Grand Vitara 4WD V6-25L (2003) Wheel Speed Sensor Service and Repair Guide - Type 1 - Page 2667
3) Disconnect rear wheel speed sensor connector (2) and detach wire harness (1) from vehicle body and rear axle.
4) Remove harness clamps (2) and sensor bolt (1).
5) Remove rear wheel speed sensor from rear axle.
CAUTION:
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Do not pull wire harness when removing rear wheel speed sensor.
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Do not cause damage to surface of rear wheel speed sensor and do not allow dust, etc. to enter its installation hole.