TOYOTA AVENSIS 2005 Service Repair Manual

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.

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

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

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

C52361
TCD5
DLC3
05±1732
±
DIAGNOSTICS CRUISE CONTROL SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
4CHECK 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)

I35709
C9
Clutch Start
SW Assy
R±W R±W
R±W R±W
R±W
W±B W±B LG±B
LG±BLG±B
LG±BLG±B
LG±B (*1)
(*2)12 9
515
6
21
568
610 J14
J/C
J19
J/C
DECM
E11
DD
6
IP CPU
CRUISEC11
C11CD
CKCE
CA Center J/B Combination Meter AssyIE2
IR1IE2
IR1 (*1) (*1) (*1) (*1)
CC
(*2)
(*2)(*2)
(*2)
*1: LHD
*2: RHD 1AZ±FSE (M/T) 05±1722
± DIAGNOSTICSCRUISE CONTROL SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
CRUISE MAIN INDICATOR LIGHT CIRCUIT
CIRCUIT DESCRIPTION
When the cruise control main switch is turned off, the cruise control does not operate.
WIRING DIAGRAM
05C4U±01

I35708
R±W
R±W
R±W
W±BW±B LG±BLG±BLG±B
3
710
21
567
610 J/C
DECM
E11
8
D
6
IP C11
C11CD
CKCA
CA Center J/B Combination Meter AssyIK2
(*1)
(*2) C
*1: LHD
*2: RHD 1AZ±FSE (A/T)
RB
DL N1
Park/neutral Position SW
IK1
R±W(*1)(*2)
CPU CRUISE1
CD CA DA DBDCD
J14J14 J19 J19
Center J/B
Driver Side J/B
R±W GAUGE2 GAUGE1
27 7 1
I35710
C9
Clutch Start
SW Assy
R±W R±W
R±W
R±W
R±W
W±B W±BLG±B
LG±BLG±B
(*1)
(*2)1 9
515
6
21
56
8
610
DECM
E11
6
IP CPU
CRUISEC11
C11CD
CKCE
CA Center J/B Combination Meter AssyIE2
IR1IE2
IR1 (*1) (*1) (*1)
(*2)
(*2)
*1: LHD
*2: RHD 1CD±FTV
LG±B
(*2) 2
± DIAGNOSTICSCRUISE CONTROL SYSTEM
05±1723
AVENSIS REPAIR MANUAL (RM1018E)

I36055
05±1724
±
DIAGNOSTICS CRUISE CONTROL SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
HINT:
In case of using the hand±held tester, start the inspection from step 1, and in case of not using the hand±held
tester, start from step 2.
1READ VALUE OF HAND±HELD TESTER
(a)Connect the hand±held tester to the DLC3.
(b)Turn the ignition switch to the ON position, and turn the hand±held te\
ster main switch ON.
(c)Select the item ºCCS READYº in the DATA LIST and read its prompts displayed on the hand±held tes- ter.
ItemMeasurement Item /
Display (Range)Normal Condition
CCS READY MCruise control system standby
condition (Main CPU) / ON or OFFON
OFF: Change ON/OFF
each time Main SW is pushed in.
CCS READY SCruise control system standby
condition (Sub CPU) / ON or OFFON
OFF: Change ON/OFF
each time Main SW is pushed in.
NGPROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE
(See page 05±1709)
OK
2 INSPECT COMBINATION METER ASSY
(a) Disconnect the C11connector from combination meter assy.
(b) Measure voltage according to the value(s) in the table be- low.
Standard:
Tester ConnectionSpecified Condition
Terminal 21 (C11) ± Body ground10 to 14 V
Result:
OKA
NG (M/T)B
NG (A/T)C
B Go to step 4
C Go to step 7
A

I36055
E67361
Push inFree
1 2
± DIAGNOSTICSCRUISE CONTROL SYSTEM
05±1725
AVENSIS REPAIR MANUAL (RM1018E)
3 INSPECT COMBINATION METER ASSY
(a) Disconnect the C11 connector from the combination me-
ter.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
Terminal 5 (C11) ± Body ground10 k
or higher
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
REPAIR OR REPLACE COMBINATION METER ASSY
4 INSPECT CLUTCH START SWITCH ASSY
(a) Disconnect the clutch start switch assy connector.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Switch conditionTester connectionSpecification
Switch pin free1 ± 210 k
or higher
Switch pin pushed in1 ± 21
or less
NG INSPECT CLUTCH START SWITCH ASSY
OK

05±1726
±
DIAGNOSTICS CRUISE CONTROL SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
5CHECK HARNESS AND CONNECTOR(COMBINAITION METER ASSY ± CLUTCH START SWITCH ASSY)
(a)Disconnect the combination meter connector and clutch start switch connector.
(b)Measure the resistance according to the value(s) in the table below.
Standard:
Tester connectionConditionSpecification
Combination meter (C11±21) ± Clutch
start switch (C9±1)Always1
or less
(c)Measure the resistance according to the value(s) in the table below.
Standard:
Tester connectionConditionSpecification
Clutch start switch (C9±1) ± Body groundAlways10 k
or higher
NGREPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
6CHECK HARNESS AND CONNECTOR(CLUTCH START SWITCH ASSY ± ECM)
(a)Disconnect the clutch start switch connector and ECM connector.
(b)Measure the resistance according to the value(s) in the table below. Standard:
Tester connectionConditionSpecification
Clutch start switch (C9±2) ± D (E11±10)Always1
or less
(c)Measure the resistance according to the value(s) in the table below.
Standard:
Tester connectionConditionSpecification
D (E11±10) ± Body groundAlways10 k
or higher
NGREPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE (See page
05±1709)