Toyota Celica 1986-1993 Repair Guide

Rear Wheel Speed Sensor

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REMOVAL & INSTALLATION



2WD Vehicles
  1. Disconnect the negative battery cable.
  2.  
  3. Remove the rear seat cushion. Disconnect the sensor cable connector; feed the sensor cable through the grommet, if equipped.
  4.  
  5. Raise and safely support the rear of the vehicle.
  6.  
  7. Remove the wheel and tire.
  8.  
  9. Remove the clips and retainers holding the sensor cable to the body and suspension arm.
  10.  
  11. Remove the brake caliper and brake disc. Suspend the caliper from stiff wire; do NOT let it hang by the hose.
  12.  
  13. Remove the 4 bolts holding the hub and remove the hub.
  14.  



Click image to see an enlarged view

Fig. Fig. 1 Removing rear speed sensor1988-89 Celica shown



Click image to see an enlarged view

Fig. Fig. 2 Removing rear speed sensor1992-93 Celica shown

  1. Remove the backing plate with the parking brake assembly and O-ring.
  2.  
  3. Remove the speed sensor retaining bolt and remove the sensor from the backing plate.
  4.  

To install:

  1. Position the sensor on the backing plate and install the retaining bolt. Tighten the bolt to 9 ft. lbs. (13 Nm) on 1988-89 models or to 69 inch lbs. (7.8 Nm) on 1990-93 models.
  2.  
  3. Install the backing plate with the parking brake assembly in place.
  4.  
  5. Install a new O-ring on the axle carrier. Install the hub and tighten the 4 mounting bolts to 59 ft. lbs. (80 Nm).
  6.  
  7. Align the hole on the axle hub and the service hole on the brake disc. Install the disc.
  8.  
  9. Install the brake caliper; tighten the mounting bolts to 34 ft. lbs. (47 Nm).
  10.  
  11. Install the sensor cable into the clips and retainers. Make certain the cable is clear of all moving components.
  12.  
  13. Insert the sensor cable through the grommet into the vehicle.
  14.  
  15. Install the wheel and tire. Lower the vehicle to the ground.
  16.  
  17. Connect the sensor cable to the ABS harness.
  18.  
  19. Install the rear seat cushion.
  20.  
  21. Connect the battery cable. Turn the ignition switch On and check that the dashboard warning lamp (ABS or antilock) comes on for 3-4 seconds, indicating a normal condition.
  22.  

4WD Vehicles
  1. Raise and safely support the rear of the vehicle.
  2.  
  3. Remove the tire and wheel.
  4.  
  5. Disconnect the wheel speed sensor lead from the ABS harness. Remove any retaining bolts or clips holding the harness in place.
  6.  


WARNING
Clips and retainers must be reinstalled in their exact original location. Take careful note of the position of each retainer and of the correct harness routing during removal.

  1. Remove the single bolt holding the speed sensor.
  2.  
  3. Carefully remove the sensor straight out of its mount. Do NOT subject the sensor to shock or vibration; protect the tip of the sensor at all times.
  4.  

To install:

  1. Before installation, make certain all traces of paint are removed from the hub carrier surface. A clean metal-to-metal contact is required. Fit the sensor into position. Make certain the sensor sits flush against the mounting surface; it must not be crooked.
  2.  
  3. Install the retaining bolt. Tighten the bolt to 14 ft. lbs. (19 Nm).
  4.  
  5. Route the sensor cable correctly and install the harness clips and retainers. The cable must be in its original position and completely clear of moving components.
  6.  
  7. Connect the sensor cable to the ABS harness.
  8.  
  9. Install the wheel and tire.
  10.  
  11. Lower the vehicle to the ground.
  12.  
  13. Turn the ignition switch On and check that the dashboard warning lamp (ABS or antilock) comes on for 3-4 seconds, indicating a normal condition.
  14.  



Click image to see an enlarged view

Fig. Fig. 3 Removing rear speed sensor4wd Celica shown

 
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