SFI SYSTEM(1ZZ±FE/3ZZ±FE)
10±1
AVENSIS REPAIR MANUAL (RM1018E)
SFI SYSTEM(1ZZ±FE/3ZZ±FE)
ON±VEHICLE INSPECTION
1.INSPECTMASS AIR FLOW METER
(a)If you have hand±held tester:
Inspect for operation
(1)Connect the hand±held tester to the DLC3.
(2)Turn the ignition switch ON.
(3)Blow air into the MAF meter, and check that the airflow fluctuates (MAF) of the ºDIAGNOSIS / OBD/
MOBD / DATA LIST / ALLº shown the standard val-
ue.
If operation is not as specified, check the MAF meter (See page
10±3), wiring and ECM.
(b)If you have no hand±held tester: Inspect for operation
(1)Turn the ignition switch ON.
(2)Connect the positive tester probe of the voltmeterto the terminal VG of the ECM. and the negative tes-
ter probe of the voltmeter to the terminal EVG of the
ECM.
(3)Blow air into the MAF meter, and check that the volt- age fluctuates.
If operation is not as specified, check the MAF meter (See page
10±3), wiring and ECM.
2. INSPECT POWER STEERING OIL PRESSURE SWITCH
(a) Using a voltmeter, measure the voltage between termi-
nals EMPS and E2.
Voltage:
ConditionVoltage (V)
Not spin the steering wheel at engine idling8 to 14
Spin the steering wheel at engine idling0 to 1.5
Page 1741 of 5135
A60620
Close Open
Valve
VaIve
Open
Close
Valve
1ZZ±FE:
3ZZ±FE:
VaIve 10±2
± ENGINE CONTROL SYSTEMSFI SYSTEM (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
3. INSPECT IDLE AIR CONTROL VALVE
NOTICE:
It is impossible to check the resister value and the op-
eration of ISCV by itself, because the ISCV has an IC
circuit inside it, which transforms the duty signal
from the ECM to the derive signal.
Clear the DTC after inspection.
HINT:
When the ISCV system has malfunctions except for its adher-
ence, DTC P0505 is detected.
(a) Operation inspection.
(1) Connect the ISCV connector to the ISCV.
(2) Check the valve movement when the ignition switch
is turned ON.
Movement:
Half open fully close fully open half open
HINT:
ISCV moves within 0.5 second.
Page 1742 of 5135
I35707
1AZ±FSE
D5
DLC3
TC
CG13
4W±L
W±B
W±B W±LW±L
W±BW±L
TC 20
E12 17 3
DB DC
CB CA36 DBB
B
A J21 J20J8
J8
J16
J/C
IOIP Center J/B Driver Side J/BECM
*2: RHD *1: LHD (*1)(*1)
(*1)(*2)
(*2)
(*2)
(*1) (*2)
(*2) J/B
A
W±B
± DIAGNOSTICSCRUISE CONTROL SYSTEM
05±1729
AVENSIS REPAIR MANUAL (RM1018E)
DIAGNOSIS CIRCUIT
CIRCUIT DESCRIPTION
Making short circuit between terminal TC and CG of DLC3 will output DTC from the DLC3.
WIRING DIAGRAM
05C4V±01
Page 1743 of 5135
I35707
1CD±FTV
D5
DLC3
TC
CG13
4W±L
W±B
W±B W±LW±L
W±BW±L
TC 11
E12 17 3
DB DC
CB CA36 DBB
B
A J21 J20J8
J8
J16
J/C
ILIP Center J/B Driver Side J/BECM
*2: RHD *1: LHD (*1)(*1)
(*1)(*2)
(*2)
(*2)
(*1) (*2)
(*2) J/B
A
W±B
C52361
TC D5
DLC3
CG
05±1730
± DIAGNOSTICSCRUISE CONTROL SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1 INSPECT DLC3(TC TERMINAL VOLTAGE)
(a) Turn the ignition switch to the ON position.
(b) Measure the voltage according to the value(s) in the table
below.
Standard:
Tester ConnectionSpecified Condition
TC (D5 ± 13) ± CG (D5 ± 4)10 to 14 V
NG Go to step 3
OK
Page 1744 of 5135

C52361
TCD5
DLC3
C52361CG
D5
DLC3
±
DIAGNOSTICS CRUISE CONTROL SYSTEM
05±1731
AVENSIS REPAIR MANUAL (RM1018E)
2CHECK HARNESS AND CONNECTOR(DLC3 ± ECM)
(a)Disconnect the ECM connector.
(b)Measure the resistance according to the value(s) in the
table below.
Standard:
1AZ±FSE
Tester ConnectionSpecified Condition
TC (D5 ± 13) ± TC (E12 ± 20)1 or less
1CD±FTV
Tester ConnectionSpecified Condition
TC (D5 ± 13) ± TC (E12 ± 11)1 or less
(c)Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
TC (E12 ± 20) ± Body ground10 kor higher
TC (E12 ± 11) ± Body ground10 k or higher
NGREPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
REPLACE ECM (See page 01±32)
3 CHECK HARNESS AND CONNECTOR(DLC3 ± BODY GROUND)
(a) Disconnect the ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard:
Tester ConnectionSpecified Condition
CG (D5 ± 4) ± Body ground10 kor higher
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK