Suzuki 2006 GSF1200AK6 Supplementary Service Manual page 64

Step 3
1) Turn the ignition switch to OFF.
2) Remove the left frame cover. (!GSF1200K6/SK6 9D-5)
3) Remove the fuse box mounting bolt. (!Page 28)
4) Check the ABS control unit coupler for loose or poor con-
tacts. If OK, then disconnect the ABS control unit coupler.
5) Run the engine at 5 000 r/min with the dimmer switch set to
HI.
6) Measure the voltage between F (O/Y) and N (B/W) at the
coupler.
& Tester knob indication: Voltage (')
Is the voltage same as step 2 above?
YES Replace the ABS control unit/HU.
Inspect the wire harness. (Faulty ignition or
NO
ground wire)
GSF1200AK6/SAK6 ('06-MODEL)
ABS control unit coupler (Harness end)
63