TOYOTA AVENSIS 2005 Service Repair Manual

I34749
BE4034
Indicator Light1.5 sec. 0.5 sec.
ON
OFF
C52361
DLC3 CG
TC
I03610
Normal Code
0.25 sec.
0.25 sec.
ON
OFF
ON
OFF
2.5 sec.
0.5 sec.1.5 sec.
Code 52
Code 52
0.5 sec.
±
DIAGNOSTICS CRUISE CONTROL SYSTEM
05±1701
AVENSIS REPAIR MANUAL (RM1018E)
(c)Check the indicator.
(1)Turn the ignition switch to the ON position.
(2)Check that the CRUISE MAIN indicator light comeson when the main switch is ON, and that the indica-
tor light goes off when the main switch is OFF.
HINT:
If there is a problem with the indicator, inspect the cruise main
indicator light circuit (See page 05±1722).
(d)Check the DTC.
HINT:
If a malfunction occurs in the vehicle speed sensors or stop
lamp switch assy, etc. during cruise control driving, the ECU ac-
tuates AUTO CANCEL of the cruise control and then the
CRUISE MAIN indicator light will start to blink, informing the
driver of a malfunction. At the same time, data of the malfunc-
tion is stored as a diagnostic trouble code, or DTC.
(e)Output of the DTC using diagnosis check wire. (1)Using SST, connect terminals TC and CG
of DLC3.
SST09843±18040
(2)Turn the ignition switch to the ON position.
(3)Read the DTC on the CRUISE MAIN indicator light.
HINT:
If the DTC is not output, inspect the cruise main indicator light
circuit (See page 05±1722) and diagnosis circuit (See page
05±1729).
For example, the normal blinking pattern and the blinking pat-
tern for code 52 are shown in the illustration.

05±1702
± DIAGNOSTICSCRUISE CONTROL SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
2. USING HAND±HELD TESTER
(a) Connect the hand±held tester to the DLC3.
(b) Monitor the ECU data by following the prompts on the tester screen.
HINT:
Hand±held tester has a ºSnapshotº function which records the monitored data.
Refer to the hand±held tester operator's manual for further details.
3. DATA LIST
HINT:
From the DATA LIST displayed by the the hand±held tester, you can read the value of the switch, the sensor
and so on without removing parts. Reading the DATA LIST as the first step to troubleshooting is one way
to shorten labor time.
(a) Connect the hand±held tester to the DLC3.
(b) Turn the ignition switch to the ON position.
(c) According to the display on the tester, read the ºDATA LISTº.
ItemMeasurement Item /
Display (Range)Normal ConditionDiagnostic Note
VEHICLE SPDVehicle speed / min.: 0 km/h (0
mph), max.: 255 km/h (158 mph)Actual vehicle speed±
MEMORY SPD
Stored vehicle speed / min.: 36
km/h (22 mph), max.: 200 km/h
(124 mph)
Actual stored vehicle speed±
THROTTLERequired throttle opening angle /
min.: 0
, max.: 125
Actual required throttle opening±
CRUISE CONTROLCruise control system active
condition / ON or OFFON : Cruise control activated
OFF : Cruise control inactivated±
MAIN SW (MAIN)Main SW signal (Main CPU) / ON
or OFFON : Main SW ON (Pushed in)
OFF: Main SW OFF (Pushed out)º3º
MAIN SW (SUB)Main SW signal (Sub CPU) / ON
or OFFON : Main SW ON (Pushed in)
OFF: Main SW OFF (Pushed out)º3º
CCS READY MCruise control system standby
condition (Main CPU) / ON or OFFON ± OFF : Change ON/OFF
each time Main SW is pushed in.º1º
CCS READY SCruise control system standby
condition (Sub CPU) / ON or OFFON ± OFF : Change ON/OFF
each time Main SW is pushed in.º1º
CCS INDICATOR MCruise indicator signal (Main CPU)
/ ON or OFFON : ºCCS READYº ON
OFF : ºCCS READYº OFFº2º
CCS INDICATOR SCruise indicator signal (Sub CPU)
/ ON or OFFON : ºCCS READYº ON
OFF : ºCCS READYº OFFº2º
CANCEL SWCANCEL SW signal / ON or OFFON : CANCEL SW ON
OFF : CANCEL SW OFF±
SET/COAST SWCOAST/SET SW signal / ON or
OFFON : COAST/SET SW ON
OFF : COAST/SET SW OFF±
RES/ACC SWACCEL/RES SW signal / ON or
OFFON : ACCEL/RES SW ON
OFF : ACCEL/RES SW OFF±
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±

