2005 TOYOTA AVENSIS cruise control system

−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
05 −37
AVENSIS Supplement (RM 1045E)
DTC No.
(See Page) Memory
*
1
CHK ENG
Trouble Area
Detection Item
P0420 *3
(05 −1 74)
Catalyst System Efficiency Be-
low Threshold (Bank 1)SGas leakage in exhaust system
S Heated oxygen sensor
S Three −way catalytic converter (inside exhaust manifold)
ff
P0430 *3
(05 −1 74)
Catalyst System Efficiency Be-
low Threshold (Bank 2)SGas leakage in exhaust system
S Heated oxygen sensor
S Three −way catalytic converter (inside exhaust manifold)
ff
P0443
(05 −1 79)Evaporative Emission Control
System Purge Control Valve Cir-
cuitSOpen of short in VSV circuit for EVAP
S VSV for EVAP
S ECM
ff
P0500
(05 −1 83)Vehicle Speed Sensor ”A”
SCombination meter
S Open or short in speed sensor circuit
S Vehicle speed sensor
S ECM
S Skid control ECU
S Clutch or brake slips or gear is broken
ff
P0503
(05 −1 83)Vehicle Speed Sensor ”A”
Intermittent/Erratic/high
SCombination meter
S Open or short in vehicle speed sensor circuit
S Vehicle speed sensor
S ECM
S Skid control ECU
S Clutch or brake slips or gear is broken

f
P0504
(05 −1 85)Brake Switch Correlation
SShort in stop lamp switch signal circuit
S Stop lamp switch
S ECM

f
P0505 *3
(05 −1 89)Idle Air Control System
SElectric throttle control system
S Air induction system
S PCV hose connection
ff
P0555
(05 −1 91)Brake Booster Pressure Sensor
Circuit
S Open or short in brake booster pressure sensor circuit
S Brake booster pressure sensor
S Vacuum hose
S ECM
ff
P0556
(05 −1 94)Brake Booster Pressure Sensor
Circuit Range/Performance
SVacuum hose (between the brake booster and intake manifold,
the brake booster and brake booster pressure sensor, and the
intake manifold and manifold absolute pressure sensor)
S Open or short in brake booster pressure sensor circuit
S Brake booster pressure sensor
S Manifold absolute pressure sensor
S Brake booster
S Open or short in stop lamp switch circuit
S Stop lamp switch
S ECM
ff
P0557
(05 −1 91)Brake Booster Pressure Sensor
Circuit Low Input
S Open or short in brake booster pressure sensor circuit
S Brake booster pressure sensor
S Vacuum hose
S ECM
ff
P0558
(05 −1 91)Brake Booster Pressure Sensor
Circuit High Input
S Open or short in brake booster pressure sensor circuit
S Brake booster pressure sensor
S Vacuum hose
S ECM
ff
P0560
(05 −1 99)System VoltageSOpen in back −up power source circuit
S ECMff
P057 1
(*5)Brake Switch ”A” CircuitS Cruise control system
f
P0604
(05 −202)Internal Control Module Random
Access Memory (RAM) ErrorSECMff
P0606
(05 −202)ECM/PCM ProcessorSECMff

056HH–07
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DIAGNOSTICS CRUISE CONTROL SYSTEM (2AZ–FSE)(From
February, 2004)05–313
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
DIAGNOSTIC TROUBLE CODE CHART
If a trouble code is indicated while checking DTCs, inspect the circuit li\
sted for that code in the table below,
and proceed to the applicable page.
DTC No.
(See Page)Circuit InspectionTrouble Area
P0500/21 ( 05–317 )Vehicle speed sensor circuit
Vehicle speed sensor
 Vehicle speed sensor signal circuit
 ECM
P0503/23
( 05–317 )Vehicle speed sensor circuit
Vehicle speed sensor
 Vehicle speed sensor signal circuit
 ECM
P0571/52
( 05–318 )Stop light switch circuit
Stop lamp switch assy
 Stop lamp switch assy circuit
 ECM
P0607/54
( 05–321 )Input signal circuitECM

