warning TOYOTA AVENSIS 2005 Service Service Manual

± DIAGNOSTICSABS WITH EBD & BA & TRC & VSC SYSTEM
05±761
AVENSIS REPAIR MANUAL (RM1018E)
ItemDiagnostic Note Vehicle Condition / Test Details
SRH & SRRTurns ABS solenoid SRH & SRR ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SRLR & SRLHTurns ABS solenoid SRLR & SRLH ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SFRH & SFLHTurns ABS solenoid SFRH & SFLH ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SRCF & SRCRTurns ABS solenoid SRCF & SRCR ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SRMF & SRMRTurns ABS solenoid SRMF & SRMR ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SOL RELAYTurns ABS solenoid relay ON / OFF
Operation of solenoid
(clicking sound) can be
heard
ABS MOT RELAYTurns ABS motor relay ON / OFFOperation of motor can be
heard
ABS WARN LIGHTTurns ABS warning light ON / OFFObserve combination me-
ter
VSC WARN LIGHTTurns VSC warning light ON / OFFObserve combination me-
ter
VSC / TRC OFF INDTurns VSC / TRC OFF indicator ON / OFFObserve combination me-
ter
SLIP INDI LIGHTTurns SLIP indicator light ON / OFFObserve combination me-
ter
BRAKE WRN LIGHTTurns BRAKE warning light ON / OFFObserve combination me-
ter
VSC WARN BUZTurns VSC warning buzzer ON / OFFBuzzer can be heard

C52361
DLC3Ts
CG
C52361
DLC3 Tc
CG
−
DIAGNOSTICS ABS WITH EBD & BA & TRC & VSC SYSTEM
05−763
5. Without using hand −held tester:
ABS SENSOR SIGNAL CHECK (TEST MODE)
NOTICE:
After replacing the steering angle sensor and/or ECU, per-
form zero point calibration of the steering angle sensor or
system decision (When replacing the ECU) (See step 7.).
HINT:
If the ignition switch is turned from ON to ACC or LOCK during
test mode, the DTCs will be erased.
(a) Procedures for test mode:
(1) Turn the ignition switch OFF.
(2) Using SST, connect terminal Ts and CG of the DLC3.
SST 09843 −18040
(3) Check that the steering wheel is in the straight −
ahead position and shift the shift lever to P range.
(4) Turn the ignition switch ON.
(5) Check that the ABS warning light blinks.
HINT:
If the ABS warning light does not blink, inspect the ABS warning
light circuit or Ts terminal circuit.
Trouble areaSee Page
Ts terminal circuit05− 854
ABS warning light circuit05−827
(b) Check the speed sensor signal.
(1) Drive the vehicle straight forward at the speed of 45
km/h (28 mph) or over for several seconds and
check that the ABS warning light goes off.
HINT:
The sensor check may not be completed if the wheels spin or
the steering wheels are steered during this check.
(c) Stop the vehicle.
(d) Using SST, connect terminal Tc and CG of the DLC3. SST 09843 −18040
(e) Read the number of blinks of the ABS warning light.
HINT:
S See the list of DTCs on page 05− 766.
SIf every sensor is normal, the normal code is output (A
cycle of 0.25 second ON and 0.25 second OFF is re-
peated).

BR3893
Malfunction Code (Example Code 72 76)
ON
OFF
0.5 sec. 0.5 sec.1.5 sec.
0.5 sec.2.5 sec.
0.5 sec. 72 7 6
4 sec.
Repeat 05±764
± DIAGNOSTICSABS WITH EBD & BA & TRC & VSC SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)

