Wheel Speed Sensor; Air Gap Inspection; Front Sensor - Honda GL1800 Service Manual

8. ABS Indicator Checking
Perform the pre-start self-diagnosis and check
the ABS indicator.
Does the indicator go off or stay on?
GOES OFF–Normal (temporary failure). The ABS
STAYS ON–Faulty ABS control unit.

WHEEL SPEED SENSOR

AIR GAP INSPECTION

Raise the front wheel off the ground.

Front sensor:

Remove the rear fender A (page 2-13).
Rear sensor:
Measure the clearance (air gap) between the sensor
and pulser ring at several points by turning the
wheel slowly. It must be within specification.
STANDARD: Front/rear: 0.4 – 1.2 mm (0.02 – 0.05 in)
The sensor air gap cannot be adjusted. If it is not
within specification, check each installation part for
deformation, looseness and damage.
REPLACEMENT
FRONT SENSOR
Remove the following:
– right front fender cover (page 2-6)
– center inner fairing (page 2-10)
Disconnect the sensor 2P (orange) connector.
control unit has been disrupted by an
extremely powerful radio wave. Check
the connector and wire harness for
loose connection.
BRAKE SYSTEM (ABS)
16-29