Honda CBR650F Service Manual page 353

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ANTI-LOCK BRAKE SYSTEM (ABS; CBR650FA, CB650FA)
5. Rear Wheel Speed Sensor Line Open Circuit
Inspection
Short the wire harness side ABS modulator 18P
(Black) connector [1] terminals with a jumper wire
[2].
CONNECTION: 6 – 15
Check for continuity between the wire harness side
rear wheel speed sensor 2P (Gray) connector [3]
terminals.
CONNECTION: White/black – Blue
Is there continuity?
YES
NO
6. Failure Reproduction with a New Speed Sensor
Replace the rear wheel speed sensor with a new
one (page 19-22).
Connect the ABS modulator 18P (Black) and rear
wheel speed sensor 2P (Gray) connectors.
Erase the DTC (page 19-6).
Test-ride the motorcycle above 30 km/h (19 mph).
Recheck the DTC (page 19-5).
Is the DTC 1-3, 1-4, 2-3, or 4-3 indicated?
YES
NO
DTC 1-5 (Front or Rear Wheel Speed
Sensor Circuit; Short)
1. Front Wheel Speed Sensor Line Short Circuit
Inspection (at sensor side)
Turn the ignition switch OFF.
Disconnect the front wheel speed sensor 2P (Blue)
connector (page 19-21).
Check for continuity between each terminal of the
sensor side front wheel speed sensor 2P (Blue)
connector [1] and ground.
CONNECTION: White – Ground
Is there continuity?
YES
NO
19-16
– GO TO STEP 6.
– Open circuit in the White/black or Blue wire
– Faulty ABS modulator
– Faulty original wheel speed sensor
Blue – Ground
– Faulty front wheel speed sensor
– GO TO STEP 2.
[2]
6
15
Bu
[1]
W
[1]
[3]
W/Bl
Bu