If 2 or more DTCs are detected at the same time, the low-
est numbered code is displayed first.
(f) After the check, disconnect the SST from terminal Ts and
CG, Tc and CG of DLC3 and turn the ignition switch to
OFF.
SST 09843±19040
6. With using hand±held tester:
ABS SENSOR SIGNAL CHECK (TEST MODE)
NOTICE:
After replacing the steering angle sensor and/or ECU, perform zero point calibration of the steering
angle sensor or system decision (When replacing the ECU) (See step 7.).
HINT:
If the ignition switch is turned from ON to ACC or LOCK during test mode, the DTCs will be erased.
(a) Hook up the hand±held tester to the DLC3.
(b) Perform step 5. (c) to (d) on the previous page.
(c) Read the DTC by following the prompts on the tester screen.
HINT:
Please refer to the hand±held tester operator's manual for further details.
7. STEERING ANGLE SENSOR ZERO POINT CALIBRATION
NOTICE:
When replacing the steering angle sensor with column assembly or ECU, Engine and ECT ECU (A/T),
Engine ECU (M/T) or when adjusting the front wheel alignment or steering wheel center point in ac-
cordance with the removing or installing or replacing the suspension, axle or steering parts, make
sure to perform steering angle sensor zero point calibration.
(a) Using SST, connect terminals Ts and CG of the DLC3
.
SST 09843±18040
(b) Turn the ignition switch ON and keep the shift lever at P range.
(c) Make sure the steering off center angle is less than 3
when assembling the steering wheels (Smaller
value is desirable).
(d) Press the TRC OFF switch and hold it.
(e) Check that the following conditions are satisfied.
HINT:

Engine warning light comes on.

ABS warning light is blinking.
(f) Depress the brake pedal 3 times or more within 2 seconds.

0542O±04
ABS & EBD & BA Check SheetInspector 's
Name:
Customer 's Name
Date Vehicle
Brought InOdometer Reading/ /
/ /
Date Problem First Occurred
Frequency Problem Occurs/ /
ContinuousIntermittent ( times a day)
ABS does not operate.
ABS does not operate efficiently.
ABS Warning Light
Remains ONDoes not Light Up
DTC Check1st Time
2nd TimeNormal Code
Malfunction Code (Code )
Normal CodeMalfunction Code (Code )
Symptomskm
miles
Brake Warning
Light
(PKB released)Remains ONDoes not Light Up
BA does not operate.
EBD does not operate.
STOP LIGHT SW
SYSTEM
Freeze Frame Data
#IG ON
VEHICLE SPDON
OFF
NO SYS
ABS
BA
FAIL SF
km/h
MPH VIN
Licence No. Production Date 05±754
± DIAGNOSTICSABS WITH EBD & BA & TRC & VSC SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
CUSTOMER PROBLEM ANALYSIS CHECK

Inspector 's
Name:
Customer 's Name
Date Vehicle
Brought InOdometer Reading/ /
/ /
Date Problem First Occurred
Frequency Problem Occurs/ /
ContinuousIntermittent ( times a day)
TRAC does not operate. (Wheels spin when starting rapidly.)
DisplaysDoes not Display
DTC Check1st Time
2nd TimeNormal Code
Malfunction Code (Code )
Normal CodeMalfunction Code (Code )
Symptomskm
miles
Light TRC OFF Indicator
Light SLIP Indicator
Remains ONDoes not Light Up
Check Item
NormalMalfunction Code (Code )
NormalMalfunction Code (Code )
ABS Warning Light
Malfunction
Indicator Light TRC & VSC Check Sheet
Remains ONDoes not Light Up
VSC does not operate. (Wheels sideslip at the time of sharp turning.)
VSC Warning
Indicator
Skid Control
BuzzerDoes not SoundSounds
VSC/TRC OFF SW
SYSTEM
Freeze Frame Data
SHIFT POSITION
YAW RATON
OFF
VSC/TRC
P, NR
D
deg/s
VFAIL
23
4L
MAS CYL PRESS
THROTTLE
MAS PRESS GRADE
G (RIGHT&LEFT)
G (BACK&FORTH)
STEERING ANG
deg
deg
MPa/s
G
G VIN
Licence No.Production Date
± DIAGNOSTICSABS WITH EBD & BA & TRC & VSC SYSTEM
05±755
AVENSIS REPAIR MANUAL (RM1018E)

