44, 46_Abs; Troubleshooting - Yamaha XSR 900 2022 Service Manual

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44, 46_ABS

Rear wheel sensor (missing pulses)

After the DTC 46 is recorded, DTC 44 will be recorded if a certain speed and time are exceeded.

1. Foreign material adhered around the rear wheel sensor

• Check the surface of the sensor rotor and wheel sensor for foreign material, such as metal particles.

Is check result OK?

→ Go to step 2.

→ Clean the sensor rotor and wheel sensor.

2. Incorrect installation of the rear wheel

• Check the components for looseness, distortion, and bends.

Refer to "CHECKING THE REAR WHEEL" on page 4-22.

Is check result OK?

→ Go to step 3.

→ Replace the wheel axle, tire, rear wheel, wheel bearings or oil seals.

3. Defective sensor rotor or incorrect installation of the rotor

• Check the surface of the sensor rotor for damage.

Refer to "MAINTENANCE OF THE REAR WHEEL SENSOR AND SENSOR ROTOR" on page 4-

Is check result OK?

→ Go to step 4.

→ Replace the sensor rotor.

4. Defective rear wheel sensor or incorrect installation of the sensor

• Check the wheel sensor for damage and the installed condition of the sensor.

Refer to "MAINTENANCE OF THE REAR WHEEL SENSOR AND SENSOR ROTOR" on page 4-

Is check result OK?

→ Replace the hydraulic unit assembly (ABS ECU).

Refer to "ABS (ANTI-LOCK BRAKE SYSTEM)" on page 4-52.

→ Repair or replace the wheel sensor.

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