Honda CBR650F Service Manual page 345

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ANTI-LOCK BRAKE SYSTEM (ABS; CBR650FA, CB650FA)
DTC INDEX
• The ABS indicator might blink in the following cases. Correct the faulty part.
– Incorrect tire pressure.
– Tires not recommended for the motorcycle were installed (incorrect tire size).
– Deformation of the wheel or tire.
• The ABS indicator might blink while riding under the following conditions. This is temporary failure. Be sure to erase the DTC
(page 19-6). Then, test-ride the motorcycle above 30 km/h (19 mph) and check the DTC (page 19-5). Ask the rider for the riding
conditions in detail when the motorcycle is brought in for inspection.
– The motorcycle has continuously run bumpy roads.
– The front wheel leaves the ground for a long time when riding (wheelie).
– Only either the front or rear wheel rotates.
– The ABS operates continuously.
– The ABS control unit has been disrupted by an extremely powerful radio wave (electromagnetic interference).
DTC
ABS indicator malfunction
• ABS modulator voltage input line
• Indicator related wires
–
• Combination meter
• ABS modulator
• ABS MAIN fuse (7.5 A)
Front wheel speed sensor circuit malfunction
1-1 (open circuit)
• Wheel speed sensor or related wires
Front wheel speed sensor malfunction
• Wheel speed sensor, pulser ring or related
1-2
wires
• Electromagnetic interference
Rear wheel speed sensor circuit malfunction
1-3 (open circuit)
• Wheel speed sensor or related wires
Rear wheel speed sensor malfunction
• Wheel speed sensor, pulser ring or related
1-4
wires
• Electromagnetic interference
Front or rear wheel speed sensor circuit
1-5 malfunction (short circuit)
• Wheel speed sensor or related wires
Front pulser ring
2-1
• Pulser ring or related wires
Rear pulser ring
2-3
• Pulser ring or related wires
3-1 Solenoid valve malfunction (ABS modulator)
3-2
3-3
3-4
Front wheel lock
4-1
• Riding condition
Front wheel lock (Wheelie)
4-2
• Riding condition
Rear wheel lock
4-3
• Riding condition
Pump motor lock
• Pump motor (ABS modulator) or related
5-1
wires
• ABS M fuse (30 A)
Power supply relay malfunction
• Power supply relay (ABS modulator) or
5-4
related wires
• ABS M fuse (30 A)
Power circuit under voltage
6-1 • Input voltage (too low)
• ABS MAIN fuse (7.5 A)
19-8
Function failure
Detection
Symptom/Fail-safe function
A B
• ABS indicator never comes
ON at all
• ABS indicator stays ON
• Stops ABS operation
• Stops ABS operation
• Stops ABS operation
• Stops ABS operation
• Stops ABS operation
• Stops ABS operation
• Stops ABS operation
• Stops ABS operation
• Stops ABS operation
• Stops ABS operation
• Stops ABS operation
• Stops ABS operation
• Stops ABS operation
Refer
to
19-10
19-10
19-12
19-12
19-14
19-14
19-16
19-12
19-14
19-18
19-12
19-12
19-14
19-18
19-18
19-19