± DIAGNOSTICSABS WITH EBD & BA & TRC & VSC SYSTEM
05±753
AVENSIS REPAIR MANUAL (RM1018E)
10 Identification of Problem
11 Repair
12 Confirmation Test
End
HINT:
Step 3, 6, 9, 12:
Diagnostic steps permitting the use of the hand±held tester.
Fail safe function:
When a failure occurs in the ABS & BA & TRC & VSC systems, the ABS warning light, the VSC warning light
and the TRC OFF indicator light come on and the ABS & BA & TRC & VSC operations are prohibited. In
addition to this, when the failure that disables the EBD operation occurs, the brake warning light comes on
as well and the EBD operation is prohibited.

05±744
± DIAGNOSTICSABS WITH EBD SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
BRAKE WARNING LIGHT CIRCUIT
CIRCUIT DESCRIPTION
The Brake warning light comes on when the brake fluid is insufficient, the parking brake is applied or the EBD
is defective.
0577X±04

05±746
±
DIAGNOSTICS ABS WITH EBD SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1RECONFIRM DTC
(a)Check the DTC (See page 05±699). OK:
Normal code
NGREPAIR CIRCUIT INDICATED BY OUTPUTCODE
OK
2INSPECT PARKING BRAKE SWITCH CIRCUIT
(a)Check for an open or short circuit in the parking brake switch circuit (See page 01±32). NGREPAIR OR REPLACE PARKING BRAKESWITCH CIRCUIT
OK
3INSPECT BRAKE FLUID LEVEL WARNING SWITCH CIRCUIT
(a)Check the brake fluid level in reservoir.
(b)Check for an open or shot circuit in brake fluid level warning switch ci\
rcuit (See page 01±32). NG REPAIR OR REPLACE BRAKE FLUID LEVELWARNING SWITCH CIRCUIT
OK
4 INSPECT VACUUM WARNING SWITCH CIRCUIT
(a) Check for an open or short circuit in harness and connector between the vacuum warning switch and skid control ECU (See page 01±32).
NG REPAIR OR REPLACE HARNESS ORCONNECTOR
OK
5 INSPECT COMBINATION METER ASSEMBLY(BRAKE WARNING LIGHT CIRCUIT)
(a)Check for an open or short circuit in the combination meter (See page 01±32). NG REPAIR OR REPLACE COMBINATION METERASSEMBLY
OK

± DIAGNOSTICSABS WITH EBD SYSTEM
05±741
AVENSIS REPAIR MANUAL (RM1018E)
ABS WARNING LIGHT CIRCUIT (DOES NOT LIGHT UP)
CIRCUIT DESCRIPTION
If the ECU detects trouble, it will prohibit ABS control, turn on ABS warning light, and store the DTC.
Connect terminals Tc and CG of the DLC3 to make the ABS warning light blink and output the DTC.
056SW±09

±
DIAGNOSTICS ABS WITH EBD SYSTEM
05±743
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
HINT:
Start the inspection from step 1 if you are using the hand±held tester and\
start from step 2 if you are not using
the hand±held tester.
1PERFORM ACTIVE TEST BY HAND±HELD TESTER(ABS WARNING LIGHT)
(a)Check that ºONº and ºOFFº of the ABS warning light is shown \
on the combination meter by the
hand±held tester.
OKREPLACE BRAKE ACTUATOR ASSY(See page 32±54)
NG
2INSPECT COMBINATION METER ASSY(ABS WARNING LIGHT) (See page 71±1)
(a)Disconnect the connector from the skid control ECU.
(b)Turn the ignition switch ON.
(c)Check the ABS warning light.
OK:
ABS warning light comes on
NGREPAIR OR REPLACE COMBINATION METERASSY
OK
3CHECK HARNESS AND CONNECTOR(WA CIRCUIT)
(a)Check for a short circuit in harness and connector between terminal WA of the skid control ECU and combination meter (See page 01±32).
NG REPAIR OR REPLACE HARNESS ORCONNECTOR
OK
REPLACE BRAKE ACTUATOR ASSY(See page 32±54)