Honda CBR650F Service Manual page 352

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2. Speed Sensor Condition Inspection
Inspect the area around the rear wheel speed
sensor:
Check that there is iron or other magnetic deposits
between the pulser ring [1] and wheel speed sensor
[2], and the pulser ring slots for obstructions.
Check the installation condition of the pulser ring or
wheel speed sensor for looseness.
Check the pulser ring and sensor tip for deformation
or damage (e.g., chipped pulser ring teeth).
Are the sensor and pulser ring in good
condition?
YES
NO
3. Rear Wheel Speed Sensor Line Short Circuit
Inspection (at sensor side)
Turn the ignition switch OFF.
Remove the seat (page 2-12).
Release the optional 6P connector [1] from the stay.
Release the rear wheel speed sensor 2P (Gray)
connector [2] from the stay and disconnect it.
Check for continuity between each terminal of the
sensor side rear wheel speed sensor 2P (Gray)
connector [1] and ground.
CONNECTION: Blue – Ground
Is there continuity?
YES
NO
4. Rear Wheel Speed Sensor Line Short Circuit
Inspection
Disconnect
connector (page 19-7).
Check for continuity between each terminal of the
wire harness side rear wheel speed sensor 2P
(Gray) connector [1] and ground.
CONNECTION: White/black – Ground
Is there continuity?
YES
NO
ANTI-LOCK BRAKE SYSTEM (ABS; CBR650FA, CB650FA)
– GO TO STEP 3.
– Remove any deposits. Install properly or
replace faulty part.
White – Ground
– Faulty rear wheel speed sensor
– GO TO STEP 4.
the ABS modulator
Blue – Ground
– • Short circuit in the White/black wire
• Short circuit in the Blue wire
– GO TO STEP 5.
[2]
[1]
[1]
[2]
[1]
18P (Black)
[1]
Bu
W
Bu
W/Bl
19-15