TOYOTA AVENSIS 2005 Service Repair Manual

05±1714
± DIAGNOSTICSCRUISE CONTROL SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
HINT:
In case of using the hand±held tester, start the inspection from step1, and in case of not using the hand±held
tester, start from step 2.
1 READ 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 tester main switch ON.
(c) Select the item ºSTOP LIGHT SWº in the DATA LIST and read the displayed value.
ItemMeasurement Item /
Display (Range)Normal ConditionDiagnostic Note
STP LIGHT SW2 MStop lamp SW signal (Main CPU) /
ON or OFFON : Brake pedal depressed
OFF : Brake pedal released±
STP LIGHT SW2 SStop lamp SW signal (Sub CPU) /
ON or OFFON : Brake pedal depressed
OFF : Brake pedal released±
Standard:
Brake pedal depressed: OK
Brake pedal released: OFF
NG Go to step 2
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE
2 INSPECT STOP LAMP SWITCH OPERATION
(a) Check that the stop lamp lights up when brake pedal is depressed, and goes off when the brake pedal
is released.
NG INSPECT STOP LAMP SWITCH CIRCUIT
OK

E67360
Free2Pushed in1
43
I35703
1AZ±FSE:
STP
STP
1CD±FTV:
± DIAGNOSTICSCRUISE CONTROL SYSTEM
05±1715
AVENSIS REPAIR MANUAL (RM1018E)
3 INSPECT STOP LAMP SWITCH ASSY
(a) Disconnect the stop lamp switch assy connector.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Switch conditionTester connectionSpecification
Switch pin free1 ± 21
or less
Switch pin free3 ± 410 k
or higher
Switch pin pushed in1 ± 210 k
or higher
Switch pin pushed in3 ± 41
or less
NG REPLACE STOP LAMP SWITCH ASSY
OK
4 INSPECT ECM
(a) Remove the ECM with connectors.
(b) Turn the ignition switch to the ON position.
(c) Measure the voltage between terminal STP of ECM con-
nector and body ground when the brake pedal is de-
pressed and released.
Standard:
Pedal conditionTester connectionSpecification
DepressedSTP (E11±19) ± Body
ground10 to 14 V
ReleasedSTP (E11±19) ± Body
ground1 V or less

I35932
1AZ±FSE:ST±
ST±
1CD±FTV:
05±1716
±
DIAGNOSTICS CRUISE CONTROL SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
(d) Measure the voltage between terminal ST1± of ECM con- nector and body ground when the brake pedal is de-
pressed and released.
Standard:
Pedal conditionTester connectionSpecification
DepressedST± (E11±12) ± Body
ground1 V or less
ReleasedST± (E11±12) ± Bodyground10 to 14 V
NGREPLACE ECM (See page 01±32)
OK
REPAIR OR REPLACE HARNESS OR CONNECTOR

05±1710
±
DIAGNOSTICS CRUISE CONTROL SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0500/21 VEHICLE SPEED SENSOR ºAº
DTC P0503/23 VEHICLE SPEED SENSOR ºAº INTERMITTENT/ERRATIC/HIGH
CIRCUIT DESCRIPTION
See page 05±453. (1AZ±FSE) See page 05±640. (1CD±FTV)
DTC No.DTC Detection ConditionTrouble Area
P0500/21
The malfunction code is output when the vehicle speed signal
from the vehicle speed sensor is cut for 0.14 sec. or more
while cruise control is in operation.

Combination meter

Vehicle speed sensor
P0503/23
Momentary interruption and noise malfunction codes are output
when a rapid change of vehicle speed occurs while cruise
control is in operation.
Vehicle s eed sensor

Vehicle speed sensor

ECM
WIRING DIAGRAM
See page 05±453. (1AZ±FSE) See page 05±640. (1CD±FTV)
INSPECTION PROCEDURE
See page 05±453. (1AZ±FSE) See page 05±640. (1CD±FTV)
05C4Q±01

