Toyota RAV4 manuals

Toyota Sienna Service Manual: Right Rear Wheel Speed Sensor Signal

Right Rear Wheel Speed Sensor Signal

DESCRIPTION

Refer to DTCs C0200/31, C0205/32, C1235/35 and C1236/36 (See page BC-92).

Right Rear Wheel Speed Sensor Signal

HINT:

WIRING DIAGRAM

Right Rear Wheel Speed Sensor Signal

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

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:

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

INSPECT REAR SPEED SENSOR

(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

INSPECT REAR SPEED SENSOR

(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.

CHECK HARNESS AND CONNECTOR (REAR SPEED SENSOR - SKID CONTROL ECU)

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

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:

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

CHECK REAR SPEED SENSOR INSTALLATION

(a) 2WD

(1) Check the sensor installation.

OK: There is no clearance between the sensor and rear axle carrier.

CHECK REAR SPEED SENSOR INSTALLATION

(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

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:

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:

Removal
1. DRAIN POWER STEERING FLUID 2. REMOVE FRONT WHEEL RH 3. REMOVE FRONT FENDER APRON SEAL RH (See page EM-26) 4. REMOVE FAN AND GENERATOR V BELT (See page EM-6) 5. DISCONNECT NO. 1 FLUID RESERVOIR TO PUMP HOSE (a) Slide the clip and disconnect the No. 1 fluid reservoir to pump hose from t ...

DTC check / clear
1. CHECK DTC (USING INTELLIGENT TESTER)  Checking DTCs.  Connect the intelligent tester to the DLC3.  Turn the ignition switch ON. Read DTCs by following the prompts on the tester screen. HINT: Refer to the intelligent tester operator's manual for further deta ...

Removal
HINT: Replace the RH side by the same procedures as the LH side. 1. REMOVE REAR WHEEL 2. REMOVE REAR DISC BRAKE CALIPER ASSEMBLY LH (a) Removing the 2 bolts, separate the rear disc brake caliper assembly LH for disc rear brake type. NOTICE: Using a string and so on, hang down the disc brake ...

В© 2011-2024 Copyright www.tsienna.net