I35838
(1)
(3)
I35839
(3)
(1)
± DIAGNOSTICSCRUISE CONTROL SYSTEM
05±1703
AVENSIS REPAIR MANUAL (RM1018E)STP LIGHT SW1 S
Stop light SW signal (Sub CPU) /
ON or OFFON : Brake pedal depressed
OFF : Brake pedal released±
SHIFT D POSPNP SW signal (D position) / ON
or OFFON : Shift D position
OFF : Except shift D position±
HINT:
º3º is OK but º1º is NG
ECM failure
º1º is OK but º2º is NG
DTC output or ECM failure
º3º is OK but cruise indicator does not turn on
CRUISE MAIN indicator or wire harness or ECM failure
4. DTC CLEAR
(a) The following methods will erase the DTCs and freeze frame data.
(1) The hand±held tester can be used to erase the codes.
(2) Disconnecting the battery terminals or EFI No.1 fuse can also erase the codes (1AZ±FSE).
Disconnecting the battery terminals or EFI the fuse (1CD±FTV).
(b) After completing repairs, 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 to the OFF position.
(c) Check that the normal code is displayed after connecting the fuse.
5. PROBLEM SYMPTOM CONFIRMATION (ROAD TEST)
(a) Inspect the SET switch.
(1) Push the main switch button to ON.
(2) Drive at a desired speed (40 km/h (25 mph) or high-
er).
(3) Push down the control switch to the SET/COAST
position.
(4) After releasing the switch, check that the vehicle
cruises at the desired speed.
(b) Inspect the 'ACC' switch.
(1) Push the main switch button to ON.
(2) Drive at a desired speed (40 km/h (25 mph) or high-
er).
(3) Check that the vehicle speed increases when the
control switch is pushed up to RES/ACC, and that
the vehicle cruises at the set speed when the switch
is released.
(4) Push the control switch to RES/ACC, and then im-
mediately release it. Check that the vehicle speed
increases by about 1.6 km/h (Tap±up function).

I35838
(1)
(3)
I35840
(3)(1)
I35839
(3)
(1) 05±1704
± DIAGNOSTICSCRUISE CONTROL SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
(c) Inspect the 'COAST' switch.
(1) Push the main switch button to ON.
(2) Drive at a desired speed (40 km/h (25 mph) or high-
er).
(3) Check that the vehicle speed decreases while the
control switch is pushed down to SET/COAST, and
the vehicle cruises at the set speed when the switch
is released.
(4) Push the control switch to SET/COAST, and then
immediately release it. Check that the vehicle
speed decreases by about 1.6 km/h (Tap±down
function).
(d) Inspect the CANCEL switch.
(1) Push the main switch button to ON.
(2) Drive at a desired speed (40 km/h (25 mph) or high-
er).
(3) After doing one of the following, check that the
cruise control system is cancelled and that the nor-
mal driving mode is resumed.

Depressing the brake pedal.

Depressing the clutch pedal (M/T).

Shifting to any gear besides D (A/T).

Pushing the main switch button to OFF.

Pulling the control switch to CANCEL.
(e) Inspect the RESUME switch.
(1) Push the main switch button to ON.
(2) Drive at a desired speed (40 km/h (25 mph) or high-
er).
(3) After doing one of the following, check that the
cruise control system is cancelled and that the nor-
mal driving mode is resumed.

Depressing the brake pedal.

Depressing the clutch pedal (M/T).

Shift to any gear besides D (A/T).

Pulling the control switch to CANCEL.
(4) After the control switch is press towards RES/ACC
at the driving speed of more than 40 km/h (25 mph),
check that the vehicle resumes the same speed
maintained before the cancellation.

05ADJ±04
CRUISE CONTROL SYSTEM Check Sheet
Inspector 's name:
Customer 's Name
Date of VehicleVIN
Production Date
Licence No.
Odometer Reading / /km
Mile
Condition of
Problem Occurrence
Date of Problem
Frequency
Occurrence
Problem Occurs?
Vehicle Speed when
Problem Occurred / /
 Continuous  Intermittent ( Times a day)
km
Mile Brought in
 Auto cancel
occurs
Driving condition
 City driving  Freeway  Up hill  Down hill

After cancel occurred, did the driver activate cruise control
again?
 Yes  No
 Cancel does not
occur With brake ON
 Clutch pedal depressed (M/T)
 Except D range shift (A/T)
 When control SW turns to CANCEL position
 Cruise control
malfunction Slip to acceleration side
 Slip to deceleration side
 Hunting occurs
 O/D cut off does not occur (A/T)
 O/D does not return (A/T)
 Switch
malfunction SET  'ACCEL'  'COAST'  RESUME  CANCEL
 Remains ON  Does not light up  Blinks Symptoms
DTC Check1st Time2nd Time
 Normal Code  Malfunction Code (Code )
 Normal Code  Malfunction Code (Code )  CRUISE MAIN
indicator light
± DIAGNOSTICSCRUISE CONTROL SYSTEM
05±1699
AVENSIS REPAIR MANUAL (RM1018E)
CUSTOMER PROBLEM ANALYSIS CHECK

