Toyota RAV4 manuals

Toyota Sienna Service Manual: Rear Speed Sensor RH Circuit

Rear Speed Sensor RH Circuit

DESCRIPTION

Refer to DTCs C0200/31, C0205/32, C1235/35, and C1236/36 (See page BC-17).

DTCs C1273/73 to C1278/78 can be deleted when the speed sensor sends a vehicle speed signal or the Test Mode ends. DTCs C1273/73 to C1278/78 are output only in the Test Mode.

Rear Speed Sensor RH Circuit

HINT:

WIRING DIAGRAM

Rear Speed Sensor RH Circuit

INSPECTION PROCEDURE

HINT: Start the inspection from step 1 when using the intelligent tester and start from step 3 when not using the intelligent tester.

1 READ VALUE OF INTELLIGENT TESTER (REAR SPEED SENSOR)

(a) Select the DATA LIST mode on the intelligent tester.

ABS:

(b) Check that there is the speed value output from the speed sensor displayed on the intelligent tester and the speed value displayed on the speedometer are almost the same when driving the vehicle.

OK: The speed value output from the speed sensor displayed on the intelligent tester is the same as the actual vehicle speed.

2 PERFORM TEST MODE INSPECTION (SIGNAL CHECK)

(a) Clear the DTC (See page BC-10).

(b) Perform sensor signal check in TEST MODE PROCEDURE (See page BC-3).

OK: All Test Mode DTCs are erased.

3 INSPECT REAR SPEED SENSOR INSTALLATION

INSPECT REAR SPEED SENSOR INSTALLATION

(a) Turn the ignition switch off.

(b) Check the speed sensor installation.

OK: The installation nut is tightened properly.

There is no clearance between the sensor and the rear axle.

Torque: 8.0 N*m (82 kgf*cm, 71 in.*lbf)

NOTICE: Check the speed sensor signal after replacement (See page BC-3).

4 INSPECT SPEED SENSOR TIP

(a) Remove the rear speed sensor (See page BC-190).

(b) Check the sensor tip.

OK: No scratches or foreign matter on the sensor tip.

NOTICE: Check the speed sensor signal after cleaning or replacement (See page BC-3).

5 INSPECT HARNESS AND CONNECTOR (BETWEEN REAR SPEED SENSOR AND SKID CONTROL SENSOR WIRE)

INSPECT HARNESS AND CONNECTOR (BETWEEN REAR SPEED SENSOR AND SKID CONTROL SENSOR WIRE)

(a) Install the rear speed sensor.

(b) Disconnect the rear speed sensor connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard resistance

RH:

LH:

NOTICE: Check the speed sensor signal after replacement (See page BC-3).

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

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

(a) Disconnect the skid control ECU connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard resistance

RH:

LH:

7 INSPECT SPEED SENSOR AND SENSOR ROTOR SERRATIONS

INSPECT SPEED SENSOR AND SENSOR ROTOR SERRATIONS

(a) Connect the oscilloscope to terminals FR+ - FR- or FL+ - FL- of the skid control ECU.

(b) Drive the vehicle at about 30 km/h (19 mph), and check the signal waveform.

OK: A waveform as shown in the figure should be output.

HINT:

8 RECONFIRM DTC

(a) Clear the DTCs (See page BC-10).

(b) Drive the vehicle at a speed of approximately 32 km/h (20 mph) or more for 60 seconds or more.

(c) Check that the same DTCs are recorded (See page BC- 10).

HINT: Reinstall the sensors, connectors, etc. and restore the vehicle to its prior condition before rechecking for DTCs.

Result

9 INSPECT SPEED SENSOR ROTOR

INSPECT SPEED SENSOR ROTOR

(a) Turn the ignition switch off.

(b) Remove the rear axle hub and bearing (See page AH- 16).

(c) Check the rotor.

OK: No scratches, oil, or foreign matter on the rotors.

NOTICE: Check the speed sensor signal after cleaning or replacement (See page BC-3).

REPLACE BRAKE ACTUATOR ASSEMBLY

Front Speed Sensor RH Circuit
DESCRIPTION The speed sensor detects wheel speed and transmits the appropriate signals to the ECU. These signals are used for control of the ABS control system. The front and rear rotors have ...

SFR Solenoid Circuit
DESCRIPTION The solenoid comes on when signals are received from the ECU and controls the pressure acting on the wheel cylinders, thus controlling brake force. WIRING DIAGRAM INSPECT ...

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 ...

CD cannot be Inserted / Played or CD is Ejected Right After Insertion
INSPECTION PROCEDURE 1 CHECK IF A PROPER CD IS INSERTED Make sure that the CD is an audio CD or a CD with an MP3 or WMA file, and that it is not deformed, flawed, stained, burred, or otherwise defective. OK: Normal CD. HINT:  Translucent or uniquely-shaped CDs cannot be play ...

Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have blown. If this happens, check and replace the fuses as necessary. Turn the engine switch to the “LOCK” position (vehicles without a smart key system) or off (vehicles with a smart key system). Open the fuse box cover. ...

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