2005 TOYOTA AVENSIS sensor

± DIAGNOSTICSABS WITH EBD & BA & TRC & VSC SYSTEM
05±759
AVENSIS REPAIR MANUAL (RM1018E)
ItemDiagnostic Note Normal Condition Measurement Item /
Range (Display)
SRLRABS solenoid SRLR / ON
or OFFON : Operate±
SRLHABS solenoid SRLH / ON
or OFFON : Operate±
SRCF(SA1)TRC solenoid SRCF(SA1)
/ ON or OFFON : Operate±
SRCR(SA2)TRC solenoid SRCR(SA2)
/ ON or OFFON : Operate±
SRMF(SMCF,SA3)
TRC solenoid
SRMF(SMCF,SA3)1 / ON
or OFF
ON : Operate±
SRMR(SMCR,STR)
TRC solenoid
SRMR(SMCR,STR) / ON
or OFF
ON : Operate±
ENGINE SPD
Engine Speed/
Min.: 0 rpm, Max.: 6000
rpm
Actual engine speed±
VEHICLE SPD
Maximum wheel speed
sensor reading / min.: 0
km/h (0 MPH), max.: 326
km/h (202 MPH)
Actual vehicle speedSpeed indicated on
speedometer
YAW RATE
Yaw rate sensor/
Min.: ±128 deg/s, Max.:
128 deg/s
±
YAW ZERO VALUE
Memorized zero value/
Min.: ±128 deg/s, Max.:
128 deg/s
±
STEERING ANG
Steering sensor/
Min.: ±1152 deg,
Max.: 1150.875 deg
±
MAS CYL PRS1
Master cylinder pressure
sensor 1 reading / min.: 0
V, max.: 5 VWhen brake pedal is re-
leased : 0.3 ± 0.9 VReading increases when
brake pedal is depressed
TEST MODETest mode / NORMAL or
TESTNORMAL : Normal mode
TEST : During test mode
#CODESNumber of DTC recorded /
min.: 0, max.: 255Min.: 0, max.: 26

05±762
± DIAGNOSTICSABS WITH EBD & BA & TRC & VSC SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
4. FREEZE FRAME DATA
(a) The vehicle (sensor) status memorized during ABS and/or VSC operation or at the time of error code
detection can be displayed using the hand±held tester.
(b) Only one record of the freeze frame data is stored and the freeze frame data generated during ABS
and/or VSC operation are constantly updated. Also, the number of the operations of the ignition switch
ºONº after the freeze frame data is stored can be memorized up to 31 and it can be displayed.
HINT:
If the ignition switch ºONº operation exceeds 31 times, º31º appears on the display.
(c) If the diagnosis code malfunction occurs, the freeze frame data at the occurrence of the malfunction
is stored but the ABS actuation data is deleted.
Hand±held tester displayMeasurement ItemReference Value*
VEHICLE SPDVehicle speedSpeed indication of a meter
STOP LIGHT SWStop light switch signalStop light switch ON: ON, OFF: OFF
# IG ONNumbers of operations of ignition switch ON after
memorizing freeze frame data0 to 31
MAS CYL PRESSMaster cylinder pressure sensor output voltageRelease brake pedal: 0.3 to 0.9 V
Depress brake pedal: 1.5 to 4.5 V
MASS PRESS GRADEMaster cylinder pressure sensor changing gradi-
ent±30 to 200 MPa/s
SYSTEMOperate system
ABS operate: ABS
BA operate: BA
VSC (TRC) operate: VSC (TRC)
YAW RATEYaw rate angle sensor output value±70 to 70
STEERING ANGSteering sensor output valueLeft turn: Increase
Right turn: Drop
THROTTLEThrottleposition sensor output valueRelease accelerator pedal: Approx. 0 degTHROTTLEThrottle position sensor output valueRelease accelerator edal: A rox. 0 deg
Depress accelerator pedal: Approx. 90 deg
G (RIGHT & LEFT)Right and left G±1.869 to 1.869 G
VSC (TRC) OFF SWTRC OFF switch signalTRC OFF SW ON: ON
OFF: OFF
SHIFT POSITIONShift lever position
P: P
R: R
N: N
D: D
2: 2
L: L
*: If no conditions are specifically stated for ºIdlingº, it means the shift lever is at N or P position, the A/C switch
is OFF and all accessory switches are OFF.

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.