05KYC–01
F40034DLC3
12 3 4567 8 12 3 4567 8
9 1011 12131415 16
05–306– DIAGNOSTICSCRUISE CONTROL SYSTEM (2AZ–FSE)(From
February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
PRE–CHECK
1. DIAGNOSIS SYSTEM
(a) Description
The ECM stores trouble codes when trouble occurs on
the vehicle.
The diagnosis system allows for reading of the trouble
codes from the DLC3. If the CRUISE main indicator light
does not come on after DTC check, it means a malfunc-
tion has occurred in the cruise control system.
Use the intelligent tester II to check and solve the prob-
lem.
(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 the DLC3 complies with ISO 15031–3
and matches the ISO 9141–2/ISO 14230 format.
Symbols (Terminals No.)Terminal DescriptionConditionSpecified Condition
SIL(7) – SG(5)Bus ”+” lineDuring transmissionPulse generation
CG(4) – Body groundChassis groundAlwaysBelow 1 Ω
SG(5) – Body groundSignal groundAlwaysBelow 1 Ω
BAT(16) – Body groundBattery positiveAlways11 to 14 V
HINT:
If the display shows ”UNABLE TO CONNECT TO VEHICLE” af-
ter connecting the intelligent tester II to the DLC3 and turning
the ignition to the ON position, there is a problem with either the
vehicle or the tool. (Intelligent tester ll only)
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, it suggests the problem is the
tool’s own. In this case, consult Service Department listed
in the tool’s instruction manual.

N17520
(2)
I34749
CRUISE main
indicator light
BE4034
Indicator Light:ON
OFF 1.5 sec. 0.5 sec.
–
DIAGNOSTICS CRUISE CONTROL SYSTEM (2AZ–FSE)(From
February, 2004)05–307
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
(c) Check the indicator.
(1) Turn the ignition switch to the ON position.
(2) Check that the CRUISE main indicator light comeson when the cruise control main switch ON–OFF
button is pushed on, and that the indicator light
goes off when the ON–OFF button is pushed off.
HINT:
If there is a problem with the indicator light, inspect the CRUISE
main indicator light circuit ( see page 05–327).
HINT:
If a malfunction occurs in the vehicle speed sensors, stop lamp
switch assy or other related parts during cruise control driving,
the ECM actuates AUTO CANCEL of the cruise control. Then
the CRUISE main indicator light starts to blink, informing the
driver of the malfunction. At the same time, data of the malfunc-
tion is stored as a diagnostic trouble code (DTC).

C52361
DLC3:CG
TC
I41985
Normal System Code: Diagnosis Trouble Code:
0.25 sec.
0.25 sec.
ON
OFF ON
OFF 0.5 sec.
0.5 sec. 1.5 sec. 2.5 sec.
4.5 sec.
Code 21 Code 52
05–308
–
DIAGNOSTICS CRUISE CONTROL SYSTEM (2AZ–FSE)(From
February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
(d) Output DTCs using diagnosis check wire. (1) Using SST, create a short–circuit between terminalsTC and CG of the DLC3.
(2) Turn the ignition switch to the ON position.
(3) Read and record DTCs from the CRUISE main indi- cator light on the combination meter. As examples,
refer to the chart below for the blinking patterns of
the normal system code and diagnosis trouble code
21 and 52.
HINT:
If the CRUISE main indicator light does not blink because of any
DTC or in the normal code blinking pattern, inspect the following
circuits.
Relevant CircuitSee Page
Diagnosis circuit05–328
CRUISE main indicator circuit05–327

I39609
LHD:
DLC3Intelligent Tester II
I39608
RHD:
DLC3 Intelligent Tester II
– DIAGNOSTICSCRUISE CONTROL SYSTEM (2AZ–FSE)(From
February, 2004)05–309
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
2. USING INTELLIGENT TESTER II
(a) Connect the intelligent tester II to the DLC3.
(b) Turn the ignition switch to the ON position.
(c) Read the DTCs on the tester screen.
HINT:
Intelligent tester II has a ”Snapshot” function which records the
monitored data.
Refer to the intelligent tester II operator’s manual for further de-
tails.

