13, 26_Abs; Troubleshooting - Yamaha XSR 900 2022 Service Manual

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13, 26_ABS

Front wheel sensor (abnormal pulse period)

• If the front brake ABS operates continuously for 20 seconds or more, DTC No. 26 will be recorded. If

the front brake ABS operates continuously for 36 seconds or more, DTC No. 13 will be recorded.

• Vehicle possibly ridden on uneven roads.

1. Foreign material adhered around the front 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 front wheel

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

Refer to "CHECKING THE FRONT WHEEL" on page 4-14.

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 FRONT WHEEL SENSOR AND SENSOR ROTOR" on page 4-

Is check result OK?

→ Go to step 4.

→ Replace the sensor rotor.

4. Defective front 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 FRONT 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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