K. REMOVAL AND REFITMENT OF REAR WHEEL SPEED SENSOR 1. Position the vehicle on two-post lift. 2. Disconnect electrical connector of wheel speed sensor. 3. Remove sensor-mounting screw and remove the wheel speed sensor. INSPECTION OF REAR TONER RING 1. Jack the vehicle and properly support rear of the vehicle. 2. Remove the brake drum & brake assembly, axle shaft. 3. Closely inspect the toner ring and remove the dust and mud/iron particles in between teeth 4. Check for any damaged teeth. (Rear toner ring got 43 teeth) 5. Replace toner ring if teeth are missing or damage. INSTALLATION 1. Clean speed sensor and its mounting surface. 2. Route the cable properly. 3. Install the wiring harness connector with wheel speed sensor cable. 4. Make sure that the sensor cable connector is fully seated and locked into vehicle wiring harness connector. 5. Insert the sensor into the sensor mounting hole and tighten the bolt to the specified torque (0.8 – 1.0 Kg-M) 6. Check the air gap between the face of the wheel speed sensor and the top surface of the toner wheel. 7. Clear all fault codes and road test vehicle to ensure proper operation of the brake system WARNING Take proper precaution while disconnecting the wheel speed sensor from vehicle wiring harness, by not damaging pins of connector. NOTE Before replacing wheel speed sensor, carry • out diagnosis of wheel speed sensor. (Refer Trouble-shooting and Diagnosis NOTE Air gap should be 0.5 to 1.5 mm • BRAKE_PETROL 59
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