05–310– DIAGNOSTICSCRUISE CONTROL SYSTEM (2AZ–FSE)(From
February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
3. DATA LIST
(a) While the intelligent tester II is connected to the DLC3 with the ignition switch in the ON position, the
CRUISE CONTROL data list can be displayed. Follow the prompts on the tester screen to access the
data list.
CC (ECM):
ItemMeasurement Item /
Display (Range)Normal ConditionDiagnostic Note
CCS Vehicle SpdVehicle speed / min.: 0 km/h (0
mph), max.: 255 km/h (158 mph)Actual vehicle speed–
CCS Mem Vehicle Spd
Cruise control memorized speed /
min.: 36 km/h (22.5 mph), max.:
200 km/h (125 mph)
Actual stored vehicle speed–
Throttle Opening AngleRequired throttle opening angle /
min.: 0, max.: 125Actual required throttle opening–
Cruise ControlCruise control system active
condition / ON or OFFON: Cruise control activated
OFF: Cruise control inactivated–
Main SW M–CPUMain SW signal (Main CPU) / ON
or OFFON: Main SW ON (Pushed on)
OFF: Main SW OFF (Pushed off)”3”
Main SW S–CPUMain SW signal (Sub CPU) / ON
or OFFON: Main SW ON (Pushed on)
OFF: Main SW OFF (Pushed off)”3”
CCS Ready M–CPUCruise control system standby
condition (Main CPU) / ON or OFFON ⇔ OFF: Change ON/OFF
each time Main SW is pushed in.”1”
CCS Ready S–CPUCruise control system standby
condition (Sub CPU) / ON or OFFON ⇔ OFF: Change ON/OFF
each time Main SW is pushed in.”1”
CCS indicator M–CPUCruise indicator signal (Main CPU)
/ ON or OFFON: ”CRUISE” ON
OFF: ”CRUISE” OFF”2”
CCS indicator S–CPUCruise indicator signal (Sub CPU)
/ ON or OFFON: ”CRUISE” ON
OFF: ”CRUISE” OFF”2”
Cancel SwitchCANCEL SW signal / ON or OFFON: CANCEL SW ON
OFF: CANCEL SW OFF–
SET/COAST SwitchSET/COAST SW signal / ON or
OFFON: SET/COAST SW ON
OFF: SET/COAST SW OFF–
RES/ACC SwitchRES/ACC SW signal / ON or OFFON: RES/ACC SW ON
OFF: RES/ACC SW OFF–
Stp Light SW M–CPUStop lamp SW signal (Main CPU) /
ON or OFFON: Brake pedal depressed
OFF: Brake pedal released–
Stp Light SW S1–CPUStop lamp SW signal (Sub CPU) /
ON or OFFON: Brake pedal depressed
OFF: Brake pedal released–
Stp Light SW S2–CPUStop light SW signal (Sub CPU) /
ON or OFFON: Brake pedal depressed
OFF: Brake pedal released–
Shift D PositionPNP SW signal (D position) / ON
or OFFON: Shift D position
OFF: Any shift position except D–
HINT:
”3” is OK but ”1” is NG → ECM failure
”1” is OK but ”2” is NG → DTC output or ECM failure
”3” is OK but the cruise indicator does not come on → CRUISE main indicator, wire harness or ECM failure

I42012
(1)
(3)
I42013
(4)
(1)
I42012
(1)
(3)
– DIAGNOSTICSCRUISE CONTROL SYSTEM (2AZ–FSE)(From
February, 2004)05–311
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
4. DTC CLEAR
(a) The following methods will erase the DTCs and freeze frame data.
(1) The intelligent tester II can be used to erase the codes.
(2) Disconnecting the battery terminal or EFI No.1 fuse can also erase the codes.
(b) After completing repair, the DTC retained in the memory can be cleared by removing the EFI No.1 fuse
for 1 minute or more with the ignition switch off.
(c) Check that the normal system code is displayed after connecting the fuse.
5. PROBLEM SYMPTOM CONFIRMATION (ROAD TEST)
(a) Inspect the SET function.
(1) Push the ON–OFF button on.
(2) Drive at the required speed (40 km/h (25 mph) or
higher).
(3) Push down the cruise control main switch to SET/
COAST.
(4) After releasing the switch, check that the vehicle
cruises at the set speed.
(b) Inspect the ACC (ACCEL) switch.
(1) Push the ON–OFF button on.
(2) Drive at the required speed (40 km/h (25 mph) or
higher).
(3) Push down the cruise control main switch to SET/
COAST.
(4) Check that vehicle speed increases while the cruise
control main switch is pushed up to RES/ACC, and
that the vehicle cruises at the newly set speed when
the switch is released.
(5) Momentarily push up the cruise control main switch
to RES/ACC and then immediately release it.
Check that vehicle speed increases by approxi-
mately 1.6 km/h (1.0 mph) (Tap–up function).
(c) Inspect the COAST function.
(1) Push the ON–OFF button on.
(2) Drive at the required speed (40 km/h (25 mph) or
higher).
(3) Push down the cruise control main switch to SET/
COAST.
(4) Check that vehicle speed decreases while the
cruise control main switch is pushed down to SET/
COAST, and that the vehicle cruises at the newly
set speed when the switch is released.
(5) Momentarily push down the cruise control main
switch to SET/COAST, and then immediately re-
lease it.
Check that vehicle speed decreases by approxi-
mately 1.6 km/h (1.0 mph) (Tap–down function).