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HOMESERVICE MANUALSISUZU2006ASCENDER S, 5.3 M, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 563 (ANTILOCK BRAKE SYSTEM)REPAIR INSTRUCTIONSREAR WHEEL SPEED SENSOR REPLACEMENTINSTALLATION PROCEDURE
2006 Isuzu Ascender S, 5.3 M, 4WD

Installation Procedure

2006 Isuzu Ascender S, 5.3 M, 4WDSECTION Installation Procedure
WARNING: This page is about a different car, the 2009 GMC Envoy and 2009 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Rear Wheel Speed Sensor
    GM924313Courtesy of GENERAL MOTORS CORP.
  1. Ensure the sensor and sensor boss (face and inner diameter) are clean and free of any debris and/or metal chips.
  2. Place a small amount of axle lube inside the sensor boss inner diameter to ensure the seal is properly lubricated and does not roll over when installed.
  3. Insert the wheel speed sensor into the hole using equal pressure to seat the sensor squarely on the sensor boss face.
    4. CAUTION: Refer to Fastener Caution .
  4. Align the sensor with the bolt hole and install the wheel speed sensor bolt and tighten to 18 N.m (13 lb ft).
  5. Connect the wheel speed sensor electrical connector.
  6. Lower the vehicle.
  7. Perform a low speed test to ensure the wheel speed sensor is functioning properly:
    1. Start the engine and allow it to idle.
    2. Verify the ABS indicator or the traction assist indicator remains illuminated.
    3. If the ABS indicator or the traction assist indicator remains illuminated, DO NOT proceed to drive the vehicle until it is diagnosed and repaired. Check the wheel speed sensor electrical connector to ensure it is not damaged and is installed properly. If the lamp remains illuminated, refer to Symptoms - Antilock Brake System .
    4. Select a smooth, dry, clean, and level road or large lot that is as free of traffic and obstacles as possible.
    5. Drive the vehicle and maintain a speed of at least 16 km/h (10 mph) for at least 5 seconds.
    6. Stop the vehicle and check to see if the ABS indicator or the traction assist indicator is illuminated.
    7. If an indicator is illuminated, refer to Diagnostic Starting Point - Antilock Brake System .
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.