1023
begin to slip or 'skid'), the ECM very rapidly releases and reapplies the brake pressure to
prevent the wheel from slipping.
This is felt through the brake pedal or lever as a rapid 'pulsing.
If the rider reduces braking effort, or traction increases (so that traction exceeds braking
force, the wheel will rotate once more) the wheel will no longer lock up. The ABS system
will detect this and stop controlling brake pressure, and return to its monitoring state.
The system has a self diagnostic function built-in which monitors the fail safe relay,
solenoid valves, motor relay, wheel speed sensors, power supply and ground, as well as
internal ECM functions. In the event of a malfunction being detected, the ECM will
illuminate the ABS warning light, and store a diagnostic trouble code in the system
memory. This stored data can then be recovered using the Triumph Diagnostic Tool
which is mandatory for all Triumph dealers. In this way, precise diagnosis of a fault can
be made and the fault quickly rectified.
Under normal operation, the ABS warning light will flash on and off after the ignition is
switched on and until the vehicle speed exceeds 6 mph (10 km/h). The ABS performs a
self check and if no faults are found the light is extinguished. If a trouble code is stored
the ABS warning light will stay illuminated and the ABS will not function, however the
brakes will operate normally. If the ABS warning light does not extinguish, or illuminates
whilst the motorcycle is being ridden, refer to the ABS system diagnostics (see
Diagnostic Trouble Codes).
Brake Light Switch
The brake light switch is incorporated in the hydraulic modulator and ECM assembly for
both the front lever and rear brake pedal operation.
To Next Page
Loading...
