4E-65 ABS:
3 1) Turn the ignition switch OFF.
2) Remove the left frame cover. Refer to “Exterior Parts
Removal and Installation (GSF650/S/A/SAK7) in Section
9D (Page 9D-6)”.
3) Remove the fuse box mounting bolt. Refer to “ABS
Control Unit Coupler Disconnect and Connect (Page 4E-
69)”.
4) Check the ABS control unit coupler for loose or poor
contacts. If OK, then disconnect the ABS control unit
coupler.
5) Start the engine at 5 000 r/min with the dimmer switch
set to HI.
6) Measure the voltage between “16” (O/Y) and “24” (B/W)
at the coupler.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
Tester knob indication
Voltage ( )
ABS control unit coupler (Harness end)
Is the voltage same as Step 2?
Replace the ABS
control unit/HU.
Inspect the wire
harness. (Faulty ignition
or ground wire)
Step Action Yes No
24 25
(ޓ)
18
10 12 13
16
2
3
4
21
(ޓ)
89
(A)
(A)
I718H1450036-04
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