Honda NSS250S Manual page 518

ABS (NSS250A)
PROBLEM CODE 13, 14, 23 or 43 (Rear
Wheel Speed Sensor/Rear Pulser
Ring/Rear Wheel Lock)
• The ABS indicator might blink under unusual
riding or conditions (page 18-10). This is intermit-
tent failure. Erase the problem code (page 18-9)
then test ride the scooter above 30 km/h (18
mph) and check the problem code by retrieving
the self-diagnosis system (page 18-8).
• If the problem code 43 is indicated, check the
rear brake for drag.
1. Rear Wheel Speed Sensor Air Gap Inspection
Support the scooter on its center stand and raise
the wheel off the ground.
Measure the clearance (air gap) between the
sensor and pulser ring at several points by turn-
ing the wheel slowly.
STANDARD: 0.2 – 1.2 mm (0.01 – 0.05 in)
Is the air gap correct?
YES
NO
2. Rear Wheel Speed Sensor Condition Inspection
Inspect the area around the rear wheel speed
sensor and pulser ring:
Check that there is iron or other magnetic depos-
its between the pulser ring slots and rear wheel
speed sensor, and the pulser ring slots for
obstructions.
Check installation condition of the pulser ring or
rear wheel speed sensor for looseness.
Check the pulser ring and sensor tip for defor-
mation or damage (e.g., chipped pulser ring
teeth).
Are the sensor and pulser ring in good condi-
tion?
YES
NO
3. Rear
Inspection
Turn the ignition switch OFF.
Disconnect the rear wheel speed sensor 2P
(Orange) connector (page 18-26).
Turn the ignition switch ON.
Measure the voltage at the rear wheel speed
sensor 2P connector of the wire side.
CONNECTION: Pink/white (+) – Green/red (–)
Is there battery voltage?
YES
NO
18-18
maxiscooter-club.ru
– GO TO STEP 2.
– Check each part for deformation and
looseness and correct
Recheck the air gap.
– GO TO STEP 3.
– Remove any deposits. Install properly
or replace faulty part.
Wheel Speed Sensor Input
– Faulty rear wheel speed sensor
– GO TO STEP 4.
0.2 – 1.2 mm (0.01 – 0.05 in)
accordingly.
PULSER RING
Voltage
SPEED SENSOR 2P (Orange) CONNECTOR
(Wire side/female terminals)
Pink/white
REAR WHEEL SPEED SENSOR
Green/red