056HK±05
±
DIAGNOSTICS CRUISE CONTROL SYSTEM
05±1709
AVENSIS REPAIR MANUAL (RM1018E)
PROBLEM SYMPTOMS TABLE
If a normal code is displayed during the DTC check but the problem still o\
ccurs, check the circuits for each
problem symptom in the order given in the table below and proceed to the relate\
d troubleshooting page.
SymptomSuspect AreaSee page
Main switch cannot be turned ON.
(Cruise indicator light in combination meter is not lit.)1. Cruise control switch circuit
2. CRUISE MAIN indicator light circuit
3. ECM05±1718
05±1722
01±32
Setting of vehicle speed cannot be done.
(Although indicator light in combination meter is lit when the main
switch is turned ON, they go off when vehicle speed is set.)1. Cruise control switch circuit
2. ECM05±171801±32
Setting cannot be done.
(Indicator light in combination meter is lit when the main switch is
turned ON and they remain ON while setting.)1. Cruise control switch circuit
2. Stop lamp switch circuit
3. Combination meter system
4. ECM05±171805±1711 71±1
01±32
While the vehicle is driving with cruise control, the set control is
canceled.
(Indicator light and CRUISE remain ON.)
1. Cruise control switch circuit
2. Vehicle speed sensor circuit
3. Stop lamp switch circuit
4. CRUISE MAIN indicator light circuit
5. ECM05±1718
05±1710 05±1711
05±1722 01±32
Hunting
(Speed is not constant.)1. Vehicle speed sensor circuit
2. ECM05±1710
01±32
Setting cannot be cancelled.
(When Coast, Acceleration, Resume, Set speed change and Con-
trol switch are operated.)1. Cruise control switch circuit
2. CRUISE MAIN indicator light circuit
3. ECM05±1718
05±172201±32
DTC is not output, or is output when should not be.
1. Diagnosis circuit
2. CRUISE MAIN indicator light circuit
3. ECM05±1729
05±172201±32
CRUISE MAIN indicator light does not light up.
1. Cruise control switch circuit
2. CRUISE MAIN indicator light circuit
3. ECM
4. Combination meter05±1718
05±172201±3271±1

05ADL±02
I34746
E8E9
E10E11E12
± DIAGNOSTICSCRUISE CONTROL SYSTEM
05±1707
AVENSIS REPAIR MANUAL (RM1018E)
TERMINALS OF ECM
1AZ±FSE:
Symbols (Terminals No.)Wiring ColorConditionSTD Voltage
TC E1Ignition switch ON10 to 14 VTC ± E1
(E12±20 ± E10±1)W±L ± BRIgnition switch ON
Connect terminals TC and CG of DLC3Below 2 V
STP ± E1GW BR
Ignition switch ON
Depress brake pedal10 to 14 VSTP E1
(E11±19 ± E10±1)G±W ± BRIgnition switch ON
Release brake pedalBelow 1 V
Ignition switch ON0to3VIGSW ± E1BW BR
Ignition switch ON
Cruise control main switch ON0 to 3 VIGSW E1
(E12±9 ± E10±1)B±W ± BRIgnition switch ON9to14V()Ignition switch ON
Cruise control main switch OFF9 to 14 V
ST1± ± E1GW BR
Ignition switch ON
Depress brake pedalBelow 1 VST1 E1
(E11±12 ± E10±1)G±W ± BRIgnition switch ON
Release brake pedal10 to 14 V
Ignition switch ON9 to 14 V
Ignition switch ON
CANCEL switch hold ON6 to 10.1 V
CCS ± E1
(E11 24 E10 1)W ± BR
Ignition switch ON
SET/COAST switch hold ON4 to 7.1 V
(E11±24 ± E10±1)Ignition switch ON
RES/ACC switch hold ON2.1 to 4 V
Ignition switch ON
MAIN switch hold ONBelow 1 V

