Toyota Sienna Service Manual: Right Rear Wheel Speed Sensor Signal
DESCRIPTION
Refer to DTCs C0200/31, C0205/32, C1235/35 and C1236/36 (See page BC-92).
HINT:
- DTC C0210/33 and C1238/38 are for the right rear speed sensor.
- DTC C0215/34 and C1239/39 are for the left rear speed sensor.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 READ VALUE ON INTELLIGENT TESTER (REAR SPEED SENSOR)
(a) Connect the intelligent tester to the DLC3.
(b) Start the engine.
(c) Select the DATA LIST mode on the intelligent tester.
ABS / VSC: 
(d) Check that there is no difference between the speed value output from the speed sensor displayed by the intelligent tester and the speed value displayed on the speedometer when driving the vehicle
OK: There is almost no difference in the displayed speed value.
HINT: There is tolerance of +- 10 % in the speedometer indication.
2 CHECK SPEED SENSOR AND SENSOR ROTOR SERRATIONS
(a) INSPECTION USING OSCILLOSCOPE:
(1) Connect the oscilloscope to terminals RR+ - RR- or RL+ - RL- of the skid control ECU.
(2) Drive the vehicle at approximately 19 mph (30 km/ h), and check the signal waveform.
OK: A waveform as shown in a figure should be output.
HINT:
- As vehicle speed (wheel revolution speed) in creases, a cycle of the waveform narrows and the fluctuation in the output voltage becomes greater.
- hen noise is identified in the waveform on the oscilloscope, error signals are generated due to the speed sensor rotor's scratches, looseness or foreign matter attached to it.
NOTICE: When replacing the brake actuator assembly, perform zero point calibration (See page BC-70).
REPLACE BRAKE ACTUATOR ASSEMBLY
3 INSPECT REAR SPEED SENSOR
(a) 2WD
(1) Disconnect the skid control sensor connector.
(2) Measure the resistance according to the value(s) in the table below.
Standard resistance:
LH 
RH 
NOTICE: Check the speed sensor signal after replacement (See page BC-72).
(b) 4WD
(1) Remove the seat cushion seatback.
(2) Disconnect the speed sensor connector.
(3) Measure the resistance according to the value(s) in the table below.
Standard resistance:
LH 
RH 
(4) Measure the resistance according to the value(s) in the table below
Standard resistance:
LH 
RH 
NOTICE: Check the speed sensor signal after the replacement. (See page BC-72)
4 CHECK HARNESS AND CONNECTOR (REAR SPEED SENSOR - SKID CONTROL ECU)
(a) Disconnect the skid control ECU connector and the skid control sensor connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
LH 
RH 
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
LH 
RH 
5 CHECK SPEED SENSOR AND SENSOR ROTOR SERRATIONS
(a) INSPECTION USING OSCILLOSCOPE
(1) Connect the oscilloscope to terminals RR+ - RR- or RL+ - RL- of the skid control ECU.
(2) Drive the vehicle at approximately 19 mph (30 km/ h), and check the signal waveform.
OK: A waveform as shown in a figure should be output.
HINT:
- As the vehicle speed (wheel revolution speed) increases, a cycle of the waveform narrows and the fluctuation in the output voltage becomes greater.
- When noise is identified in the waveform on the oscilloscope, error signals are generated due to the speed sensor rotor's scratches, looseness or foreign matter attached to it.
NOTICE: When replacing the brake actuator assembly, perform zero point calibration (See page BC-70).
REPLACE BRAKE ACTUATOR ASSEMBLY
6 CHECK REAR SPEED SENSOR INSTALLATION
(a) 2WD
(1) Check the sensor installation.
OK: There is no clearance between the sensor and rear axle carrier.
(b) 4WD
(1) Check the sensor installation.
OK: There is no clearance between the sensor and rear axle carrier.
The installation bolt is tightened properly.
Torque: 8.0 N*m (82 kgf*cm, 71 in.*lbf)
NOTICE: Check the speed sensor signal after the replacement (See page BC-72).
7 CHECK SPEED SENSOR ROTOR
(a) Remove the rear axle hub and bearing, or rear drive shaft (See page AH-16 for 2WD, or DS-21 for 4WD).
(b) Check the sensor rotor serrations.
OK: No scratches, missing teeth or foreign objects.
Result 
NOTICE: Check the speed sensor signal after the replacement (See page BC-72).
8 CHECK REAR SPEED SENSOR TIP
(a) Remove the rear speed sensor (See page BC-190 for 2WD or BC-194 for 4WD).
(b) Check the sensor tip.
OK: No scratches or foreign matter on the sensor tip.
NOTICE:
- Check the speed sensor signal after the replacement (See page BC-72).
- When replacing the brake actuator assembly, perform zero point calibration (See page BC-70).
REPLACE BRAKE ACTUATOR ASSEMBLY
Right Front Wheel Speed Sensor Signal
DESCRIPTION
The speed sensor detects wheel speed and sends the appropriate signals to the
ECU. These signals are
used to control the ABS control system. The front and rear rotors have 48
ser ...
SFR Solenoid Circuit
DESCRIPTION
This solenoid goes on when signals are received from the ECU and controls the
pressure acting on the
wheel cylinders to control the braking force.
WIRING DIAGRAM
INSPECTI ...
Other materials:
Data list / active test
1. DATA LIST
The wireless door lock control data list can be
displayed while the intelligent tester is connected to
the DLC3 with the ignition switch in the ON position.
Follow the prompts on the tester screen to access
the DATA LIST.
BODY:
2. ACTIVE TEST
HINT:
Performing the ACT ...
Absence of Registration Unit/ No Response for Connection Check/ Last Mode
Error/ No Response Against ON / OFF Command/ Mode Status Error/ Slave Reset
DTC 01-D5 Absence of Registration Unit
DTC 01-D8 No Response for Connection Check
DTC 01-D9 Last Mode Error
DTC 01-DA No Response Against ON / OFF Command
DTC 01-DB Mode Status Error
DTC 01-DE Slave Reset
DESCRIPTION
HINT:
*1: Even if no fault is present, this trouble code may b ...
DTC check / clear
NOTICE:
All the stored DTCs and freeze frame data are erased if:
the ECM is changed from normal mode to check mode
or vice versa; or 2) the ignition switch is turned from ON
to ACC or off while in check mode.
Before changing modes, always check and make a note
of any DTCs and fr ...
