K-ACT ABS (Equipped Models)
K-ACT ABS Troubleshooting Outline
When an abnormality in the system occurs, the K-ACT
ABS indicator light (LED) lights up to alert the rider. In ad-
dition, the nature of the fault is stored in the memory of the
K-ACT ABS hydraulic unit and when in the self-diagnosis
mode, the service code [A] is indicated by the number of
times the K-ACT ABS indicator light (LED) blinks. The ser-
vice codes stored in memory are not erased until the mode
has been changed to the fault erase mode after the fault
has been corrected. Therefore, after correcting the prob-
lem, always erase the service codes and then run the self
-diagnosis program to confirm normal signal output. When,
due to a malfunction, the K-ACT ABS indicator light (LED)
remains lit, get a thorough understanding of the background
before starting the repair work. Ask the rider about the
conditions [B] under which the problem occurred and try to
determine the cause [C]. Do not rely solely on the K-ACT
ABS self-diagnosis function, use common sense; check
the brakes for proper braking power, and brake fluid level,
search for leaks, etc.
Even when the K-ACT ABS is operating normally, the
K-ACT ABS indicator light (LED) may light up under the
conditions listed below. Turn the ignition switch OFF to stop
the indicator light. If the motorcycle runs without erasing the
service code, the light may light up again.
After continuous riding on a rough road.
When the engine is started with the stand raised and the
transmission engaged, and the rear wheel turns.
When accelerating so abruptly that the front wheel leaves
When the K-ACT ABS has been subjected to strong elec-
When tire pressure is abnormal. Adjust tire pressure.
When a tire different in size from the standard size is being
used. Replace with standard size.
When the wheel is deformed. Replace the wheel.
Much of the K-ACT ABS troubleshooting work consists of
confirming continuity of the wiring. The K-ACT ABS parts
are assembled and adjusted by the manufacturer, so there
is no need to disassemble or repair them. Replace the K
-ACT ABS hydraulic unit.
The basic troubleshooting procedures are listed below.
Carry out pre-diagnosis inspections as a preliminary in-
Determine the fault using the self-diagnosis function.
Check wiring and connections from the K-ACT ABS hy-
draulic unit connector to the suspected faulty K-ACT ABS
part, using the hand tester.
Special Tool - Hand Tester: 57001-1394