± DIAGNOSTICSABS WITH EBD & BA & TRC & VSC SYSTEM
05±765
AVENSIS REPAIR MANUAL (RM1018E)
(g) Check that the skid control buzzer sounds for 3 seconds.
HINT:

Press and hold the TRC OFF switch until the skid control buzzer sounds.
When it starts sounding, turn off the switch.

When the skid control buzzer starts sounding, turn off the TRC OFF switch.

If the skid control buzzer sounds, the sensor calibration is in normal completion.

If the skid control buzzer does not sound, perform the sensor calibration again.

If the skid control buzzer still will not sound, there is malfunction in the steering angle sensor, so check
the DTC.

F45137
Skid Control ECU
with Actuator
W±B (*1) W±B (*1)W±B (*2)W (*2) W (*1) W (*1) W
S2 TS13
W±B (*2)
CB CA6 3IE2 12 J8
J/C
D
A
IO IP CG TS D5
DLC3 1AZ±FE:
4 12
D
ACenter J/B
J16
J/C
*1: LHD
*2: RHD
C87489
Skid Control ECU
with Actuator
W±B (*1) W±B (*1)W±B (*2) W (*2)W (*1) W (*1) W
S2 TS13
W±B (*2)
CB CA6 3IE2 12 J8
J/C
D
A
IP CG TS D5
DLC3 Except 1AZ±FE:
4 12 D
ACenter J/B
J16
J/C
*1: LHD
*2: RHDIO: Gasoline
IL: 1CD±FTV D
B
J20 J21W (*2) J/C
05±750
± DIAGNOSTICSABS WITH EBD SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
TS TERMINAL CIRCUIT
CIRCUIT DESCRIPTION
The sensor check circuit detects troubles in the sensor signal which cannot be detected by the DTC check.
Connecting terminals Ts and CG of the DLC3 starts the check.
WIRING DIAGRAM
05C5D±01

±
DIAGNOSTIC SABS WITH EBD & BA & TRC & VSC SYSTEM
05±807
AVENSIS RE PAIR MANUAL (RM1018E)
DT C C1237/3 7TIRE S OF DIFFERENT SIZE
CIRCUI T DESCRIPTION
DT C No.DTC Detecting ConditionTrouble Area
C1237/37
Detection of any of conditions from 1 through 4:
1. When the ignition switch is ON, the speed di fference
between max. and min. wheel speed is 5 % or more for
20 sec. at vehicle speed 20 km/h (12 mph)or more.
2 . When the ignition switch is ON, the slip di fference be
wheels at either side of vehicle 6 % or more (vehicle
speed: 100 km/h (62 mph) or more).
3 . Continuous ABS control for 60 seconds or more.
4 . Interference on 1 or more wheels for 20 seconds with
the brake pedal depressed, or for 5 seconds when the
brake pedal is not depressed.

Speed sensor

Senso rrotor
INSPECTIO N PROCEDURE
1 INSPEC T TIRE SIZE
N G REPLAC E TIRES SO TH AT ALL 4 TIRES ARE
SAM E IN SIZE
OK
2 INSPECT SPEED SENSOR RO TOR
(a ) Check the speed sensor rotors ( See page 05±774 or 05±778 ).
N G REPLACE SENSOR RO TOR
OK
3 INSPECT SPEED SENSOR
(a) Check the speed sensors ( See page 05±774 or 05±778 ).
N G REPLACE SPEED SENSOR
OK
4 CHECK HARNESS AND CONNEC TOR(SPEED SENSOR ± SKID CONTROL ECU)
(a ) Chec k for an open or short circuit in harness and connector between each terminal of the speed sensor
an d skid control ECU ( See page 01±32).
N G REPAIR OR REPLACE HARNESS OR
CONNEC TOR
OK
REPLAC E ABS & TRACTION ACTU ATOR ASSY( See page 32±57 )
05786±02

± DIAGNOSTICSABS WITH EBD & BA & TRC & VSC SYSTEM
05±801
AVENSIS REPAIR MANUAL (RM1018E)
DTC C1208/54 MALFUNCTION IN STEERING ANGLE
SENSOR CIRCUIT
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
C1231/31
Detection of any of conditions 1 through 7:
1. When the condition that ECU terminal IG1 voltage is 9.8
V or more, and does not receive data from steering
angle sensor continues.
2. Sensor internal failure.
3. The offset value is out of range.
4. Sensor signal changes too rapidly.
5. Steering angle value difference between measured and
reference is out of range.
6. Steering sensor is not centered.
7. Steering sensor signal is out of range.
8. Steering sensor is not calibrated.

Steering angle sensor

Steering angle sensor circuit
05C5R±01