Altima 2007-2009

Wheel Speed Sensors

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Removal & Installation



Specific to:

Nissan Altima 2007-2008


WARNING
As much as possible, avoid rotating wheel sensor and avoid pulling on sensor harness. Take care to avoid damaging wheel sensor edges or rotor teeth. Remove wheel sensor before removing wheel hub.


NOTE
On Altima, both rear wheel sensors share one wiring harness and must be replaced as an assembly.

  1. Raise and safely support the vehicle and remove the wheel.
  2.  
  3. On Altima, partially remove the inner fender liner as needed to access the sensor wiring.
  4.  
  5. Disconnect wiring and remove bolt.
  6.  
  7. Pull sensor straight out.
  8.  

To install:

  1. Make sure there is no rust or foreign material such on or in the mounting hole of the wheel sensor. Make sure no foreign material has been caught in the sensor rotor. Remove any foreign material and clean the mount.
  2.  
  3. Press rubber grommets of strut bracket and body all the way in until they lock. Harness should not be twisted after installation. Install with harness paint mark on body side grommet facing front of vehicle, and the strut side grommet facing outside of vehicle.
  4.  
  5. Torque front sensor bolts to 80 inch lbs. (9 Nm).
  6.  
  7. Torque rear sensor bolts to 8 ft. lbs. (11 Nm).
  8.  

Specific to:

Nissan Altima 2009-2010


CAUTION



Be careful not to damage wheel sensor edge and sensor rotor teeth.
 
When removing the front or rear wheel hub, first remove the wheel sensor from the wheel hub. Failure to do so may result in damage to the wheel sensor wires making the sensor inoperative.
 
Pull out the wheel sensor, being careful to turn it as little as possible. Do not pull on the wheel sensor harness.
 
Before installation, check if foreign objects such as iron fragments are adhered to the pick-up part of the sensor or to the inside of the hole in the wheel hub for the wheel sensor, or if a foreign object is caught in the surface of the mating surface for the sensor rotor. Fix as necessary and then install the wheel sensor.

Click image to see an enlarged view

Fig. Wheel speed sensor locations

 

Front Wheel

Specific to:

Nissan Altima 2009-2010

  1. Remove front wheel and tire.
  2.  
  3. Partially front wheel fender protector.
  4.  
  5. Remove wheel sensor bolt and wheel sensor.
  6.  
  7. Remove harness wire from mounts and disconnect wheel sensor harness connector.
  8.  

To install:

  1. Installation is in the reverse order of removal.
  2.  

Rear Wheel

Specific to:

Nissan Altima 2009-2010


NOTE
Both rear wheel sensors share one harness and must be replaced as an assembly.

  1. Remove rear wheel and tire.
  2.  
  3. Remove wheel sensor bolts and wheel sensors from both rear wheel hub and bearing assemblies.
  4.  
  5. Remove harness wire from mounts and harness wire clips from rear suspension member.
  6.  
  7. Disconnect wheel sensor harness connector.

    Click image to see an enlarged view

    Fig. Disconnect wheel sensor harness connector (1)

  8.  

To install:

  1. Installation is in the reverse order of removal.
  2.  

 
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