I34747
E8E9E12E11 05±1708
± DIAGNOSTICSCRUISE CONTROL SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
1CD±FTV:
Symbols (Terminals No.)Wiring ColorConditionSTD Voltage
STP ± E1GW BR
Ignition switch ON
Depress brake pedal10 to 14 VSTP E1
(E11±19 ± E9±7)G±W ± BRIgnition switch ON
Release brake pedalBelow 1 V
ST1± ± E1GW BR
Ignition switch ON
Depress brake pedalBelow 1 VST1 E1
(E11±12 ± E9±7)G±W ± BRIgnition switch ON
Release brake pedal10 to 14 V
Ignition switch ON9 to 14 V
Ignition switch ON
CANCEL switch hold ON6 to 10.1 V
CCS ± E1
(E1124 E97)W ± BR
Ignition switch ON
SET/COAST switch hold ON4 to 7.1 V
(E11±24 ± E9±7)Ignition switch ON
RES/ACC switch hold ON2.1 to 4 V
Ignition switch ON
MAIN switch hold ONBelow 1 V
M/T:
DE1LG B BR
Ignition switch ON
Depress clutch pedalBelow 1 V
D ± E1
(E11±10 ± E9±7)LG±B ± BRIgnition switch ON
Release clutch pedal10 to 14 V
TC E1Ignition switch ON10 to 14 VTC ± E1
(E12±11 ± E9±7)W±L ± BRIgnition switch ON
Connect terminals TC and CG of DLC3Below 2 V

05ADK±04
I35700
Engine Room J/B No.4
Engine Room R/B
Park/neutral Position Switch (A/T)
LHD:
Combination Meter Assy
Driver Side J/B
DLC3ECM
RHD:
Combination Meter Assy
Cruise Control Main Switch Assy
Stop Lamp Switch Assy Clutch Start Switch Assy (M/T) ECM
DLC3
Driver Side J/B
05±1706
± DIAGNOSTICSCRUISE CONTROL SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
LOCATION

056HH±05
±
DIAGNOSTICS CRUISE CONTROL SYSTEM
05±1705
AVENSIS REPAIR MANUAL (RM1018E)
DIAGNOSTIC TROUBLE CODE CHART
If a malfunction code is indicated during the DTC check, check the circuit\
listed for that code in the table
below, and proceed to the applicable page.
DTC No.
(See Page)Circuit InspectionTrouble Area
P0500/21
(05±1710)Vehicle Speed Sensor ºAº
Combination meter assy

Vehicle speed sensor
P0503/23
(05±1710)Vehicle Speed Sensor ºAº Intermittent/Erratic/High
Vehicle s eed sensor

Vehicle speed sensor circuit

ECM
P0571/52
(05±1711)Brake Switch ºAº Circuit

Stop lamp switch assy

Stop lamp switch assy circuit

ECM
P0607/54
(05±1717)Control Module Performance
ECM

056HG±05
C52361DLC3 05±1700
± DIAGNOSTICSCRUISE CONTROL SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
PRE±CHECK
1. DIAGNOSIS SYSTEM
(a) Description
ECM controls of the cruise control the function on a ve-
hicle.
Data stored in the cruise control memory and on the DTC
can be read from the DLC3 on the vehicle. If CRUISE
MAIN indicator light does not come on after the DTC
check, there is a malfunction of the cruise control.
Use the hand±held tester or SST to check and solve the
problem.
(b) Check the DLC3.
The vehicle's ECM uses ISO 9141±2(Euro±OBD)/ISO
14230 (M±OBD) for communication protocol. The termi-
nal arrangement of DLC3 complies with ISO 15031±3
and matches the ISO 9141±2 / ISO 14230 format.
Terminal No.Connection/Specified ConditionCondition
4Chassis Ground
Body Ground / 1
or lessAlways
7Bus  Line / Pulse GenerationDuring Communication
16Battery Positive ± Body Ground / 9 to 14 VAlways
HINT:
If the display shows ºUNABLE TO CONNECT TO VEHICLEº af-
ter connecting the hand±held tester to the DLC3 and turning the
ignition ON, there is a problem either with the vehicle or with the
tool.

If communication is normal when connecting the tool to
another vehicle, inspect the DLC3 on the original vehicle.

If communication is still not possible when connecting the
tool to another vehicle, the problem is probably in the tool
itself. Consult the Service Department listed in the tool's
instruction manual.