05ADI±04
±
DIAGNOSTICS CRUISE CONTROL SYSTEM
05±1697
AVENSIS REPAIR MANUAL (RM1018E)
CRUISE CONTROL SYSTEM
HOW TO PROCEED WITH TROUBLESHOOTING
1 VEHICLE BROUGHT TO WORK SHOP
2CUSTOMER PROBLEM ANALYSIS (See page 05±1699)
3CHECK AND CLEAR DTCS (See page 05±1700)
4 PROBLEM SYMPTOM CONFIRMATION
SYMPTOM DOES NOT OCCUR (GO TO STEP 5)
SYMPTOM OCCURS (GO TO STEP 6)
5SYMPTOM SIMULATION (See page 01±22)
6DTC CHECK (See page 05±1700)
MALFUNCTION CODE (GO TO STEP 7)
NORMAL CODE (GO TO STEP 8)
7DTC CHART (See page 05±1705)
GO TO STEP 9
8PROBLEM SYMPTOMS TABLE (See page 05±1709)
9CIRCUIT INSPECTION (See page 05±453)

05±1698
±
DIAGNOSTICS CRUISE CONTROL SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
10TERMINAL OF ECM (See page 05±1707) 11 INDEMNIFICATION OF PROBLEM
12 REPAIR OR REPLACE
13 CONFIRMATION TEST
END
HINT:
Step 3, 6, 9, 13:
Diagnostic steps permit the use of the hand±held tester.

± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
05±1693
AVENSIS REPAIR MANUAL (RM1018E)
DTC B1271 COMBINATION METER ECU
COMMUNICATION STOP
CIRCUIT DESCRIPTION
DTC B1271 is output when communication between the combination meter and integration relay stops for
more than 10 seconds.
DTC No.DTC Detection ConditionTrouble Area
B1271No communication from Combination meter ECU for more
than 10 seconds
Combination meter assy (Combination meter ECU)

Wire harness
05C5T±01

B67809
Battery113
31 MPX1P
Theft Warning ECU Assy
E10 18
H 22
J/C
+B
W±B*
5
T6 I14
MainW±R*
5
AIC1BEAN
(EFI)
B*
3
POWER
EARTH
3
Instrument Panel J/B Assy
(Integration Relay)
ECMCombination Meter Assy
(Combination Meter ECU)
E9 E923 20
C10
BEAN
(BODY) 14
C10 P±B P±B
BEAN
(SECURITY) 15
C10 P±L*
4
MPX2
MPX
20
C11
C1017 J11 J26 J10
J26F F
F
W±R*
6
W±R
6
6
12DOME
B±W IE4
IP14*
5
5*6
B±W
1
1 2
1A
B±G*
1,
2
B±G*1,
2B*3
3
1
1 4B 4A
W±B*6
A
J16
J/CJ17
J/C
IK
IO*
1,
2,
5
*1: 1AZ±FSE
*2: 1AZ±FE, 1ZZ±FE, 3ZZ±FE
*
3: 1CD±FTV
*
4: w/ Theft Deterrent System
*5: LHD
*
6: RHD *
1*2*3
Engine Room R/BFuse Block Assy
Engine Room J/B No. 4*1,
2Engine Room R/B No. 3*3
DCC
1
AA
W±B*
6
W±BA
J15
J/C
IL*
3,
5
05±1694
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
WIRING DIAGRAM

B68156
C10
Combination Meter Assy
(Combination Meter ECU) Wire Harness Side
T6
Theft Warning ECU AssyE10
*1
ECM
E9
*2,
3
ECM
I14
Instrument Panel J/B Assy
(Integration Relay)
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
05±1695
AVENSIS REPAIR MANUAL (RM1018E)
1 CHECK RESISTANCE OF COMMUNICATION LINE
(a) Disconnect the C10, E10 or E9, T6 and I14 connectors.
(b) Check the resistance between wire harness side connec-
tors.
Standard:
Tester ConnectionSpecified Condition
*1
C10±13 (BEAN) (EFI) ±
E10±18 (MPX1)
*2
C10±13 (BEAN) (EFI) ±
E9±23 (MPX1)
*3
C10±13 (BEAN) (EFI) ±
E9±20 (MPX1)Below 1

C10±14 (BEAN) (BODY) ±
I14±22 (MPX2)
C10±15 (BEAN) (SECURITY) ±
T6±31 (MPX)
HINT:
*
1: 1AZ±FSE
*
2: 1AZ±FE, 1ZZ±FE, 3ZZ±FE
*
3: 1CD±FTV
NG REPAIR OR REPLACE HARNESS AND
CONNECTOR
OK