Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 04 05 20ahm cic02003
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05-455
DIAGNOSTICS - ABS WITH EBD & BA & TRAC & VSC SYSTEM 05BY0-04
DTC C0200/31 RIGHT FRONT SPEED SENSOR
DTC C0205/32 LEFT FRONT SPEED SENSOR CIRCUIT
DTC C1235/35 FOREIGN MATTER IS ATTACHED ON TIP OF
RIGHT FRONT SENSOR
DTC C1236/36 FOREIGN MATTER IS ATTACHED ON TIP OF
LEFT FRONT SENSOR
CIRCUIT DESCRIPTION
The speed sensor detects wheel speed and sends the ap-
Speed Sensor propriate signals to the ECU. These signals are used to control
Rotor N S Magnet the ABS control system. The front and rear rotors have 48
Coil
serrations, respectively.
To ECU When the rotors rotate, the magnetic field emitted by the perma-
nent magnet in the speed sensor generates an AC voltage.
Since the frequency of this AC voltage changes in direct propor-
Low Speed
tion to the speed of the rotor, the frequency is used by the ECU
High Speed to detect the speed of each wheel.
+V
BR3583 -V
BR3582 F00010
DTC No. DTC Detecting Condition Trouble Area
S With vehicle speed at 10 km/h or more, pulses are not
input for 15 (2WD) or 30 (4WD) sec. S Right front, left front, right rear, left rear speed sensor
C0200 / 31
S Momentary interruption of sensor signal of faulty wheel S Each speed sensor circuit
C0205 / 32
occurs 7 times or more. S Sensor rotor
S Sensor signal circuit is open for 0.5 sec. or more.
C1235/35 With vehicle speed at 20 km/h or more, sensor signal of S Right front, left front, right rear, left rear speed sensor
C1236/36 faulty wheel generated noise for 5 sec. or more. S Each speed sensor circuit
S DTC Nos. C0200/31 and C1330/35 are for the right front speed sensor.
S DTC Nos. C0205/32 and C1331/36 are for the left front speed sensor.
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 638
05-456
DIAGNOSTICS - ABS WITH EBD & BA & TRAC & VSC SYSTEM
WIRING DIAGRAM
Skid Control ECU
with Actuator
18
L-W
S3 FL+
1
A3
ABS Speed Sensor
Front LH 4
2 O
S3 FL-
3
B
S3 FR+
1
A4
ABS Speed Sensor
Front RH 17
2 Y
S3 FR-
F40884
INSPECTION PROCEDURE
Start the inspection from step 1 if you are using the hand-held tester and start from step 2 if you are not using
hand-held tester.
1 READ VALUE OF HAND-HELD TESTER(FRONT SPEED SENSOR)
(a) Connect the hand-held tester to the DLC3.
(b) Start the engine.
(c) Select the DATA LIST mode on the hand-held tester.
(d) Check that there is no difference between the speed value output from the speed sensor displayed
on the hand-held tester and the speed value displayed on the speedometer when driving the vehicle.
OK:
There is almost no difference in the displayed speed value.
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