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Home >> Lexus >> 2007 >> LS 460 V8-4.6L (1UR-FSE) >> Repair and Diagnosis >> Sensors and Switches >> Sensors and Switches - Brakes and Traction Control >> Wheel Speed Sensor >> Service and Repair >> Rear Speed Sensor

Rear Speed Sensor

REMOVAL

NOTE: While the battery is connected, even if the engine switch is off, the brake control system activates when the brake pedal is depressed or the door courtesy switch turns on. Therefore during servicing of the brake system components, do not operate the brake pedal and open/ close the doors while the battery is connected.

HINT:
- The procedures listed are for the RH side.
- Other than areas where instructions are provided, use the same procedures for the LH side and RH side.

1. REMOVE COWL TOP VENTILATOR LOUVER RH
2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.

NOTE: After the engine switch is turned off, the HDD navigation system requires approximately 6 minutes to record various types of memory and settings. As a result, after turning the engine switch off, wait 6 minutes or more before disconnecting the cable from the negative (-) battery terminal.

3. REMOVE LUGGAGE COMPARTMENT MAT SUB-ASSEMBLY
4. REMOVE ROPE HOOK ASSEMBLY
5. REMOVE ROPE HOOK
6. REMOVE DECK TRIM SIDE BOARD RH
7. REMOVE DECK TRIM SIDE BOARD LH
8. REMOVE LUGGAGE COMPARTMENT NO.1 LIGHT ASSEMBLY
9. REMOVE LUGGAGE COMPARTMENT NO.2 TRIM HOOK (w/o Rear Cooler)
10. REMOVE LUGGAGE COMPARTMENT TRIM COVER FRONT
11. REMOVE REAR FLOOR FINISH PLATE
12. REMOVE LUGGAGE COMPARTMENT TRIM COVER ASSEMBLY LH
13. REMOVE LUGGAGE COMPARTMENT TRIM COVER ASSEMBLY RH
14. REMOVE REAR WHEEL

15. REMOVE SKID CONTROL SENSOR WIRE




a. Disconnect the sensor connector (labeled A).




b. Disconnect the grommet (labeled B) of the speed sensor wire from the hole of the wheel house.




c. Except for RH side of models with coil spring type suspension:
1. Disconnect the rear height control sensor connector (labeled C).
2. Remove the nut (labeled D) and sensor clamp (labeled E).

d. Remove the nut (labeled F) and sensor clamp (labeled G).




e. for RH:
Disconnect the pad wear indicator connector (labeled H).

f. Remove the bolt (labeled I) and sensor clamp (labeled J).
g. Disconnect the connector (labeled K) from the rear speed sensor.

NOTE:
- Be careful not to damage the speed sensor.
- Prevent foreign matter from adhering to the speed sensor.

16. REMOVE REAR SPEED SENSOR




a. Remove the bolt and sensor.

NOTE:
- The rear speed sensor is easily damaged. When pulling out the rear speed sensor from the rear axle hub RH, do not use excessive force to rotate and remove it.
- Prevent foreign matter from attaching to the sensor tip.

INSTALLATION

NOTE: While the battery is connected, even if the engine switch is off, the brake control system activates when the brake pedal is depressed or the door courtesy switch turns on.Therefore during servicing of the brake system components, do not operate the brake pedal and open/ close the doors while the battery is connected.

HINT:
- The procedures listed are for the RH side.
- Other than areas where instructions are provided, use the same procedures for the LH side and RH side.

1. INSTALL REAR SPEED SENSOR RH




a. Install the sensor with the bolt.

Torque: 8.5 N.m (87 kgf.cm, 75 in.lbf)

NOTE:
- The rear speed sensor is easily damaged. When installing the rear speed sensor to the rear axle hub RH, do not use excessive force to rotate and install it.
- Prevent foreign matter from attaching to the sensor tip.

NOTE: Prevent foreign matter from attaching to the sensor tip.

2. INSTALL SKID CONTROL SENSOR WIRE




a. Connect the connector (labeled A) to the rear speed sensor.
b. Install the sensor clamp (labeled B) with the bolt (labeled C).

Torque: 8.5 N.m (87 kgf.cm, 75 in.lbf)

NOTE: Do not twist the sensor wire when installing the clamps.

c. for RH:
Connect the pad wear indicator connector (labeled D).




d. Install the sensor clamp (labeled E) with the nut (labeled F).

Torque: 5.5 N.m (56 kgf.cm, 49 in.lbf)

NOTE: Do not twist the sensor wire when installing the clamps.

e. Except for RH side of models with coil spring type suspension:
1. Install the sensor clamp (labeled G) with the nut (labeled H).

Torque: 5.5 N.m (56 kgf.cm, 49 in.lbf)

2. Connect the rear height control sensor connector (labeled I).




f. Insert the connector and grommet to the inside of the vehicle through the hole in the wheel house.




g. Connect the rear speed sensor wire connector.

3. INSTALL REAR WHEEL

Torque: 140 N.m (1428 kgf.cm, 103 ft.lbf)

4. INSTALL LUGGAGE COMPARTMENT TRIM COVER ASSEMBLY RH
5. INSTALL LUGGAGE COMPARTMENT TRIM COVER ASSEMBLY LH
6. INSTALL REAR FLOOR FINISH PLATE
7. INSTALL LUGGAGE COMPARTMENT TRIM COVER FRONT
8. INSTALL LUGGAGE COMPARTMENT NO.2 TRIM HOOK (w/o Rear Cooler)
9. INSTALL LUGGAGE COMPARTMENT NO.1 LIGHT ASSEMBLY
10. INSTALL DECK TRIM SIDE BOARD LH
11. INSTALL DECK TRIM SIDE BOARD RH
12. INSTALL ROPE HOOK ASSEMBLY
13. INSTALL ROPE HOOK
14. INSTALL LUGGAGE COMPARTMENT MAT SUB-ASSEMBLY
15. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
16. INSTALL COWL TOP VENTILATOR LOUVER RH

17. PERFORM INITIALIZATION
a. Perform initialization.

NOTE: Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.

18. CHECK SPEED SENSOR SIGNAL
a. Check the speed sensor signal.
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